{"id":3682,"date":"2025-03-01T13:13:57","date_gmt":"2025-03-01T09:43:57","guid":{"rendered":"https:\/\/iranetrade.com\/blog\/?p=3682"},"modified":"2025-04-19T15:30:24","modified_gmt":"2025-04-19T12:00:24","slug":"what-is-soft-bitumen","status":"publish","type":"post","link":"https:\/\/iranetrade.com\/blog\/what-is-soft-bitumen\/","title":{"rendered":"What is Soft Bitumen: Applications in Industry + Comparison with Hard Bitumen"},"content":{"rendered":"\r\n<p><span style=\"background-color: #99ccff;\"><strong><em>Soft bitumen<\/em><\/strong> is a type of bitumen that, due to its <strong><em>low viscosity and high flexibility<\/em><\/strong>, can be used at lower temperatures than hard bitumen. It is derived from petroleum products and has many uses in industries such as <strong><em>road construction and waterproofing<\/em><\/strong> because of its <strong><em>adhesive and waterproof properties<\/em><\/strong>. This bitumen is particularly suitable for use in cold climates and <strong><em>projects that require greater flexibility<\/em><\/strong>. Soft asphalt is produced in various forms, including emulsion bitumen, blown bitumen, and bituminous mixtures, each with its unique characteristics and applications.<\/span> Therefore, in this article from <a href=\"https:\/\/iranetrade.com\/\" target=\"_blank\" rel=\"noopener\"><strong><em>IranETrade<\/em><\/strong><\/a>, we will further discuss the <strong><em>specifications and applications of soft asphalt<\/em><\/strong>.<\/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 Soft Bitumen And Application in Industry<\/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\/what-is-soft-bitumen\/#What_is_Soft_Bitumen\" >What is Soft 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\/what-is-soft-bitumen\/#Types_of_Soft_Bitumen\" >Types of Soft Bitumen<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/iranetrade.com\/blog\/what-is-soft-bitumen\/#1_Bitumen_Emulsion\" >1. Bitumen Emulsion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/iranetrade.com\/blog\/what-is-soft-bitumen\/#2_Blown_Bitumen\" >2. Blown Bitumen<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/iranetrade.com\/blog\/what-is-soft-bitumen\/#3_Cutback_Bitumen\" >3. Cutback Bitumen<\/a><\/li><\/ul><\/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\/what-is-soft-bitumen\/#Features_and_Technical_Specifications_of_Soft_Bitumen\" >Features and Technical Specifications of Soft Bitumen<\/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\/what-is-soft-bitumen\/#Applications_of_Soft_Bitumen\" >Applications of Soft 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\/what-is-soft-bitumen\/#Difference_Between_Soft_and_Hard_Bitumen\" >Difference Between Soft and Hard 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\/what-is-soft-bitumen\/#Price_of_Soft_Bitumen\" >Price of Soft 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\/what-is-soft-bitumen\/#Purchasing_Soft_Bitumen\" >Purchasing Soft Bitumen<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_Soft_Bitumen\"><\/span>What is Soft Bitumen?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<blockquote><strong><em>Soft asphalt<\/em><\/strong> is a type of bitumen that becomes liquid at lower temperatures compared to standard bitumen products, making it more flexible. Due to its <strong><em>high adhesion and flexibility<\/em><\/strong>, this bitumen is suitable for projects that require <strong><em>resistance to temperature fluctuations and pressure changes<\/em><\/strong>.<\/blockquote>\r\n<p><span style=\"background-color: #99ccff;\">Soft bitumen typically performs better <strong><em>at lower temperatures<\/em><\/strong> and is designed for regions with <strong><em>cold climates<\/em><\/strong>. It easily blends with other materials and is used in <strong><em>asphalt production and protective coatings<\/em><\/strong>.<\/span> <span style=\"background-color: #99ccff;\">Also due to its unique molecular structure, it effectively resists cracking caused by temperature fluctuations.<\/span> In this <strong><em>IranETrade<\/em><\/strong> blog post, a specialized source for bitumen pricing, we will further explore this topic.<\/p>\r\n<p>(Click to know <a href=\"https:\/\/iranetrade.com\/blog\/what-is-bitumen\/\" target=\"_blank\" rel=\"noopener\"><em><strong>the types of bitumen<\/strong><\/em><\/a>.)<\/p>\r\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3703\" src=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/02\/what-is-soft-bitumen-6.jpg\" alt=\"introduction of Soft Bitumen\" width=\"500\" height=\"400\" srcset=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/02\/what-is-soft-bitumen-6.jpg 500w, https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/02\/what-is-soft-bitumen-6-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"Types_of_Soft_Bitumen\"><\/span>Types of Soft Bitumen<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p><span style=\"background-color: #99ccff;\">Soft bitumen has <strong><em>three main types: bitumen emulsion, blown bitumen, and bituminous mixture<\/em><\/strong> and each has its unique properties and applications.<\/span> Below, we will discuss them in more detail.