{"id":15685,"date":"2024-09-22T17:13:02","date_gmt":"2024-09-22T13:43:02","guid":{"rendered":"https:\/\/imenpol.com\/blog\/en\/?p=15685"},"modified":"2025-09-16T11:47:11","modified_gmt":"2025-09-16T08:17:11","slug":"polyurethane-pipe-insulation-2","status":"publish","type":"post","link":"https:\/\/imenpol.com\/blog\/en\/educational\/polyurethane-pipe-insulation-2\/","title":{"rendered":"Pipe insulation material"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"15685\" class=\"elementor elementor-15685\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-61edf14 e-flex e-con-boxed e-con e-parent\" data-id=\"61edf14\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7191e04 content-table elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"7191e04\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h2&quot;,&quot;h3&quot;],&quot;container&quot;:&quot;.table-contents&quot;,&quot;exclude_headings_by_selector&quot;:[],&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;marker_view&quot;:&quot;numbers&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h6 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of contents\t\t\t<\/h6>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__7191e04\" aria-expanded=\"true\" aria-label=\"Open table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__7191e04\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__7191e04\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<svg class=\"elementor-toc__spinner eicon-animation-spin e-font-icon-svg e-eicon-loading\" aria-hidden=\"true\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M500 975V858C696 858 858 696 858 500S696 142 500 142 142 304 142 500H25C25 237 238 25 500 25S975 237 975 500 763 975 500 975Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-62d24ad  table-contents e-flex e-con-boxed e-con e-parent\" data-id=\"62d24ad\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a6889dc elementor-widget elementor-widget-text-editor\" data-id=\"a6889dc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The outer surface of the pipe should be free from oil, corrosion, moisture and frost at the time of insulation. Nowadays, polymer coatings are the standard solutions for <a title=\"pipe insulation\" href=\"\/en\/product\/pipe-insulation-foam\/\" target=\"_blank\" rel=\"noopener\">pipe insulation<\/a>. The appropriate insulation of hot- and cold-water and central-heating pipes protects not only against heat losses, but also against mechanical damage. The properties of the insulation materials depend on their structure, the raw materials used and the manufacturing process.<\/p>\n<p>Pipe insulation protects not only against heat-escape, but also from condensation on the pipe&#8217;s surface in the event of cold-water flow. It prevents water-vapor condensation, and mold and fungi formation. Furthermore, in the case of outdoor systems, it prevents freezing, which leads to a blocking of the flow in the system.<\/p>\n<p>The appropriate insulation of hot- and cold-water and central-heating pipes protects not only against heat losses, but also against mechanical damage. In the case of floor pipes, it also reduces transmission-heat losses, causing a change in the temperature of the media supplied to heat receivers.<\/p>\n<h2><strong>What kind of material works best for pipe insulation?<\/strong><\/h2>\n<p>Foam tubing, available in different sizes, designs, and structures, is used for pipe protection. The most-important factor to take into account when selecting foam tubing is the material used to produce it. This material-type&#8217;s thermal insulators are usually made of porous materials \u2014 glass or mineral wool, rubber, polystyrene, <a title=\"polyurethane\" href=\"\/en\/polyurethane\" target=\"_blank\" rel=\"noopener\">polyurethane<\/a>, or polyethylene foam.<\/p>\n<p>Among different polymers, polyurethane pipe coating has proven to be a considerably popular.\u00a0R-value is a unit of measurement that refers to the ability of a given type of insulation to prevent heat transfer. The calculation is based on the thickness and thermal conductivity of the material in question. The higher the R-value is, the better the insulation will perform and polyurethane foam insulation is known to have a higher R-value than most other types of insulation.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4b0637c section pd-0 pb-0 pt-0 e-flex e-con-boxed e-con e-parent\" data-id=\"4b0637c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-c26477b e-con-full minimal-cta e-flex e-con e-child\" data-id=\"c26477b\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-5eeb41a e-con-full e-flex e-con e-child\" data-id=\"5eeb41a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-631239f section-subtitle elementor-widget__width-inherit elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"631239f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">After sales service<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0027087 section-title elementor-widget__width-inherit elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"0027087\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:400}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">For price inquiries and purchasing liquid polyurethane for polyurethane foam production, please contact Imen Polymer Chemie Company.