{"id":15469,"date":"2025-08-26T09:02:17","date_gmt":"2025-08-26T09:02:17","guid":{"rendered":"https:\/\/lumarquimica.com\/viscosity-index-improvers\/"},"modified":"2026-06-25T11:31:22","modified_gmt":"2026-06-25T11:31:22","slug":"viscosity-index-improvers","status":"publish","type":"page","link":"https:\/\/lumarquimica.com\/en\/viscosity-index-improvers\/","title":{"rendered":"Viscosity index improvers"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"15469\" class=\"elementor elementor-15469 elementor-14014\" data-elementor-settings=\"[]\">\r\n\t\t\t\t\t\t<div class=\"elementor-inner\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-section-wrap\">\r\n\t\t\t\t\t\t\t<main class=\"elementor-section elementor-top-section elementor-element elementor-element-5e5be35 elementor-reverse-tablet elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5e5be35\" data-element_type=\"section\" id=\"details\" data-settings=\"{&quot;background_background&quot;:&quot;slideshow&quot;,&quot;background_slideshow_gallery&quot;:[],&quot;background_slideshow_loop&quot;:&quot;yes&quot;,&quot;background_slideshow_slide_duration&quot;:5000,&quot;background_slideshow_slide_transition&quot;:&quot;fade&quot;,&quot;background_slideshow_transition_duration&quot;:500}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-thegem\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-446d37c\" data-id=\"446d37c\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-dd0d827 elementor-widget__width-initial flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-heading\" data-id=\"dd0d827\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<style>\/*! elementor - v3.5.5 - 03-02-2022 *\/\r\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h1 class=\"elementor-heading-title elementor-size-default\"><p data-pm-slice=\"1 1 []\">Viscosity improvers for lubricants: how to select the right VII based on application, stability, and performance<\/p><\/h1>\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-77b1b1e flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-text-editor\" data-id=\"77b1b1e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<style>\/*! elementor - v3.5.5 - 03-02-2022 *\/\r\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#818a91;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#818a91;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\r\n\t\t\t\t<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"0\" data-end=\"432\">Viscosity is one of the most important properties of a lubricant. It defines the oil\u2019s ability to form a film between moving surfaces, influences friction, affects energy consumption, and determines wear protection. However, in a real formulation it is not enough to achieve a specific viscosity at 40 \u00b0C or 100 \u00b0C. The challenge lies in maintaining proper performance across the entire operating temperature range of the lubricant.<\/p>\n<p><\/p>\n<p data-start=\"434\" data-end=\"800\">Viscosity improvers, also known as viscosity index improvers, VI improvers, VII, or viscosity modifiers, are polymeric additives designed to reduce the change in oil viscosity as temperature varies. Their main function is to help the lubricant maintain sufficient fluidity at low temperatures while preserving an adequate lubricating film when temperature increases.<\/p>\n<p><\/p>\n<p data-start=\"802\" data-end=\"1053\" data-is-last-node=\"\" data-is-only-node=\"\">This technology is especially relevant in multigrade lubricants, high-viscosity-index hydraulic oils, gear oils, transmission fluids, engine oils, greases, and other industrial formulations where viscosity stability has a direct impact on performance.<\/p>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-43644cb elementor-hidden-tablet elementor-hidden-mobile sticky-parent\" data-id=\"43644cb\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-ca86714 elementor-hidden-tablet elementor-hidden-mobile sticky-column elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ca86714\" data-element_type=\"section\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-thegem\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-f98ff29\" data-id=\"f98ff29\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-59d2866 flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-text-editor\" data-id=\"59d2866\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\r\n\t\t\t\t<h5><span style=\"color: #222220;\">\u00c0lex<\/span><\/h5>\n<p><\/p>\n<h5><span style=\"color: #222220;\">Andr\u00e9s<\/span><\/h5>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-c5d9b72 flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-text-editor\" data-id=\"c5d9b72\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\r\n\t\t\t\tLubricant Specialist<br><h6><strong><span lang=\"CA\">+34 935 947 500<\/span><\/strong><\/h6><br><a href=\"mailto:technical@lumarquimica.com\" target=\"_blank\" rel=\"noopener\">technical@lumarquimica.com<\/a>\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-1db0945\" data-id=\"1db0945\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2464f0a flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-image\" data-id=\"2464f0a\" data-element_type=\"widget\" data-widget_type=\"image.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<style>\/*! elementor - v3.5.5 - 03-02-2022 *\/\r\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t<div class=\"elementor-image\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/lumarquimica.com\/wp-content\/uploads\/elementor\/thumbs\/aa-ppkgm6zhqkoxirsd4rqp14trkfe8vqn9zyq5lulzo0-copia-q9n2b277g6tsc1nbjgq64x5qfn96pzew5ap6gdav9s.png\" title=\"aa-ppkgm6zhqkoxirsd4rqp14trkfe8vqn9zyq5lulzo0 copia\" alt=\"aa-ppkgm6zhqkoxirsd4rqp14trkfe8vqn9zyq5lulzo0 copia\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-2491181 elementor-button-info elementor-align-center flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-button\" data-id=\"2491181\" data-element_type=\"widget\" data-widget_type=\"button.