{"id":3929,"date":"2025-04-09T10:10:18","date_gmt":"2025-04-09T06:40:18","guid":{"rendered":"https:\/\/iranetrade.com\/blog\/?p=3929"},"modified":"2025-04-19T11:07:42","modified_gmt":"2025-04-19T07:37:42","slug":"colored-bitumen","status":"publish","type":"post","link":"https:\/\/iranetrade.com\/blog\/colored-bitumen\/","title":{"rendered":"What is Colored Bitumen: Properties + Differences from Black Bitumen"},"content":{"rendered":"\r\n<p><span style=\"background-color: #99ccff;\"><strong><em>Colored bitumen is essentially the same as black bitumen<\/em><\/strong>. However, its manufacturers improve the black bitumen\u2019s properties and performance by <strong><em>applying certain processes and adding chemicals to it<\/em><\/strong>. Therefore, colored bitumen has <strong><em>high flexibility, resistance, and adhesion<\/em><\/strong>. Additionally, it has numerous uses, the most important of which are <strong><em>road surfacing and construction<\/em><\/strong>.<\/span> But how exactly is this bitumen produced? And <em><strong>how is it different from regular black bitumen<\/strong><\/em>? If you wish to know more, read this article from <a href=\"https:\/\/iranetrade.com\/\" target=\"_blank\" rel=\"noopener\"><strong><em>Iran ETrade<\/em><\/strong><\/a> as we explore these topics.<\/p>\r\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<label class=\"ez-toc-title\" style=\"cursor:inherit\">introduction of colored bitumen<\/label>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/iranetrade.com\/blog\/colored-bitumen\/#What_is_Colored_Bitumen\" >What is Colored Bitumen?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/iranetrade.com\/blog\/colored-bitumen\/#What_is_Colorless_Bitumen\" >What is Colorless Bitumen?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/iranetrade.com\/blog\/colored-bitumen\/#How_is_Colored_Bitumen_Produced\" >How is Colored Bitumen Produced?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/iranetrade.com\/blog\/colored-bitumen\/#Differences_Between_Colored_Bitumen_and_Black_Bitumen\" >Differences Between Colored Bitumen and Black Bitumen<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/iranetrade.com\/blog\/colored-bitumen\/#Best_Bitumen_for_Producing_Colored_Bitumen\" >Best Bitumen for Producing Colored Bitumen<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/iranetrade.com\/blog\/colored-bitumen\/#Use_of_Colored_Bitumen_in_Road_Construction\" >Use of Colored Bitumen in Road Construction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/iranetrade.com\/blog\/colored-bitumen\/#Features_of_Colored_Bitumen\" >Features of Colored Bitumen<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/iranetrade.com\/blog\/colored-bitumen\/#How_to_Use_Colored_Bitumen\" >How to Use Colored Bitumen<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/iranetrade.com\/blog\/colored-bitumen\/#How_to_Produce_Colorless_Bitumen\" >How to Produce Colorless Bitumen<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/iranetrade.com\/blog\/colored-bitumen\/#Frequently_Asked_Questions_About_Colored_Bitumen\" >Frequently Asked Questions About Colored Bitumen<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_Colored_Bitumen\"><\/span>What is Colored Bitumen?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<blockquote><strong><em>Combining regular bitumen with other chemicals<\/em><\/strong> enhances its properties and performance, which makes it suitable for more applications.<\/blockquote>\r\n<p><strong><em>Colored bitumen<\/em><\/strong> is derived from the same black bitumen. But Bitumen manufacturers mix it with specific materials, including <strong><em>various organic and inorganic pigments<\/em><\/strong>.<\/p>\r\n<p>(Click for more information on <a href=\"https:\/\/iranetrade.com\/blog\/cutback-bitumen\/\" target=\"_blank\" rel=\"noopener\"><strong><em>the use of soluble bitumen<\/em><\/strong><\/a>.) <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3906\" src=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/04\/colored-bitumen-1.jpg\" alt=\"What is Colored Bitumen?\" width=\"500\" height=\"400\" srcset=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/04\/colored-bitumen-1.jpg 500w, https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/04\/colored-bitumen-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"What_is_Colorless_Bitumen\"><\/span>What is Colorless Bitumen?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p><strong><em>Colorless bitumen<\/em><\/strong> has low resistance to weather changes. However, It has an advantage: Bitumen manufacturers can turn it into colored bitumen by adding just <strong><em>1-2% pigment<\/em><\/strong>. Among colored asphalt products, one unique type is colorless bitumen. It is <strong><em>produced in only a few countries<\/em><\/strong> and is generally very costly to manufacture.