<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-969b89e elementor-widget__width-initial elementor-absolute elementor-widget elementor-widget-image\" data-id=\"969b89e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_position&quot;:&quot;absolute&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/imenpol.hinzaco.com\/wp-content\/uploads\/2024\/03\/hexagon-cta.svg\" title=\"\" alt=\"\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-848be62 e-con-full button-minimal-cta e-flex e-con e-child\" data-id=\"848be62\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5a10869 button elementor-widget elementor-widget-button\" data-id=\"5a10869\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"\/en\/contact\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Send massage<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f113685 button elementor-widget elementor-widget-button\" data-id=\"f113685\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"tel:%20+982157325\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Call Us<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7974c55  table-contents e-flex e-con-boxed e-con e-parent\" data-id=\"7974c55\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-13b8889 elementor-widget elementor-widget-text-editor\" data-id=\"13b8889\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>On the other hand, many insulation materials, such as mineral wool and cellulose, tend to sag or settle over time. This phenomenon can cause thermal bridges in areas where there is no longer enough insulation. The building then becomes more susceptible to heat loss. Applying polyurethane foam\u00a0provides seamless insulation on pipes, because the insulation is airtight and waterproof, it can effectively prevent the infiltration of air and water.<\/p>\n<p>This material is resistant in the temperature range -50\u00b0C to 135\u00b0C, and has a low heat-transfer coefficient. Tubing made of polyurethane foam is distinguished by its high level of resistance to chemicals. Consequently, polyurethane-foam tubing is most often used to insulate central heating and domestic-water pipelines. Such a thermal insulator is rigid, and perfectly protects pipes against contact with the ground, guarding against plaster damage. Moreover, its application eliminates the noise associated with the system\u2019s operation. Thus, foam tubing prevents heat-escape and eliminates cost increases. It, moreover, improves safety, and provides greater comfort for residents.<\/p>\n<p>Due to the excellent insulation properties of rigid polyurethane foam, the lowest insulation thickness is needed compared to other materials. No insulation offers better long-term energy savings than rigid polyurethane foam. Also, high mechanical strength has made the foam as an ideal pipe insulator; the foam is manufactured in various standard shapes.<\/p>\n<p>The use of polyurethane foam as the insulation layer of directly buried pipelines can not only play a role in heat preservation and insulation, but also effectively prevent the infiltration of corrosive liquids and gases.<\/p>\n<p>In fact, polyurethane foam pipe insulation is commonly a two-layer coating consisting of a foam-like plastic heat insulator &#8211; polyurethane foam, covering the pipe and the outer shell of high-density polyethylene (HDPE) or aluminum foil as a protection layer.\u00a0But in some applications, the pipe can be without shell (protective layer). The assembled pipe shell has great heat retention properties, while the polyurethane foam and the covering prevent the accumulation of condensation water between the pipe and the pipe shell. A simple schematic of insulated pipe with polyurethane foam is represented below.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e19b83f e-flex e-con-boxed e-con e-parent\" data-id=\"e19b83f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-56aaed6 elementor-widget elementor-widget-image\" data-id=\"56aaed6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1403\" height=\"976\" src=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/polyurethane-pipe-insulation-1.jpg\" class=\"attachment-full size-full wp-image-15691\" alt=\"polyurethane foam as pipe insulation\" srcset=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/polyurethane-pipe-insulation-1.jpg 1403w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/polyurethane-pipe-insulation-1-300x209.jpg 300w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/polyurethane-pipe-insulation-1-1024x712.jpg 1024w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/polyurethane-pipe-insulation-1-768x534.jpg 768w\" sizes=\"(max-width: 1403px) 100vw, 1403px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9dacedc elementor-widget elementor-widget-image\" data-id=\"9dacedc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1403\" height=\"976\" src=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/insulating-pipes-with-polyurethane-foam.jpg\" class=\"attachment-full size-full wp-image-15690\" alt=\"Polyurethane pipe insulation foam\" srcset=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/insulating-pipes-with-polyurethane-foam.jpg 1403w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/insulating-pipes-with-polyurethane-foam-300x209.jpg 300w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/insulating-pipes-with-polyurethane-foam-1024x712.jpg 1024w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/insulating-pipes-with-polyurethane-foam-768x534.jpg 768w\" sizes=\"(max-width: 1403px) 100vw, 1403px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-998c302  table-contents e-flex e-con-boxed e-con e-parent\" data-id=\"998c302\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f99565b elementor-widget elementor-widget-text-editor\" data-id=\"f99565b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The left figure is covered with HDPE and the right one is covered with aluminum foil.