{"id":1222,"date":"2023-11-28T18:52:33","date_gmt":"2023-11-28T09:52:33","guid":{"rendered":"https:\/\/www.durastream.com\/en\/ja\/?page_id=1222"},"modified":"2025-12-11T16:37:14","modified_gmt":"2025-12-11T07:37:14","slug":"heat-resistance","status":"publish","type":"page","link":"https:\/\/www.durastream.com\/en\/product-comparison\/other-materials\/heat-resistance\/","title":{"rendered":"Heat resistance"},"content":{"rendered":"<div  class=\"frame pt-0 pb-0\">\r\n\t\t<div class=\"hero-flame-single\" style=\"background-image:url(https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2023\/12\/general-hero1.jpg);\">\r\n\t\t\t<div class=\"hero-flame-single-filter\">\r\n\t\t\t\t<div class=\"hero-title container\">\r\n\t\t\t\t\t\tStrengths of CPVC &#8211; Heat resistance\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n<\/div>\n\n<div  class=\"frame pt-3 pb-0\">\r\n\t<div class=\"container\">\r\n    \t<\/div>\r\n<\/div>\n\n<div  class=\" spacer spacer-m\"><\/div>\r\n\n\n<div class=\"container\">\r\n\t\n<h2  class=\"title-l2\"><span>Heat Deflection Temperature: One of the Top Advantages of CPVC<\/span><\/h2>\r\n\n\n\n<p>One of the benefits of CPVC over competitive materials is its superior heat resistance.<\/p>\n\n\n\n<p>Heat Deflection Temperature (HDT) is a very important metric, as it indicates the temperature at which the material will become soft enough to deflect even a small mechanical load. If the temperature stays above HDT, permanent deflection will occur. CPVC generally is used in hot temperature environments since it has one of the highest HDTs among competitive plastics. The table below shows the heat deflection temperature (HDT) as compared to other plastics. While the exact values will differ due to grade and manufacturer, the general trend will remain true: CPVC compound has one of the highest HDTs in the plastics industry.<\/p>\n\n\n<div  class=\" spacer spacer-m\"><\/div>\r\n\n\n<div  class=\"col2-wrapper  customcol-items-start\">\r\n\t\t\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><div  class=\" spacer spacer-s\"><\/div>\r\n\n\n<div  class=\"iframe-box\">\r\n\t<div class=\"text-center\"><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/8cVpV6OU1q8?loop=1&amp;playlist=8cVpV6OU1q8\" title=\"Durastream CPVC versus PPR and PVC\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\r\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"968\" height=\"886\" src=\"https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2025\/12\/image-9.png\" alt=\"Strengths of CPVC - Heat resistance1\" class=\"wp-image-3397\" srcset=\"https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2025\/12\/image-9.png 968w, https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2025\/12\/image-9-300x275.png 300w, https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2025\/12\/image-9-768x703.png 768w\" sizes=\"auto, (max-width: 968px) 100vw, 968px\" \/><\/figure>\n<\/div>\n<\/div>\n\n<\/div>\r\n\n\n<div  class=\" spacer spacer-s\"><\/div>\r\n\n\n\n<p>References for HDT data:<br>SEKISUI internal test data 2. The Chemical Society of Japan<\/p>\n\n\n\n<p>The HDT improves in correlation with the chlorine content in CPVC compound. As can be seen in the chart below, as the chlorine content increases, so does the HDT. SEKISUI produces a wide variety of CPVC compounds to meet the various needs of each application.<\/p>\n\n\n<div  class=\" spacer spacer-m\"><\/div>\r\n\n\n<div  class=\"col2-wrapper  customcol-items-start\">\r\n\t\t\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1084\" height=\"942\" src=\"https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2025\/12\/image-2.png\" alt=\"Strengths-of-CPVC-Heat-resistance3\" class=\"wp-image-3398\" srcset=\"https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2025\/12\/image-2.png 1084w, https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2025\/12\/image-2-300x261.png 300w, https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2025\/12\/image-2-1024x890.png 1024w, https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2025\/12\/image-2-768x667.png 768w\" sizes=\"auto, (max-width: 1084px) 100vw, 