<\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"How_is_Colored_Bitumen_Produced\"><\/span>How is Colored Bitumen Produced?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<blockquote>The bitumen manufacturers generally produce colored asphalt by <strong><em>using pigments such as red and green iron oxide<\/em><\/strong>. If the manufacturers use colorless binders, they can create lighter-colored asphalt because these binders lack asphaltenes and have high color absorption.<\/blockquote>\r\n<p><span style=\"background-color: #99ccff;\">The bitumen Manufacturers also produce colored bitumen by combining regular bitumen with special pigments. These pigments have <strong><em>two types: organic and inorganic<\/em><\/strong>. Organic pigments, derived from <strong><em>natural sources such as plants and insects<\/em><\/strong>, are <strong><em>expensive and unstable<\/em><\/strong> which makes them unsuitable for use in bitumen.<\/span> <span style=\"background-color: #99ccff;\">In contrast, inorganic pigments such as <strong><em>red iron oxide, green chromium oxide, and titanium dioxide<\/em><\/strong> are highly stable and therefore, a better choice for mixing with bitumen.<\/span> <span style=\"background-color: #99ccff;\"><strong><em>The type of bitumen used in this mixture<\/em><\/strong> (natural or industrial) is also crucial. <strong><em>At temperatures above 180\u00b0C<\/em><\/strong>, certain pigments, like yellow and black iron oxide, turn into red iron oxide. Therefore, the mixing temperature is usually kept above 180\u00b0C.<\/span><\/p>\r\n<p>(Click for more information about <a href=\"https:\/\/iranetrade.com\/blog\/bitumen-export\/\" target=\"_blank\" rel=\"noopener\"><em><strong>Iranian bitumen exports<\/strong><\/em><\/a>.)<\/p>\r\n<h3>What Are Pigments in Colored Bitumen?<\/h3>\r\n<blockquote>The pigments used in colored asphalt are also called <strong><em>biological pigments or biochromes<\/em><\/strong>. These pigments do not dissolve in water and are used as finely ground solid particles mixed with liquids.<\/blockquote>\r\n<p>Pigments are <strong><em>highly concentrated color compounds<\/em><\/strong> used for coloring various materials, including colored asphalt. They naturally exist in plants and animals and are produced by living organisms. Their color results from the light absorption process. Generally, <strong><em>pigments come in four forms: compact, powder, granular, and grout<\/em><\/strong>.<\/p>\r\n<p>(Click for information on <a href=\"https:\/\/iranetrade.com\/bitumen-price\" target=\"_blank\" rel=\"noopener\"><em><strong>bitumen prices<\/strong><\/em><\/a>.)<\/p>\r\n<h3>Amount of Pigments Used<\/h3>\r\n<p><strong><em>The amount of pigment needed for colored asphalt<\/em><\/strong> depends on the type of pigment, the quantity of bitumen produced, and the desired final color. For example, the manufacturers can easily produce red colored asphalt using red iron oxide, whereas colored bitumen like yellow and green are more difficult to produce. Therefore, bitumen manufacturers use colored aggregates alongside pigments <strong><em>for lighter colors<\/em><\/strong> in bitumen. Also for iron oxide pigments, such as black, brown, and red, manufacturers typically add between 5% to 30% of the cement\u2019s weight to the bitumen mixture. <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3908\" src=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/04\/colored-bitumen-2.jpg\" alt=\"Amount of Pigments Used\" width=\"500\" height=\"400\" srcset=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/04\/colored-bitumen-2.jpg 500w, https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/04\/colored-bitumen-2-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"Differences_Between_Colored_Bitumen_and_Black_Bitumen\"><\/span>Differences Between Colored Bitumen and Black Bitumen<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p><strong><em>Colored asphalt and black bitumen have significant differences<\/em><\/strong>. For example: <span style=\"background-color: #99ccff;\">Colored asphalt is <strong><em>more resistant to heat and cold<\/em><\/strong>. Additionally, due to the use of polymers, it is more durable than black bitumen. Furthermore, colored asphalt <strong><em>does not require painting<\/em><\/strong> for road construction, which reduces costs and increases the durability of the colors.