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\r\n\t\t\t<a href=\"https:\/\/lumarquimica.com\/en\/contact-products-2\/\" class=\"elementor-button-link elementor-button elementor-size-lg\" role=\"button\">\r\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\r\n\t\t\t\t\t\t<span class=\"elementor-button-text\">CONTACT AN ADVISOR<\/span>\r\n\t\t<\/span>\r\n\t\t\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/main>\r\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4c7bfb2 elementor-hidden-desktop elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4c7bfb2\" data-element_type=\"section\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-thegem\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6abaebe\" data-id=\"6abaebe\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a704ff7 tabla-disponibles elementor-hidden-tablet elementor-hidden-mobile flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-html\" data-id=\"a704ff7\" data-element_type=\"widget\" data-widget_type=\"html.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<div style=\"overflow-x: auto;\">\r\n  <table width=\"100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\r\n    <tbody>\r\n        <tr>\r\n          <!--<th rowspan=\"70\" scope=\"col\" class=\"color1 text-white\">Ingredientes para Lubricantes<\/th>-->\r\n          <th rowspan=\"9\" scope=\"col\" class=\"color3\" rowspan=\"2\">Bases<\/th>\r\n          <th scope=\"col\" class=\"color3\">PAO<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">PAG<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Esteres<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">PIB<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Esteres Carboxilicos<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Siloxanos<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">PFPE<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Esteres Fosf\u00f3ricos<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">G-I, G-II, G-III<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th rowspan=\"10\" scope=\"col\" class=\"color3\">Aditivos<\/th>\r\n          <th scope=\"col\" class=\"color3\">Antidesgaste\/Extrema presi\u00f3n(AW\/EP)<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Antioxidantes<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Inhibidores de Corrosi\u00f3n<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Pasivadores de metales<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Modificadores de fricci\u00f3n<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Antiespumantes<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Filantes<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Anti-niebla<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Paquetes<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Agentes \"coupling\"<\/th>\r\n        <\/tr>\r\n        <tr>\r\n            <th rowspan=\"5\" scope=\"col\" class=\"color3\">Pol\u00edmeros<\/th>\r\n            <th scope=\"col\" class=\"color3\">Mejoradores del \u00edndice de Viscosidad (VII)<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Depresores punto fluidez (PPD)<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Espesantes<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Grasas<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">-<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th rowspan=\"3\" scope=\"col\" class=\"color3\">Alquilsulfonatos<\/th>\r\n          <th scope=\"col\" class=\"color3\">Sulfonato s\u00f3dico<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Sulfonato c\u00e1lcico<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Sulfonato Magnesio<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th rowspan=\"4\" scope=\"col\" class=\"color3\">Aminas<\/th>\r\n          <th scope=\"col\" class=\"color3\">ALCANOLAMINAS<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Aminas<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Polieter Aminas<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Aminas Multifuncionales<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th rowspan=\"5\" scope=\"col\" class=\"color3\">Lubricantes s\u00f3lidos<\/th>\r\n          <th scope=\"col\" class=\"color3\">Grafito<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">DISULFURO de Molibdeno<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Nitruro de Boro (BN)<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Cerflon<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">PTFE<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th rowspan=\"11\" scope=\"col\" class=\"color3\">Tensioactivos<\/th>\r\n          <th scope=\"col\" class=\"color3\">Alcoxilatos<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Co-Polimeros Block<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Alcoholes etoxilados<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">\u00c1cidos grasos etoxilados<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Esteres etoxilados<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Aminas etoxilados<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Esteres de sorbitan<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Esteres de sorbitan etoxilados<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Esteres de fosfatos<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Baja espuma<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Polim\u00e9ricos<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Agentes solventes (coupling)<\/th>\r\n          <th scope=\"col\" class=\"color3\">-<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Alcoholes grasos<\/th>\r\n          <th scope=\"col\" class=\"color3\">Alcoholes grasos<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">\u00c1cidos grasos<\/th>\r\n          <th scope=\"col\" class=\"color3\">\u00c1cidos grasos<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Ceras<\/th>\r\n          <th scope=\"col\" class=\"color3\">Ceras<\/th>\r\n        <\/tr>\r\n        <tr>\r\n          <th scope=\"col\" class=\"color3\">Agentes de superficie<\/th>\r\n          <th scope=\"col\" class=\"color3\">Agentes de superficie<\/th>\r\n        <\/tr>\r\n    <\/tbody>\r\n  <\/table>\r\n<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-0ad5f70 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0ad5f70\" data-element_type=\"section\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-thegem\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-714e962\" data-id=\"714e962\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d991465 flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-image\" data-id=\"d991465\" data-element_type=\"widget\" data-widget_type=\"image.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-image\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/lumarquimica.com\/wp-content\/uploads\/2022\/06\/aa-ppkgm6zhqkoxirsd4rqp14trkfe8vqn9zyq5lulzo0-copia-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/lumarquimica.com\/wp-content\/uploads\/2022\/06\/aa-ppkgm6zhqkoxirsd4rqp14trkfe8vqn9zyq5lulzo0-copia-150x150.png 150w, https:\/\/lumarquimica.com\/wp-content\/uploads\/2022\/06\/aa-ppkgm6zhqkoxirsd4rqp14trkfe8vqn9zyq5lulzo0-copia-160x160.png 160w, https:\/\/lumarquimica.com\/wp-content\/uploads\/2022\/06\/aa-ppkgm6zhqkoxirsd4rqp14trkfe8vqn9zyq5lulzo0-copia-100x100.png 100w, https:\/\/lumarquimica.com\/wp-content\/uploads\/2022\/06\/aa-ppkgm6zhqkoxirsd4rqp14trkfe8vqn9zyq5lulzo0-copia.png 200w\" sizes=\"(max-width: 150px) 100vw, 150px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-27976cb flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-text-editor\" data-id=\"27976cb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\r\n\t\t\t\t<h5 style=\"text-align: center;\"><span style=\"color: #222220;\">Alex<\/span><\/h5>\n<p><\/p>\n<h5 style=\"text-align: center;\"><span style=\"color: #222220;\">Andr\u00e9s<\/span><\/h5>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-926ac33 flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-text-editor\" data-id=\"926ac33\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\r\n\t\t\t\t<p style=\"text-align: center;\">Lubricant Specialist<\/p>\n<h6 style=\"text-align: center;\"><strong><span lang=\"CA\">+34 935 947 500<\/span><\/strong><\/h6>\n<p><\/p>\n<p style=\"text-align: center;\"><a href=\"mailto:technical@lumarquimica.com\" target=\"_blank\" rel=\"noopener\">technical@lumarquimica.com<\/a><\/p>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-d65b490\" data-id=\"d65b490\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-36fec4f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"36fec4f\" data-element_type=\"section\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-thegem\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-0b0cc35\" data-id=\"0b0cc35\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-315e241 elementor-button-info elementor-align-center flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-button\" data-id=\"315e241\" data-element_type=\"widget\" data-widget_type=\"button.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\r\n\t\t\t<a href=\"https:\/\/lumarquimica.com\/en\/contact-products-2\/\" class=\"elementor-button-link elementor-button elementor-size-md\" role=\"button\">\r\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\r\n\t\t\t\t\t\t<span class=\"elementor-button-text\">CONTACT AN ADVISOR<\/span>\r\n\t\t<\/span>\r\n\t\t\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<main class=\"elementor-section elementor-top-section elementor-element elementor-element-2dc0f0d elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"2dc0f0d\" data-element_type=\"section\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-55ed4ce\" data-id=\"55ed4ce\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-784cb15 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"784cb15\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-thegem\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-330f47e\" data-id=\"330f47e\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3596319 flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-heading\" data-id=\"3596319\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Viscosity and viscosity index: two concepts worth distinguishing<\/h2>\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-0125595 flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-text-editor\" data-id=\"0125595\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\r\n\t\t\t\t<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"0\" data-end=\"318\">Kinematic viscosity indicates a fluid\u2019s resistance to flow under the influence of gravity. In lubricants, it is typically measured at 40 \u00b0C and 100 \u00b0C using standardized methods such as ASTM D445. These values allow oils to be classified, ISO VG or SAE grades to be assigned, and different formulations to be compared.<\/p>\n<p><\/p>\n<p data-start=\"320\" data-end=\"628\">The viscosity index describes how viscosity changes with temperature. A high viscosity index indicates that the oil loses less relative viscosity as temperature increases. This is important because the lubricating film largely depends on the fluid maintaining sufficient viscosity under operating conditions.