{"id":26347,"date":"2025-05-24T08:34:25","date_gmt":"2025-05-24T08:34:25","guid":{"rendered":"https:\/\/jonoubgypsum.com\/en\/?p=26347"},"modified":"2026-03-12T08:33:24","modified_gmt":"2026-03-12T08:33:24","slug":"calcium-sulfate-fire-resistance","status":"publish","type":"post","link":"https:\/\/jonoubgypsum.com\/en\/calcium-sulfate-fire-resistance\/","title":{"rendered":"Calcium Sulfate Fire Resistance: A Sustainable Solution for Fire Protection in Construction"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"26347\" class=\"elementor elementor-26347\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8de1b19 e-flex e-con-boxed e-con e-parent\" data-id=\"8de1b19\" 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-353d7ae elementor-widget elementor-widget-image\" data-id=\"353d7ae\" 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=\"800\" height=\"450\" src=\"https:\/\/jonoubgypsum.com\/en\/wp-content\/uploads\/2025\/05\/fire-resistance.jpg\" class=\"attachment-large size-large wp-image-26348\" alt=\"Calcium Sulfate Fire Resistance: A Sustainable Solution for Fire Protection in Construction\" srcset=\"https:\/\/jonoubgypsum.com\/en\/wp-content\/uploads\/2025\/05\/fire-resistance.jpg 800w, https:\/\/jonoubgypsum.com\/en\/wp-content\/uploads\/2025\/05\/fire-resistance-300x169.jpg 300w, https:\/\/jonoubgypsum.com\/en\/wp-content\/uploads\/2025\/05\/fire-resistance-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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-e765e96 elementor-widget elementor-widget-text-editor\" data-id=\"e765e96\" 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 style=\"text-align: justify;\">Looking for <a href=\"https:\/\/jonoubgypsum.com\/en\/comparison-of-gypsum-with-other-materials\/\"><strong>fire-resistant materials<\/strong><\/a> for construction or composites? Discover how calcium sulfate offers natural fire resistance, safety, and sustainability \u2014 all in one mineral.<\/p>\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-ecda642 elementor-widget elementor-widget-heading\" data-id=\"ecda642\" data-element_type=\"widget\" data-e-type=\"widget\" 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\">What is Calcium Sulfate and Why is It Fire-Resistant?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-60a0ed4 elementor-widget elementor-widget-text-editor\" data-id=\"60a0ed4\" 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 style=\"text-align: justify;\">Calcium sulfate, commonly found in the form of gypsum (CaSO\u2084\u00b72H\u2082O), is a naturally occurring mineral widely used in the construction industry. But beyond being a core ingredient in drywall and plaster, it\u2019s also a powerful fire-retardant material.<\/p><p style=\"text-align: justify;\">Thanks to its endothermic dehydration, <a href=\"https:\/\/jonoubgypsum.com\/en\/great-calcium-sulfate-properties-and-types\/\">calcium sulfate<\/a> releases water vapor when heated. This vapor absorbs heat and delays the spread of flames, making it a go-to choice for passive fire protection in buildings.<\/p>\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-af6c29f elementor-widget elementor-widget-heading\" data-id=\"af6c29f\" data-element_type=\"widget\" data-e-type=\"widget\" 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\">How Calcium Sulfate Provides Fire Resistance<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-057bea1 elementor-widget elementor-widget-text-editor\" data-id=\"057bea1\" 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 style=\"text-align: justify;\">Here\u2019s how calcium sulfate fire resistance works:<\/p><p style=\"text-align: justify;\">When exposed to high temperatures, gypsum transforms:<\/p><p style=\"text-align: justify;\">CaSO\u2084\u00b72H\u2082O \u2192 CaSO\u2084 + H\u2082O (steam)<\/p><p style=\"text-align: justify;\">This transformation:<\/p><ul style=\"text-align: justify;\"><li>Absorbs heat energy<\/li><li>Releases steam, which insulates nearby materials<\/li><li>Leaves behind a stable, non-flammable barrier<\/li><\/ul><p style=\"text-align: justify;\">This natural defense mechanism allows gypsum-based products to withstand fire longer than untreated materials.