<\/p>\r\n<h3><span class=\"ez-toc-section\" id=\"1_Bitumen_Emulsion\"><\/span>1. Bitumen Emulsion<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<p><a href=\"https:\/\/iranetrade.com\/blog\/bitumen-emulsion\/\" target=\"_blank\" rel=\"noopener\"><strong><em>Soft bitumen emulsion<\/em><\/strong><\/a> is produced by adding water and an emulsifier. Due to its <strong><em>ease of use and less need for heating<\/em><\/strong>, this type of bitumen has many applications in road construction projects and producing cold asphalt.<\/p>\r\n<h3><span class=\"ez-toc-section\" id=\"2_Blown_Bitumen\"><\/span>2. Blown Bitumen<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<p><a href=\"https:\/\/iranetrade.com\/blog\/oxidized-bitumen\/\" target=\"_blank\" rel=\"noopener\"><strong><em>Soft-blown bitumen<\/em><\/strong><\/a> is produced by passing hot air through molten bitumen. This process <strong><em>enhances soft bitumen\u2019s heat resistance and improves its adhesive properties<\/em><\/strong>. Blown bitumen has wide usage in waterproofing and production of industrial products.<\/p>\r\n<h3><span class=\"ez-toc-section\" id=\"3_Cutback_Bitumen\"><\/span>3. Cutback Bitumen<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<p><a href=\"https:\/\/iranetrade.com\/blog\/cutback-bitumen\/\" target=\"_blank\" rel=\"noopener\">Cutback bitumen<\/a> is produced by <strong><em>mixing bitumen with petroleum solvents<\/em><\/strong>. This type of soft bitumen dries quickly and is good for use on surfaces that require quick coverage.<\/p>\r\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3705\" src=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/02\/what-is-soft-bitumen-7.jpg\" alt=\"three main types Soft Bitumen\" width=\"500\" height=\"400\" srcset=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/02\/what-is-soft-bitumen-7.jpg 500w, https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/02\/what-is-soft-bitumen-7-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"Features_and_Technical_Specifications_of_Soft_Bitumen\"><\/span>Features and Technical Specifications of Soft Bitumen<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p>Each type of bitumen has its characteristics and specifications. Petroleum-based bitumen products generally include <strong><em>cutback bitumen, bitumen emulsion, and penetration-grade bitumen<\/em><\/strong>. <span style=\"background-color: #99ccff;\">The <strong><em>penetration grade of soft bitumen<\/em><\/strong> typically ranges <strong><em>between 60 to 300<\/em><\/strong>, which makes it highly valued for <strong><em>strong adhesion and water resistance<\/em><\/strong>.<\/span> <span style=\"background-color: #99ccff;\">Also, another key feature of soft asphalt is its high resistance to cold temperatures. In general, the main features and specifications of soft asphalt include the following:<\/span><\/p>\r\n<ul>\r\n<li><span style=\"background-color: #99ccff;\"><strong><em>Low Viscosity<\/em><\/strong>: Usable at lower temperatures<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\"><strong><em>High Flexibility<\/em><\/strong>: Resistant to cracking<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\"><em><strong>Strong Adhesion<\/strong><\/em>: Ensures a firm bond with other materials<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\"><strong><em>Thermal Resistance<\/em><\/strong>: Maintains properties under varying temperatures<\/span><\/li>\r\n<\/ul>\r\n<p>(Click to learn about <a href=\"https:\/\/iranetrade.com\/blog\/what-is-mc-bitumen\/\" target=\"_blank\" rel=\"noopener\"><em><strong>MC bitumen<\/strong><\/em><\/a>.)<\/p>\r\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3707\" src=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/02\/what-is-soft-bitumen-8.jpg\" alt=\"Features of Soft Bitumen\" width=\"500\" height=\"400\" srcset=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/02\/what-is-soft-bitumen-8.jpg 500w, https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/02\/what-is-soft-bitumen-8-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"Applications_of_Soft_Bitumen\"><\/span>Applications of Soft Bitumen<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p><span style=\"background-color: #99ccff;\">Soft bitumen has specific applications because of its characteristics. Some of its most important uses include:<\/span><\/p>\r\n<ul>\r\n<li><span style=\"background-color: #99ccff;\">Excellent adhesion and water resistance: This makes it <strong><em>suitable for waterproofing<\/em><\/strong>.<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\">Road construction: Used <strong><em>as an adhesive in both cold and hot asphalt<\/em><\/strong>.<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\"><em><strong>Waterproofing in buildings and industrial structures: Prevents water absorption<\/strong><\/em>.<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\"><strong><em>Protection of metal and concrete surfaces<\/em><\/strong>: Guards against corrosion.<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\">Use in manufacturing industries: As <strong><em>a raw material for producing bituminous products<\/em><\/strong> like roofing felt.<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\"><strong><em>Fuel for industrial furnaces<\/em><\/strong>.<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\">Application in oil and gas industries: <em><strong>Prevents corrosion and decay in pipelines<\/strong><\/em>.