<\/span> <span style=\"background-color: #99ccff;\">On the other hand, this type of bitumen is more expensive than black bitumen <strong><em>due to its polymers and pigments<\/em><\/strong> and is <strong><em>more resistant to cracking and various pressures<\/em><\/strong>. <strong><em>Asphalt made with colored asphalt<\/em><\/strong> is also recyclable and is usually produced cold.<\/span> <span style=\"background-color: #99ccff;\">In addition, <strong><em>colored asphalt is more resistant to sunlight<\/em><\/strong> and does not harm the environment, whereas black bitumen does not have these properties.<\/span><\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"Best_Bitumen_for_Producing_Colored_Bitumen\"><\/span>Best Bitumen for Producing Colored Bitumen<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p><span style=\"background-color: #99ccff;\">The best type of bitumen for producing colored bitumen is <strong><em>Gilsonite or natural bitumen<\/em><\/strong>. Gilsonite or natural bitumen has specific properties, some of which are: <strong><em>Easy dissolution in organic solvents, high purity, good compatibility with petroleum materials, resemblance to glass-like minerals<\/em><\/strong>, high water resistance, high gloss, high brittleness, and easy conversion to powder.<\/span> Natural bitumen has a <strong><em>lower melting point<\/em><\/strong> (between 160 to 220\u00b0C) and <strong><em>good resistance to acids and bases<\/em><\/strong>. These properties make natural bitumen more advantageous than industrial or refined bitumen. Therefore, colored asphalt spray made from natural bitumen, named Bituclair, has better quality in terms of resistance, <strong><em>water repellency, durability, and longevity<\/em><\/strong> compared to colored asphalt produced from industrial bitumen.<\/p>\r\n<p>(Click to learn more about <a href=\"https:\/\/iranetrade.com\/blog\/what-is-bitumen-spray\/\" target=\"_blank\" rel=\"noopener\"><em><strong>the benefits of bitumen spray<\/strong><\/em><\/a>.)<\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"Use_of_Colored_Bitumen_in_Road_Construction\"><\/span>Use of Colored Bitumen in Road Construction<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p>Colored asphalt, <strong><em>due to its greater resistance to heat and cold<\/em><\/strong> (thanks to the use of polymers), has a major application in road construction. This property makes asphalt layers more durable and increases their lifespan. Many countries also use this type of bitumen <strong><em>instead of painting to mark different sections of highways<\/em><\/strong>, because its traits make it ideal for marking lines and paths on roads and highways.<\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"Features_of_Colored_Bitumen\"><\/span>Features of Colored Bitumen<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p>Colored bitumen has <strong><em>the following features<\/em><\/strong>:<\/p>\r\n<ul>\r\n<li><span style=\"background-color: #99ccff;\"><strong><em>High flexibility<\/em><\/strong>: Colored asphalt is highly compatible with chemical and petroleum materials, and polyurethane or acrylic polymer is used to increase its durability and flexibility.<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\"><strong><em>High resistance<\/em><\/strong>: Compared to regular bitumen, colored asphalt has a high resistance and is very practical.<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\"><strong><em>Excellent adhesion<\/em><\/strong>: Due to its special compounds, colored asphalt has high adhesion and good resistance to air and moisture penetration, making it an effective moisture barrier.<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\"><strong><em>High resistance to chemicals and ultraviolet rays<\/em><\/strong>.<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\"><strong><em>Protection of various surfaces against rust and corrosion<\/em><\/strong>.<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\"><strong><em>No requirement for thinning<\/em><\/strong>, and you can apply it to surfaces using a spray or special brush.