<\/p>\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-7bbb33b elementor-widget elementor-widget-heading\" data-id=\"7bbb33b\" data-element_type=\"widget\" data-e-type=\"widget\" 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\">Key Benefits of Using Calcium Sulfate for Fire Protection<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2b98b39 elementor-widget elementor-widget-text-editor\" data-id=\"2b98b39\" 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 style=\"text-align: justify;\">\u2705 Eco-Friendly &amp; Non-Toxic<\/p><p style=\"text-align: justify;\">\u2705 Widely Available and Cost-Effective<\/p><p style=\"text-align: justify;\">\u2705 Tested &amp; Compliant with International Building Codes<\/p><p style=\"text-align: justify;\">\u2705 Compatible with Fire-Rated Construction Systems<\/p><p style=\"text-align: justify;\">Whether used in drywall, partitions, or composite materials, calcium sulfate helps create safer, more resilient buildings.<\/p>\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-9882c42 elementor-widget elementor-widget-heading\" data-id=\"9882c42\" data-element_type=\"widget\" data-e-type=\"widget\" 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\">Fire-Resistant Applications in the Construction Industry<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-834b1bf elementor-widget elementor-widget-text-editor\" data-id=\"834b1bf\" 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 style=\"text-align: justify;\">\ud83d\udd38<strong> Fire-Rated Drywall<\/strong><\/p><p style=\"text-align: justify;\">Gypsum boards, especially Type X or Type C, contain reinforced calcium sulfate and provide up to 2 hours of fire resistance. They\u2019re ideal for residential, commercial, and industrial walls and ceilings.<\/p><p style=\"text-align: justify;\">\ud83d\udd38 <strong>Fireproof Coatings and Compounds<\/strong><\/p><p style=\"text-align: justify;\">Calcium sulfate is often blended with vermiculite to form spray-applied fire-resistive materials (SFRMs) used on steel structures. These coatings delay heat transfer and protect structural integrity during fires.<\/p><p style=\"text-align: justify;\">\ud83d\udd38 <strong>Ceiling and Wall Systems<\/strong><\/p><p style=\"text-align: justify;\">In multi-story buildings and fire zones, gypsum-based systems serve as fire barriers, meeting NFPA and ASTM fire standards.<\/p>\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-7171360 elementor-widget elementor-widget-heading\" data-id=\"7171360\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Use in Polymers and Composites: A Growing Trend<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e4657b5 elementor-widget elementor-widget-text-editor\" data-id=\"e4657b5\" 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 style=\"text-align: justify;\">In plastic and rubber industries, calcium sulfate fillers are being used to:<\/p><ul style=\"text-align: justify;\"><li>Enhance thermal stability<\/li><li>Reduce flammability<\/li><li>Minimize toxic smoke generation<\/li><\/ul><p style=\"text-align: justify;\">These benefits are crucial for electrical casings, automotive interiors, and building insulation materials.<\/p><p><a href=\"https:\/\/jonoubgypsum.com\/en\/exploring-the-uses-of-calcium-sulfate\/\">Read the article about uses of calcium sulfate!<\/a><\/p>\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-2eab91c elementor-widget elementor-widget-heading\" data-id=\"2eab91c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Comparison with Other Fire Retardants<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-139d0cf elementor-widget elementor-widget-text-editor\" data-id=\"139d0cf\" 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<table><tbody><tr><td width=\"158\"><p>\u00a0<\/p><p>Fire Retardant<\/p><\/td><td width=\"158\"><p>\u00a0<\/p><p>Fire Resistance Mechanism<\/p><\/td><td width=\"158\"><p>\u00a0<\/p><p>Eco-Friendly<\/p><\/td><td width=\"158\"><p>\u00a0<\/p><p>st-Effective<\/p><\/td><\/tr><tr><td width=\"158\"><p>\u00a0<\/p><p>Calcium Sulfate<\/p><\/td><td width=\"158\"><p>\u00a0<\/p><p>Water release + thermal block<\/p><\/td><td width=\"158\"><p>\u00a0<\/p><p>\u2705<\/p><\/td><td width=\"158\"><p>\u00a0<\/p><p>\u2705<\/p><\/td><\/tr><tr><td