<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\"><strong><em>As an additive in plastic parts<\/em><\/strong>.<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\">Fire retardant in safety material production.<\/span><\/li>\r\n<li><span style=\"background-color: #99ccff;\">In <em><strong>the automotive industry<\/strong><\/em>: Used in tyre production and as a lubricant.<\/span><\/li>\r\n<\/ul>\r\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3709\" src=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/02\/what-is-soft-bitumen-9.jpg\" alt=\"Applications of Soft Bitumen\" width=\"500\" height=\"400\" srcset=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/02\/what-is-soft-bitumen-9.jpg 500w, https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/02\/what-is-soft-bitumen-9-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"Difference_Between_Soft_and_Hard_Bitumen\"><\/span>Difference Between Soft and Hard Bitumen<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p><span style=\"background-color: #99ccff;\"><strong><em>The main difference between soft bitumen and hard bitumen<\/em><\/strong> is in <strong><em>their physical properties and applications<\/em><\/strong>. These two types of bitumen have different softening points, flexibility, and temperature resistance<\/span>, which we will explain further.<\/p>\r\n<ul>\r\n<li><strong><em>Viscosity or Softening Point<\/em><\/strong>: Soft asphalt has lower viscosity compared to hard bitumen. This trait makes soft asphalt suitable for use in cold temperatures, whereas hard bitumen performs better at higher temperatures.<\/li>\r\n<li><strong><em>Flexibility<\/em><\/strong>: Soft asphalt is more flexible and withstands temperature fluctuations better, especially in cold and freezing regions. On the other hand, hard bitumen is more resistant to pressure and high temperatures.<\/li>\r\n<li><strong><em>Application<\/em><\/strong>: Soft asphalt is suitable for use in cold regions for waterproofing and asphalt coatings. However, hard bitumen is mainly used in tropical regions for airport runways and structures exposed to direct sunlight.<\/li>\r\n<\/ul>\r\n<p>(For more information about <a href=\"https:\/\/iranetrade.com\/blog\/prime-coat-vs-tack-coat\/\" target=\"_blank\" rel=\"noopener\"><strong><em>The Prime Coat And Tack Coat Difference<\/em><\/strong><\/a>, see the blog post.)<\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"Price_of_Soft_Bitumen\"><\/span>Price of Soft Bitumen<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p>(Click to find out about the <a href=\"https:\/\/iranetrade.com\/bitumen-price\" target=\"_blank\" rel=\"noopener\"><em><strong>online bitumen price<\/strong><\/em><\/a>.)<\/p>\r\n<p><strong><em>The price of soft bitumen<\/em><\/strong> depends on various factors such as <strong><em>bitumen type, purity level, softening point, viscosity, solubility, flammability, and other characteristics<\/em><\/strong>. Additionally, <strong><em>fluctuations in the oil market, exchange rates, import and export volumes, and supply and demand<\/em><\/strong> can also affect its final price. Therefore, for exact pricing details, you can contact our team at Iran ETrade.<\/p>\r\n<h2><span class=\"ez-toc-section\" id=\"Purchasing_Soft_Bitumen\"><\/span>Purchasing Soft Bitumen<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p>As mentioned before, various factors influence <strong><em>the pricing of soft bitumen<\/em><\/strong> which are essential to consider when purchasing this bitumen. Therefore, make sure to evaluate <strong><em>the quality, safety, price, and intended application of the bitumen<\/em><\/strong> before its purchase. For detailed information, you can contact the Iran ETrade team.<\/p>\r\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3711\" src=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/02\/what-is-soft-bitumen-10.jpg\" alt=\"how to purchas Soft Bitumen\" width=\"500\" height=\"400\" srcset=\"https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/02\/what-is-soft-bitumen-10.jpg 500w, https:\/\/iranetrade.com\/blog\/wp-content\/uploads\/2025\/02\/what-is-soft-bitumen-10-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\r\n<p>&nbsp;<\/p>\r\n<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bitumen\" target=\"_blank\" rel=\"nofollow noopener\"><strong>reference<\/strong><\/a><\/p>\r\n<p style=\"direction: rtl;\"><a class=\"btn-t fixmob-m7 mainbtn-n5 bicn-m7 bxl-m7 js-bprce-n5\" href=\"https:\/\/iranetrade.com\/bitumen-price\" target=\"_blank\" rel=\"nofollow noopener\">Bitumen Price<\/a><\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>Soft bitumen is a type of bitumen that, due to its low viscosity and high flexibility, can be used at lower temperatures than hard bitumen. It is derived from petroleum products and has many uses in industries such as road construction and waterproofing because of its adhesive and waterproof properties. This bitumen is particularly suitable [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":3430,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3682","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 Soft Bitumen: Introduction + Applications in Industry<\/title>\n<meta name=\"description\" content=\"Soft bitumen has high flexibility and adhesion, making it suitable for cold regions. 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