<\/p>\n<p><\/p>\n<p data-start=\"630\" data-end=\"1071\" data-is-last-node=\"\" data-is-only-node=\"\">In industrial applications, a high viscosity index can help stabilize lubricant performance in equipment exposed to thermal fluctuations. In automotive applications, it enables the formulation of oils capable of performing both during cold start and under high temperature, load, and speed conditions. For this reason, VII should not be considered merely as \u201cthickeners,\u201d but as additives that modify the oil\u2019s viscosity\u2013temperature profile.<\/p>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-36df7a2\" data-id=\"36df7a2\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5b1081a flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-heading\" data-id=\"5b1081a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How viscosity index improvers work<\/h2>\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-7a967eb flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-text-editor\" data-id=\"7a967eb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\r\n\t\t\t\t<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"0\" data-end=\"352\">Viscosity improvers are oil-soluble polymers. Their effect depends on the hydrodynamic volume they occupy in the fluid, their molecular weight, their molecular architecture, and their interaction with the base oil. These factors determine how much the polymer contributes to viscosity increase and how it behaves under temperature and shear conditions.<\/p>\n<p><\/p>\n<p data-start=\"354\" data-end=\"656\">At low temperatures, the polymer tends to adopt a more compact conformation. Under these conditions, its effect on viscosity is limited, which helps maintain lubricant fluidity. This characteristic is important for cold starts, mobile hydraulic systems, transmissions, and equipment operating outdoors.<\/p>\n<p><\/p>\n<p data-start=\"658\" data-end=\"948\">At high temperatures, the polymer occupies a larger volume within the oil and increases resistance to flow. In this way, it partially compensates for the natural loss of viscosity of the base oil. The result is a lubricant with reduced viscosity variation between low and high temperatures.<\/p>\n<p><\/p>\n<p data-start=\"950\" data-end=\"1376\" data-is-last-node=\"\" data-is-only-node=\"\">The effectiveness of this mechanism does not depend solely on the amount of polymer added. It is also influenced by the modifier\u2019s chemistry, mechanical stability, compatibility with the base oil, and the presence of other additives in the formulation. A VII may improve viscosity index, but if it does not withstand shear well or negatively affects low-temperature behavior, it may not be the best choice for the application.<\/p>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/main>\r\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4b9718b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4b9718b\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\r\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-thegem\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-34a7edd\" data-id=\"34a7edd\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5601fc6 flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-heading\" data-id=\"5601fc6\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Key properties in selecting a viscosity improver<\/h2>\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-f47c9cb flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-text-editor\" data-id=\"f47c9cb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\r\n\t\t\t\t<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"0\" data-end=\"259\">The selection of a viscosity modifier should be based on several technical parameters. Focusing only on final viscosity can lead to formulation errors, especially in lubricants subjected to high loads, wide temperature ranges, or continuous mechanical stress.<\/p>\n<p><\/p>\n<p data-start=\"261\" data-end=\"544\">The first parameter typically evaluated is thickening power. This concept describes the polymer\u2019s ability to increase the kinematic viscosity of the base oil at a given treat rate. It depends on molecular weight, polymer structure, solution volume, and compatibility with the medium.<\/p>\n<p><\/p>\n<p data-start=\"546\" data-end=\"976\">A polymer with high thickening power may allow the use of lower treat rates to reach the target viscosity. However, this advantage must be assessed together with shear stability. In some cases, a highly efficient polymer may suffer greater permanent viscosity loss during service. For this reason, the real cost should not be calculated only per kilogram price, but in terms of treat cost and final performance in the formulation.<\/p>\n<p><\/p>\n<p data-start=\"978\" data-end=\"1308\">Another critical parameter is temporary viscosity loss. Under high temperature and high shear conditions, polymer chains may align in the direction of flow. This temporarily reduces the polymer\u2019s contribution to viscosity. When shear conditions cease, the polymer returns to its original conformation and the effect is reversible.<\/p>\n<p><\/p>\n<p data-start=\"1310\" data-end=\"1636\">In engine oils and other demanding applications, this behavior is related to HTHS viscosity (High Temperature High Shear). HTHS measures lubricant viscosity at high temperature and high shear rate, typically at 150 \u00b0C. This value is directly related to the oil\u2019s ability to maintain a lubricating film under severe conditions.