1084px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"686\" height=\"720\" src=\"https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2023\/12\/Strengths-of-CPVC-Heat-resistance3.png\" alt=\"Strengths-of-CPVC-Heat-resistance3\" class=\"wp-image-1519\" srcset=\"https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2023\/12\/Strengths-of-CPVC-Heat-resistance3.png 686w, https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2023\/12\/Strengths-of-CPVC-Heat-resistance3-286x300.png 286w\" sizes=\"auto, (max-width: 686px) 100vw, 686px\" \/><\/figure>\n<\/div>\n<\/div>\n\n<\/div>\r\n\n\n<div  class=\" spacer spacer-m\"><\/div>\r\n\n\n<h2  class=\"title-l2\"><span>Heat resistance<\/span><\/h2>\r\n\n\n<div  class=\"col2-wrapper  customcol-items-start\">\r\n\t\t\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>The heat deflection temperature is 10\u2103 to 40\u2103 higher than that of PVC<\/p>\n\n\n<h5  class=\"text-left title-l5 \">Correlation between degree of chlorination and HDT(Heat Deflection Temperature)<\/h5>\n\n<div  class=\" spacer spacer-s\"><\/div>\r\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"454\" src=\"https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2023\/12\/Strengths-of-CPVC-Heat-resistance4.png\" alt=\"Strengths-of-CPVC-Heat-resistance4\" class=\"wp-image-1520\" srcset=\"https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2023\/12\/Strengths-of-CPVC-Heat-resistance4.png 1000w, https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2023\/12\/Strengths-of-CPVC-Heat-resistance4-300x136.png 300w, https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2023\/12\/Strengths-of-CPVC-Heat-resistance4-768x349.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Superior thermal contraction properties at high temperatures due to improved heat resistance.<\/p>\n\n\n<h5  class=\"text-left title-l5 \">Correlation between degree of chlorination and thermal contraction(Reference: measured using pressed sheet)<\/h5>\n\n<div  class=\" spacer spacer-s\"><\/div>\r\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"392\" src=\"https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2023\/12\/Strengths-of-CPVC-Heat-resistance5.png\" alt=\"Strengths-of-CPVC-Heat-resistance5\" class=\"wp-image-1521\" srcset=\"https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2023\/12\/Strengths-of-CPVC-Heat-resistance5.png 1000w, https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2023\/12\/Strengths-of-CPVC-Heat-resistance5-300x118.png 300w, https:\/\/www.durastream.com\/en\/wp-content\/uploads\/sites\/5\/2023\/12\/Strengths-of-CPVC-Heat-resistance5-768x301.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/div>\n<\/div>\n\n<\/div>\r\n\n\n<div  class=\" spacer spacer-m\"><\/div>\r\n\n\n<div  class=\"quote-box\">\r\n\t<h3 class=\"quote-box-title\">Contact<\/h3>\r\n\t<p class=\"quote-box-text text-center\">Click here for product inquiries and sample requests.<\/p>\r\n\t<div class=\"text-center\"><a href=\"\/en\/contact\/\"><button class=\"btn btn-arrow-right hovergradient freetext size-m\"><span>Contact<\/span><\/button><\/a><\/div>\r\n<\/div>\n\n<div  class=\" spacer spacer-m\"><\/div>\r\n\n<\/div>\r\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"parent":1207,"menu_order":27,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1222","page","type-page","status-publish","hentry"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.durastream.com\/en\/wp-json\/wp\/v2\/pages\/1222","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.durastream.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.durastream.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.durastream.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.durastream.com\/en\/wp-json\/wp\/v2\/comments?post=1222"}],"version-history":[{"count":28,"href":"https:\/\/www.durastream.com\/en\/wp-json\/wp\/v2\/pages\/1222\/revisions"}],"predecessor-version":[{"id":3399,"href":"https:\/\/www.durastream.com\/en\/wp-json\/wp\/v2\/pages\/1222\/revisions\/3399"}],"up":[{"embeddable":true,"href":"https:\/\/www.durastream.com\/en\/wp-json\/wp\/v2\/pages\/1207"}],"wp:attachment":[{"href":"https:\/\/www.durastream.com\/en\/wp-json\/wp\/v2\/media?parent=1222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}