<\/p>\n<h2><strong>Advantages of polyurethane pipe coating<\/strong><\/h2>\n<p>Generally, the advantageous of polyurethane pipe insulation are as follows:<\/p>\n<ul>\n<li>They can be easily applied\/installed<\/li>\n<li>They have strong resistance against abrasions and extreme temperature<\/li>\n<li>They are very light, and strengthens the pipe<\/li>\n<li>They have excellent dimensional stability; once cured, its volume will not increase or decrease no matter what conditions it is exposed to<\/li>\n<li>Compared to other pipe insulators, due to the fact that they are resistant to humidity, they can prevent the growth and development of microorganisms<\/li>\n<li>They have desired and uniform density<\/li>\n<li>They have close cell content of over 90%<\/li>\n<li>The foam has excellent thermal insulation properties together with compressive strength<\/li>\n<li>The insulation reduces the process of corrosion of a metal system (pipes) for about tens of times<\/li>\n<li>The foam\u2019s service life is more than 30 years<\/li>\n<li>It is environmentally friendly and safe after hardening<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1da597d e-flex e-con-boxed e-con e-parent\" data-id=\"1da597d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ad9802f elementor-widget elementor-widget-image\" data-id=\"ad9802f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1198\" height=\"1317\" src=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/pipe-insulation.jpg\" class=\"attachment-full size-full wp-image-15692\" alt=\"Advantages of polyurethane pipe coating\" srcset=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/pipe-insulation.jpg 1198w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/pipe-insulation-273x300.jpg 273w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/pipe-insulation-931x1024.jpg 931w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/pipe-insulation-768x844.jpg 768w\" sizes=\"(max-width: 1198px) 100vw, 1198px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9b6612f  table-contents e-flex e-con-boxed e-con e-parent\" data-id=\"9b6612f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3288091 elementor-widget elementor-widget-text-editor\" data-id=\"3288091\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2><strong>Methods of applying foam insulation to pipe systems<\/strong><\/h2><p>There are two main production processes for polyurethane insulating pipes:<\/p><ol><li>Pipe-in-pipe method<\/li><li>Foam spray method<\/li><\/ol><p>Each method has its own cons and pros, we are going to discuss them in this article.<\/p><ul><li>Pipe-in-pipe method<\/li><\/ul><p>The \u201cpipe-in-pipe method\u201d is suitable for various pipe diameters, and the formation and eccentricity of the insulation layer are easy to control. The method is a continuous process where the polyurethane is poured into a moving casting mould, and the material flows around the moving pipe. Then, the PE outer casing is extruded in place. For easily insulation of the pipe connections cut one side of the pipe on longitude.<\/p><p>Also, it can be said that the pipe sections come in two halves, cut from the PU foam blocks. Pipe sections are cut based on the required pipe dimension and insulation thickness the customer so desires. Thus, in this method, insulated pipes can be prefabricated, which is one of their key advantages, allowing for quick installation, and its high insulation performance, where long term temperature resistance is of critical importance. Moreover, there is consistent density of insulation through the entire length\u00a0of the pipe but, comparing to the spray method, it is a time-consuming process that requires a specific adhesive for applying the insulation.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e9296b1 e-flex e-con-boxed e-con e-parent\" data-id=\"e9296b1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bdd5841 elementor-widget elementor-widget-image\" data-id=\"bdd5841\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"865\" height=\"448\" src=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/pipe-in-pipe.jpg\" class=\"attachment-full size-full wp-image-15693\" alt=\"Methods of applying foam insulation to pipe systems\" srcset=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/pipe-in-pipe.jpg 865w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/pipe-in-pipe-300x155.jpg 300w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/pipe-in-pipe-768x398.jpg 768w\" sizes=\"(max-width: 865px) 100vw, 865px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-15ce28e  table-contents e-flex e-con-boxed e-con e-parent\" data-id=\"15ce28e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-69e3d0a elementor-widget elementor-widget-text-editor\" data-id=\"69e3d0a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul>\n<li>Foam spray method<\/li>\n<\/ul>\n<p>\u201cFoam spray method\u201d is a process, using foam spraying equipment to spray polyurethane foam on the surface of steel pipe directly. However, in this process, the foam density is uneven, and it is difficult to make a large diameter outer protective tube. Furthermore, due to the way of applying the insulation, there is possibility of air gap between pipes and insulation so, cladding and insulation can be easily damaged. In most cases, the process is done without applying a protective layer on the insulation.