<\/p>\n<p><\/p>\n<p data-start=\"1638\" data-end=\"1988\" data-is-last-node=\"\" data-is-only-node=\"\">A lower HTHS can help reduce friction and improve fuel efficiency, but it may also reduce film thickness if not properly matched to the application. A higher HTHS improves protection under load, although it can increase frictional losses. The choice depends on the balance between efficiency, protection, technical specifications, and equipment type.<\/p>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-c9a1450 flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-text-editor\" data-id=\"c9a1450\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\r\n\t\t\t\t<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Oil Type \/ Target Application<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Recommended HTHS (mPa\u00b7s @150\u00b0C)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Maximum protection \/ High load engines<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\u2265 3.5<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Balanced protection &amp; fuel efficiency<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2.9 \u2013 3.2<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Maximum fuel economy<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2.6 \u2013 2.9<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Ultra fuel economy (e.g. 0W-16)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2.3 \u2013 2.6<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-f921091 flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-text-editor\" data-id=\"f921091\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\r\n\t\t\t\t<div class=\"qMYqUG_convSearchResultHighlightRoot\">\n<div class=\"\" data-turn-id-container=\"request-WEB:e0d07b8b-a903-428a-8ff5-980cd3bfd1eb-42\" data-is-intersecting=\"true\">\n<section class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [&amp;:has([data-writing-block])&gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:e0d07b8b-a903-428a-8ff5-980cd3bfd1eb-42\" data-turn-id-container=\"request-WEB:e0d07b8b-a903-428a-8ff5-980cd3bfd1eb-42\" data-testid=\"conversation-turn-86\" data-turn=\"assistant\">\n<div class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\">\n<div class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" data-conversation-screenshot-content=\"\">\n<div class=\"flex max-w-full flex-col gap-4 grow\">\n<div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+&amp;]:mt-1\" dir=\"auto\" tabindex=\"0\" data-message-author-role=\"assistant\" data-message-id=\"588f7f45-2ade-47f8-9d56-16cb35430713\" data-message-model-slug=\"gpt-5-3-mini\" data-turn-start-message=\"true\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden\">\n<div class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\">\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"0\" data-end=\"310\">Permanent viscosity loss is another key aspect. It occurs when polymer chains are mechanically broken due to shear forces. Unlike temporary viscosity loss, this phenomenon is not reversible. The lubricant permanently loses part of its viscosity and may fall outside the intended operating range during service.<\/p>\n<p data-start=\"312\" data-end=\"639\">Mechanical stability is commonly expressed through the Shear Stability Index (SSI). The lower the SSI, the higher the polymer\u2019s resistance to shear-induced breakdown. This parameter is especially important in high-pressure hydraulic oils, gear oils, transmission fluids, engine oils, and greases subjected to mechanical stress.<\/p>\n<p data-start=\"641\" data-end=\"1039\" data-is-last-node=\"\" data-is-only-node=\"\">Low-temperature performance must also be evaluated from the early stages of formulation. A viscosity modifier may improve viscosity index, but if it negatively affects pumpability, cold start behavior, or pour point, it can create issues in the final application. For this reason, VII selection should be coordinated with base oil choice and, when necessary, with the use of pour point depressants.<\/p>\n<\/div>\n<p><\/div>\n<p><\/div>\n<p><\/div>\n<p><\/div>\n<p><\/div>\n<p><\/section>\n<\/div>\n<p><\/div>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<main class=\"elementor-section elementor-top-section elementor-element elementor-element-42b4cc2 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"42b4cc2\" data-element_type=\"section\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a68a0a9\" data-id=\"a68a0a9\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-89a1bb5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"89a1bb5\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-thegem\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-c3c41e4\" data-id=\"c3c41e4\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a880502 flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-heading\" data-id=\"a880502\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Types of viscosity improvers<\/h2>\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-b5d19a6 flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-text-editor\" data-id=\"b5d19a6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\r\n\t\t\t\t<p>There are different families of viscosity modifiers. Each one offers a different balance between thickening power, shear stability, low-temperature performance, compatibility, cost, and final application.<\/p>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-61387fb flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-text-editor\" data-id=\"61387fb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\r\n\t\t\t\t<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Chemistry<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Application<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Advantages<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Disadvantages<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Polyisobutylene (PIB)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Greases, tackifier packages \/ adhesive agents<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Excellent tackiness. Good thickening capability.