width=\"158\"><p>\u00a0<\/p><p>Aluminum Hydroxide<\/p><\/td><td width=\"158\"><p>\u00a0<\/p><p>Heat absorption<\/p><\/td><td width=\"158\"><p>\u00a0<\/p><p>\u2705<\/p><\/td><td width=\"158\"><p>\u00a0<\/p><p>\u274c<\/p><\/td><\/tr><tr><td width=\"158\"><p>\u00a0<\/p><p>Intumescent Paint<\/p><\/td><td width=\"158\"><p>\u00a0<\/p><p>Swelling barrier<\/p><\/td><td width=\"158\"><p>\u00a0<\/p><p>\u274c<\/p><\/td><td width=\"158\"><p>\u00a0<\/p><p>\u274c<\/p><\/td><\/tr><tr><td width=\"158\"><p>\u00a0<\/p><p>Fiberglass<\/p><\/td><td width=\"158\"><p>\u00a0<\/p><p>Thermal insulation<\/p><\/td><td width=\"158\"><p>\u00a0<\/p><p>\u2705<\/p><\/td><td width=\"158\"><p>\u00a0<\/p><p>_<\/p><\/td><\/tr><\/tbody><\/table><p>\ud83d\udca1 Calcium sulfate strikes a perfect balance between performance, safety, and price.<\/p>\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-c09e02c elementor-widget elementor-widget-heading\" data-id=\"c09e02c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Environmental &amp; Regulatory Advantages<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-939711f elementor-widget elementor-widget-text-editor\" data-id=\"939711f\" 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 style=\"text-align: justify;\">Unlike synthetic fire retardants, gypsum is 100% non-toxic and doesn\u2019t emit harmful fumes. It complies with LEED, BREEAM, and WELL Building Standard requirements \u2014 making it ideal for green building projects.<\/p>\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-3d97b13 elementor-widget elementor-widget-heading\" data-id=\"3d97b13\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\">Final Words: Is Calcium Sulfate Right for Your Fire-Safe Project?<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7ebd2ef elementor-widget elementor-widget-text-editor\" data-id=\"7ebd2ef\" 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 style=\"text-align: justify;\">If you&#8217;re looking to enhance fire resistance in your building designs or composite materials, calcium sulfate is a proven solution. With its natural fire protection, sustainability, and regulatory acceptance, it\u2019s a smart investment for modern construction projects.<\/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\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Looking for fire-resistant materials for construction or composites? Discover how calcium sulfate offers natural fire resistance, safety, and sustainability \u2014 all in one mineral. What is Calcium Sulfate and Why is It Fire-Resistant? Calcium sulfate, commonly found in the form of gypsum (CaSO\u2084\u00b72H\u2082O), is a naturally occurring mineral widely used in the construction industry. But [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":26348,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15,92],"tags":[58,96,35,10,21,30,64,26,53,54,40,16],"class_list":["post-26347","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-article","category-gypsum-plaster","tag-calcium-sulfate","tag-fire-resistant-wall","tag-gypsum","tag-gypsum-in-iran","tag-gypsum-plaster","tag-gypsum-powder","tag-gypsum-powder-supplier","tag-gypsum-production","tag-gypsum-rock","tag-natural-gypsum","tag-plaster","tag-plastering"],"_links":{"self":[{"href":"https:\/\/jonoubgypsum.com\/en\/wp-json\/wp\/v2\/posts\/26347","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jonoubgypsum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jonoubgypsum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jonoubgypsum.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/jonoubgypsum.com\/en\/wp-json\/wp\/v2\/comments?post=26347"}],"version-history":[{"count":0,"href":"https:\/\/jonoubgypsum.com\/en\/wp-json\/wp\/v2\/posts\/26347\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jonoubgypsum.com\/en\/wp-json\/wp\/v2\/media\/26348"}],"wp:attachment":[{"href":"https:\/\/jonoubgypsum.com\/en\/wp-json\/wp\/v2\/media?parent=26347"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jonoubgypsum.com\/en\/wp-json\/wp\/v2\/categories?post=26347"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jonoubgypsum.com\/en\/wp-json\/wp\/v2\/tags?post=26347"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}