<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\"><strong><em>Reasonably priced<\/em><\/strong><\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\"><strong><em>Easy to use and quick-drying<\/em><\/strong><\/span><\/li>\r\n<\/ul>\r\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3910\" src=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/04\/colored-bitumen-3.jpg\" alt=\"Features of Colored Bitumen\" width=\"500\" height=\"400\" srcset=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/04\/colored-bitumen-3.jpg 500w, https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/04\/colored-bitumen-3-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"How_to_Use_Colored_Bitumen\"><\/span>How to Use Colored Bitumen<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p><strong><em>To apply colored asphalt spray on various surfaces,<\/em><\/strong> you can follow these steps:<\/p>\r\n<ul>\r\n<li>Step 1: Before using the colored asphalt, <strong><em>ensure the surface is clean and dry<\/em><\/strong>, with no moisture, dust, grease, or contamination. Also, you should remove any loose previous paint.<\/li>\r\n<li>Step 2: <strong><em>Clean the surface using wire brushes or sandpaper<\/em><\/strong>. For larger surfaces, you can use sandblasting or abrasive blasting machines.<\/li>\r\n<li>Step 3: <strong><em>In humid environments<\/em><\/strong>, apply an anti-corrosion coating before painting the surface with bitumen.<\/li>\r\n<li>Step 4: <strong><em>Apply the paint evenly on all surfaces<\/em><\/strong> with the required number of layers.<\/li>\r\n<\/ul>\r\n<h2><span class=\"ez-toc-section\" id=\"How_to_Produce_Colorless_Bitumen\"><\/span>How to Produce Colorless Bitumen<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p><strong><em>To produce colorless bitumen<\/em><\/strong>, the manufacturers refine natural or industrial bitumen by using specific processes to remove its color. Then, to <strong><em>enhance the bitumen\u2019s desired properties<\/em><\/strong>, they usually add additives and polymers to <strong><em>improve its quality and strength<\/em><\/strong>.<\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions_About_Colored_Bitumen\"><\/span>Frequently Asked Questions About Colored Bitumen<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p>Below are some of the questions that you may have about colored asphalt:<\/p>\r\n<h3>How is Colored Asphalt Produced?<\/h3>\r\n<p><span style=\"background-color: #99ccff;\">Bitumen manufacturers produce colored bitumen by <strong><em>mixing bitumen with mineral pigments such as iron oxide or titanium dioxide<\/em><\/strong>.<\/span><\/p>\r\n<h3>What is the Use of Colored Bitumen in Road Construction?<\/h3>\r\n<p><span style=\"background-color: #99ccff;\">Colored asphalt is used in road construction <strong><em>to mark different sections of roads, reduce painting costs, and increase the durability and resistance of asphalt against weather conditions<\/em><\/strong>.<\/span><\/p>\r\n<h3>What is the Best Bitumen for Producing Colored Bitumen?<\/h3>\r\n<p><strong><em>The best bitumen for producing colored bitumen spray<\/em><\/strong> is natural bitumen or Gilsonite. <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3912\" src=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/04\/colored-bitumen-4.jpg\" alt=\"What is the Best Bitumen for Producing Colored Bitumen?\" width=\"500\" height=\"400\" srcset=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/04\/colored-bitumen-4.jpg 500w, https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/04\/colored-bitumen-4-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/> <strong>reference: <a href=\"https:\/\/www.qualitybitumen.com\/Colourbitumen.html\" target=\"_blank\" rel=\"nofollow noopener\">qualitybitumen<\/a>, <a href=\"https:\/\/bitumen6070.com\/all-about-colored-bitumens\/\" target=\"_blank\" rel=\"nofollow noopener\">bitumen6070<\/a><\/strong> <a class=\"btn-t fixmob-m7 mainbtn-n5 bicn-m7 bxl-m7 js-bprce-n5\" href=\"https:\/\/iranetrade.com\/bitumen-price\">Bitumen Price<i class=\"nf icon-shopping\"><\/i><\/a><\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>Colored bitumen is essentially the same as black bitumen. However, its manufacturers improve the black bitumen\u2019s properties and performance by applying certain processes and adding chemicals to it. Therefore, colored bitumen has high flexibility, resistance, and adhesion. Additionally, it has numerous uses, the most important of which are road surfacing and construction. But how exactly [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":3614,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3929","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.7 (Yoast SEO v25.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is Colored Bitumen: Properties and Applications!<\/title>\n<meta name=\"description\" content=\"Colored bitumen is the same as black bitumen, with the it is mixed with organic and inorganic pigments. introduction of colored bitumen on iranetrade weblog.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/iranetrade.com\/blog\/colored-bitumen\/\" 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