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Temperature sensitive. More complex handling.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Olefin copolymer (OCP)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Cost-sensitive formulations, engine oils<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Excellent thickening efficiency. Good cost-performance ratio.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Limited shear stability. Poor low-temperature performance.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Ethylene-propylene oligomer (EPO)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Gear oils, hydraulic fluids, high-performance engine oils<\/span><\/td>\n<td><span style=\"font-weight: 400;\">High thermo-oxidative stability. High shear stability. Low treat rate and good cost-in-use.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Higher cost vs standard OCP. Formulation sensitivity: solubility and compatibility.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Polymethacrylates (PMA)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Gear oils, hydraulic fluids, ATF<\/span><\/td>\n<td><span style=\"font-weight: 400;\">High viscosity index improvement. High shear stability. Good low-temperature performance.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Requires higher treat rates.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Hydrogenated styrene-diene copolymer (SBR\/HSD)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Gear oils, premium engine oils, greases<\/span><\/td>\n<td><span style=\"font-weight: 400;\">High viscosity index improvement. Excellent thickening efficiency. Very high shear stability.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Premium price positioning.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-579071a flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-text-editor\" data-id=\"579071a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\r\n\t\t\t\t<ul>\n<li aria-level=\"1\"><b>OCP: efficiency and competitive cost<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">OCPs, or olefin copolymers, are ethylene-propylene copolymers. They are widely used because they offer a good balance between cost and thickening efficiency. In many formulations, they allow the target viscosity grade to be achieved with a competitive treat cost.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">This family is common in engine oils and can also be used in industrial lubricants when the formulation requires a balance between performance and cost. Their versatility depends on polymer structure, ethylene content, supply form, and the base oil used.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Their main limitations appear when the application requires high shear stability or excellent low-temperature performance. In these cases, other technologies such as PMA, EPO, or styrenic polymers can provide a more robust response, although at a higher initial cost.<\/span><\/p>\n<ul>\n<li aria-level=\"1\"><b>PMA: viscosity control and good low-temperature performance<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">PMA, or polymethacrylates, stand out for their ability to improve viscosity index and their good low-temperature performance. They are a particularly interesting family in hydraulic fluids, ATF, gear oils, and formulations where pumpability and viscosity index are priorities.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">In hydraulic oils, PMAs can be a preferred option when a high viscosity index and good cold-start performance are required. This combination is useful in mobile machinery, equipment exposed to temperature changes, or systems requiring precise hydraulic response.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Their main drawback is usually the higher treat cost compared to more economical options such as OCP. However, in applications where low temperature performance, stability, and precision are critical, cost must be evaluated in relation to final fluid behavior.<\/span><\/p>\n<ul>\n<li aria-level=\"1\"><b>PIB: viscosity, tackiness, and film persistence<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">PIB, or polyisobutylene, provides thickening, oil compatibility, and a strong tackifying effect that is highly valued in certain formulations. It is not used only for its contribution to viscosity, but also for its ability to improve lubricant persistence on surfaces.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">This family is common in greases, gear oils, tackifier packages, process oils, and formulations where higher adhesion or reduced runoff is required. In applications involving open gears, chains, cables, or exposed surfaces, this property can be particularly useful.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Its use as a primary viscosity improver in high-performance multigrade engine oils is less common. In these cases, technologies with a better balance between viscosity index, shear stability, HTHS, and low-temperature behavior are typically preferred.<\/span><\/p>\n<ul>\n<li aria-level=\"1\"><b>EPO: stability and high-performance formulation<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">EPOs, or ethylene propylene oligomers, are liquid viscosity modifiers based on ethylene-propylene structures. They can offer a good combination of viscosity control, mechanical stability, thermo-oxidative stability, and ease of handling.