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-86a2d07 e-flex e-con-boxed e-con e-parent\" data-id=\"86a2d07\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d5f6b9c elementor-widget elementor-widget-image\" data-id=\"d5f6b9c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"624\" height=\"254\" src=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/Picture6.jpg\" class=\"attachment-full size-full wp-image-15694\" alt=\"polyurethane Foam spray method\" srcset=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/Picture6.jpg 624w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/Picture6-300x122.jpg 300w\" sizes=\"(max-width: 624px) 100vw, 624px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-71e6f33  table-contents e-flex e-con-boxed e-con e-parent\" data-id=\"71e6f33\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-326836b elementor-widget elementor-widget-text-editor\" data-id=\"326836b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In conclusion, it can be noted that polyurethane foam for pipe insulation is available in the form of pre-fabricated and spray foam. Although the foam has a lot of advantageous, it is only accepted for cryogenic applications, where pipeline insulation is not exposed to high temperatures. However, at PIR is used when high temperatures are applied. PUR and PIR are close in chemical composition but vary in performance.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3f7c3f1 section related-products e-con-full e-flex e-con e-parent\" data-id=\"3f7c3f1\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-717b431 section-subtitle elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"717b431\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Some of<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2048a6d section-title elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"2048a6d\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:500}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Polyurethane Products<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-740c5a4 e-con-full e-flex e-con e-child\" data-id=\"740c5a4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fe3e1d5 elementor-widget__width-initial related-product elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"fe3e1d5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"\/en\/product\/spray-insulation-heat\/\" target=\"_blank\" tabindex=\"-1\"><img decoding=\"async\" src=\"https:\/\/imenpol.com\/blog\/wp-content\/uploads\/2024\/03\/\u0641\u0648\u0645-\u0639\u0627\u06cc\u0642-\u062d\u0631\u0627\u0631\u062a-1.jpg\" title=\"\" alt=\"\u0641\u0648\u0645 \u0639\u0627\u06cc\u0642 \u062d\u0631\u0627\u0631\u062a\" loading=\"lazy\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><div class=\"elementor-image-box-title\"><a href=\"\/en\/product\/spray-insulation-heat\/\" target=\"_blank\">Heat insulation spray<\/a><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-379e537 elementor-widget__width-initial related-product elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"379e537\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"\/en\/product\/insulation-refrigerator\/\" target=\"_blank\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"1080\" height=\"567\" src=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/\u0639\u0627\u06cc\u0642-\u06cc\u062e\u0686\u0627\u0644.jpg\" class=\"attachment-full size-full wp-image-17210\" alt=\"refrigerator insulation\" srcset=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/\u0639\u0627\u06cc\u0642-\u06cc\u062e\u0686\u0627\u0644.jpg 1080w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/\u0639\u0627\u06cc\u0642-\u06cc\u062e\u0686\u0627\u0644-300x158.jpg 300w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/\u0639\u0627\u06cc\u0642-\u06cc\u062e\u0686\u0627\u0644-1024x538.jpg 1024w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/\u0639\u0627\u06cc\u0642-\u06cc\u062e\u0686\u0627\u0644-768x403.jpg 768w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><div class=\"elementor-image-box-title\"><a href=\"\/en\/product\/insulation-refrigerator\/\" target=\"_blank\">refrigerator insulation<\/a><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-93d186b elementor-widget__width-initial related-product elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"93d186b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"\/en\/product\/pipe-insulation-foam\/\" target=\"_blank\" tabindex=\"-1\"><img decoding=\"async\" src=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/12\/\u0639\u0627\u06cc\u0642-\u0644\u0648\u0644\u0647.jpg\" title=\"\" alt=\"Pipe insulation\" loading=\"lazy\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><div class=\"elementor-image-box-title\"><a href=\"\/en\/product\/pipe-insulation-foam\/\" target=\"_blank\">Pipe insulation<\/a><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Proper pipe insulation prevents energy loss, mechanical damage, and moisture buildup. Polyurethane foam, with its high R-value and excellent thermal and mechanical resistance, is one of the best choices for pipe insulation. In this article, you will learn about the benefits and applications of polyurethane foam in pipe insulation.<\/p>\n","protected":false},"author":4,"featured_media":15687,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[34,85],"class_list":["post-15685","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-educational","tag-pipe-insulation-foam","tag-polyurethane-foam-articles"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Pipe insulation material - Imen Polymer Chemie<\/title>\n<meta name=\"description\" content=\"Learn about polyurethane foam, the ultimate pipe insulation material. 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