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">This family is used in gear oils, hydraulic fluids, ATF, greases, and high-performance lubricants. In certain formulations, EPOs allow low shear viscosity loss while maintaining a good balance between efficiency and stability.<\/span><\/p>\n<ul>\n<li aria-level=\"1\"><b>Styrenic polymers: efficiency and stability under severe conditions<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Hydrogenated styrene-diene, styrene-isoprene, and other styrenic architectures are used when high thickening efficiency and strong shear stability are required. They may be presented in diblock or star structures, each providing a different performance profile.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Their main limitation is typically cost. However, when the lubricant must maintain viscosity over long periods or under demanding mechanical conditions, the technical value can justify a more specialized solution.<\/span><\/p>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/main>\r\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7df2146 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7df2146\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\r\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-thegem\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-78a414b\" data-id=\"78a414b\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2c2838a flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-heading\" data-id=\"2c2838a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Common mistakes when selecting a viscosity modifier<\/h2>\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-db6dbe9 flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-text-editor\" data-id=\"db6dbe9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\r\n\t\t\t\t<p>Uno de los errores m\u00e1s frecuentes es seleccionar el modificador de viscosidad \u00fanicamente por su poder espesante. Alcanzar la viscosidad objetivo con una dosis baja puede parecer una ventaja clara, pero no siempre garantiza estabilidad durante el servicio. Si el pol\u00edmero tiene baja resistencia a la cizalla, la viscosidad final puede caer despu\u00e9s de pocas horas de trabajo.<\/p>\n<p>Otro error com\u00fan es comparar productos solo por precio por kilo. En formulaci\u00f3n, el dato m\u00e1s \u00fatil suele ser el coste por tratamiento efectivo y por rendimiento conseguido. Un producto de mayor precio puede ser m\u00e1s competitivo si permite mejorar la estabilidad, reducir dosis, evitar reformulaciones o cumplir especificaciones m\u00e1s exigentes.<\/p>\n<p>Tambi\u00e9n es importante no seleccionar el VII de forma aislada. El modificador debe ser compatible con el aceite base y con el paquete de aditivos. Antioxidantes, aditivos antidesgaste, extrema presi\u00f3n, inhibidores de corrosi\u00f3n, detergentes, dispersantes y antiespumantes pueden influir en el comportamiento final del sistema.<\/p>\n<p>Por \u00faltimo, conviene validar siempre la formulaci\u00f3n en condiciones representativas. Los datos de viscosidad inicial son necesarios, pero no suficientes. Ensayos de cizalla, baja temperatura, estabilidad oxidativa, compatibilidad y rendimiento espec\u00edfico permiten confirmar si la selecci\u00f3n del VII es adecuada para la aplicaci\u00f3n final.<\/p>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<main class=\"elementor-section elementor-top-section elementor-element elementor-element-2f364f5 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"2f364f5\" data-element_type=\"section\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-064c480\" data-id=\"064c480\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-b0d5f02 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b0d5f02\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-thegem\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-3caeeb1\" data-id=\"3caeeb1\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ba30bc9 flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-heading\" data-id=\"ba30bc9\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Practical criteria for selecting the right VII<\/h2>\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-7305140 flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-text-editor\" data-id=\"7305140\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\r\n\t\t\t\t<p>Selection should start from the application and not from the chemistry. Before choosing between OCP, PMA, PIB, EPO, or styrenic polymers, it is essential to define what the lubricant must do in service.<\/p>\n<p>The first step is to establish the target viscosity at 40 \u00b0C and 100 \u00b0C, the desired viscosity index, and the low-temperature requirements. After that, shear conditions, operating temperature, load, type of equipment, and expected service life must be evaluated.<\/p>\n<p>The base oil must also be considered. A Group I, Group II, Group III, PAO, ester, or other synthetic base can significantly affect polymer solubility, treat response, and low-temperature behavior. The polymer architecture and the diluent used in the concentrate can also influence compatibility.<\/p>\n<p>As a general guideline, OCPs are typically suitable when thickening efficiency and cost competitiveness are priorities. PMAs perform well when low-temperature behavior and high viscosity index are critical. PIBs are useful when tackiness or film persistence is required. EPOs offer a balanced combination of stability and performance. Styrenic polymers are usually reserved for formulations where shear stability and efficiency justify a premium solution.<\/p>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-e89565a\" data-id=\"e89565a\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6090b66 flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-heading\" data-id=\"6090b66\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The role of technical support in formulation<\/h2>\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-81a0506 flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-text-editor\" data-id=\"81a0506\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\r\n\t\t\t\t<p>The selection of a viscosity improver should not be based solely on a property table. The same chemistry can behave differently depending on the base oil, treat rate, additive package, and final application. For this reason, technical support is an important part of the selection process.<\/p>\n<p>At Lumar Qu\u00edmica, we help formulators of industrial and automotive lubricants select raw materials according to the technical objective of each formulation. In the case of viscosity index improvers, this involves evaluating target viscosity, viscosity index, SSI, HTHS, low-temperature performance, compatibility, and real operating conditions.<\/p>\n<p>A well-selected viscosity improver enables the formulation of more stable, efficient lubricants that are better adapted to the application. It is not only about increasing viscosity. It is about controlling how viscosity evolves during service and ensuring that the lubricant maintains its protective function under the conditions for which it was designed.<\/p>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/main>\r\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e9e64ef elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e9e64ef\" data-element_type=\"section\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-thegem\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-0cd1aad\" data-id=\"0cd1aad\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6b6f753 elementor-position-right box_ficha elementor-view-default elementor-vertical-align-top flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-icon-box\" data-id=\"6b6f753\" data-element_type=\"widget\" data-widget_type=\"icon-box.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<style>\/*! elementor - v3.5.5 - 03-02-2022 *\/\r\n@media (min-width:768px){.elementor-widget-icon-box.elementor-position-left .elementor-icon-box-wrapper,.elementor-widget-icon-box.elementor-position-right .elementor-icon-box-wrapper{display:-webkit-box;display:-ms-flexbox;display:flex}.elementor-widget-icon-box.elementor-position-left .elementor-icon-box-icon,.elementor-widget-icon-box.elementor-position-right .elementor-icon-box-icon{display:-webkit-inline-box;display:-ms-inline-flexbox;display:inline-flex;-webkit-box-flex:0;-ms-flex:0 0 auto;flex:0 0 auto}.elementor-widget-icon-box.elementor-position-right .elementor-icon-box-wrapper{text-align:right;-webkit-box-orient:horizontal;-webkit-box-direction:reverse;-ms-flex-direction:row-reverse;flex-direction:row-reverse}.elementor-widget-icon-box.elementor-position-left .elementor-icon-box-wrapper{text-align:left;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-ms-flex-direction:row;flex-direction:row}.elementor-widget-icon-box.elementor-position-top .elementor-icon-box-img{margin:auto}.elementor-widget-icon-box.elementor-vertical-align-top .elementor-icon-box-wrapper{-webkit-box-align:start;-ms-flex-align:start;align-items:flex-start}.elementor-widget-icon-box.elementor-vertical-align-middle .elementor-icon-box-wrapper{-webkit-box-align:center;-ms-flex-align:center;align-items:center}.elementor-widget-icon-box.elementor-vertical-align-bottom .elementor-icon-box-wrapper{-webkit-box-align:end;-ms-flex-align:end;align-items:flex-end}}@media (max-width:767px){.elementor-widget-icon-box .elementor-icon-box-icon{margin-left:auto!important;margin-right:auto!important;margin-bottom:15px}}.elementor-widget-icon-box .elementor-icon-box-wrapper{text-align:center}.elementor-widget-icon-box .elementor-icon-box-title a{color:inherit}.elementor-widget-icon-box .elementor-icon-box-content{-webkit-box-flex:1;-ms-flex-positive:1;flex-grow:1}.elementor-widget-icon-box .elementor-icon-box-description{margin:0}<\/style>\t\t<div class=\"elementor-icon-box-wrapper\">\r\n\t\t\t\t\t\t<div class=\"elementor-icon-box-icon\">\r\n\t\t\t\t<a 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>\r\n\t\t\t\t\t\tRequest <br><span class=\"bold\">A SAMPLE<\/span>\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/h3>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-48b7095\" data-id=\"48b7095\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7febe8f elementor-position-right box_ficha elementor-view-default elementor-vertical-align-top flex-horizontal-align-default flex-horizontal-align-tablet-default flex-horizontal-align-mobile-default flex-vertical-align-default flex-vertical-align-tablet-default flex-vertical-align-mobile-default elementor-widget elementor-widget-icon-box\" data-id=\"7febe8f\" data-element_type=\"widget\" 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M3.8,7.3h12.6l0,14.8h-2.9h-1h-2h-6H3.8  c-1.2,0-2.3-1-2.3-2.3v-1.1v-1.8V8.8V6.7V6.6C2.2,7.1,2.9,7.3,3.8,7.3z\"><\/path><\/g><\/svg>\t\t\t\t<\/a>\r\n\t\t\t<\/div>\r\n\t\t\t\t\t\t<div class=\"elementor-icon-box-content\">\r\n\t\t\t\t<h3 class=\"elementor-icon-box-title\">\r\n\t\t\t\t\t<a href=\"https:\/\/lumarquimica.com\/en\/contact-products-2\/\" >\r\n\t\t\t\t\t\tDownload<br><span class=\"bold\">PDF Catalogue<\/span>\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/h3>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t","protected":false},"excerpt":{"rendered":"<p>Viscosity improvers for lubricants: how to select the right VII based on application, stability, and performance Viscosity is one 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