{"id":2674,"date":"2026-02-04T02:08:20","date_gmt":"2026-02-04T02:08:20","guid":{"rendered":"https:\/\/huilicoating.com\/?p=2674"},"modified":"2026-04-14T09:01:40","modified_gmt":"2026-04-14T09:01:40","slug":"fireproof-coating-system-steel-structures","status":"publish","type":"post","link":"https:\/\/huilicoating.com\/fr\/fireproof-coating-system-steel-structures\/","title":{"rendered":"Syst\u00e8me de rev\u00eatement ignifuge pour structures en acier : types, normes et conception du syst\u00e8me"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2674\" class=\"elementor elementor-2674\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2b58106e e-flex e-con-boxed e-con e-parent\" data-id=\"2b58106e\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3ae27d18 elementor-widget elementor-widget-text-editor\" data-id=\"3ae27d18\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A fireproof coating system for steel structures is not a single \u201cfireproof paint\u201d\u2014it is a\u00a0<strong>tested and specified system<\/strong>\u00a0(typically primer + passive fire protection layer + optional topcoat\/sealer) that must match the required fire scenario and be applied exactly as required to keep the rating. UL explicitly warns that deviations from certification requirements and individual design details will void the fire rating and UL certification.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13cdb47a elementor-widget elementor-widget-image\" data-id=\"13cdb47a\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"449\" src=\"https:\/\/huilicoating.com\/wp-content\/uploads\/2026\/02\/fireproof-coating-system-layers-steel.webp-1024x575.jpg\" class=\"attachment-large size-large wp-image-2680\" alt=\"Fireproof coating system layers on steel including primer intumescent and topcoat\" srcset=\"https:\/\/huilicoating.com\/wp-content\/uploads\/2026\/02\/fireproof-coating-system-layers-steel.webp-1024x575.jpg 1024w, https:\/\/huilicoating.com\/wp-content\/uploads\/2026\/02\/fireproof-coating-system-layers-steel.webp-300x168.jpg 300w, https:\/\/huilicoating.com\/wp-content\/uploads\/2026\/02\/fireproof-coating-system-layers-steel.webp-768x431.jpg 768w, https:\/\/huilicoating.com\/wp-content\/uploads\/2026\/02\/fireproof-coating-system-layers-steel.webp-1536x863.jpg 1536w, https:\/\/huilicoating.com\/wp-content\/uploads\/2026\/02\/fireproof-coating-system-layers-steel.webp-2048x1150.jpg 2048w, https:\/\/huilicoating.com\/wp-content\/uploads\/2026\/02\/fireproof-coating-system-layers-steel.webp-600x337.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-77031bc elementor-widget elementor-widget-text-editor\" data-id=\"77031bc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"why-fireproof-coating-is-critical-for-steel-struct\" class=\"mb-2 mt-4 [.has-inline-images_&amp;]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base visRefresh2026Fonts:text-lg first:mt-0 md:text-lg [hr+&amp;]:mt-4\">Why Fireproof Coating Is Critical for Steel Structures<\/h2><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Steel loses load-bearing capacity as temperature rises, so passive fire protection is used to slow heating and maintain integrity for the required time (project-dependent design temperature criteria). UL\u2019s guidance highlights that appropriate standards and certified system details must be followed for the intended environment and rating to be valid.<span class=\"inline-flex\" aria-label=\"Testing and Certification of Steelwork Fire Protection - UL Solutions\" data-state=\"closed\">\u200b<\/span><\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">In real projects, \u201cfireproofing failure\u201d is often a design-and-execution failure: wrong fire scenario, wrong thickness basis, incompatible primer, or uncontrolled application. UL explicitly states that failing to comply with certification requirements and design details can void the fire rating.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-237e7148 elementor-widget elementor-widget-text-editor\" data-id=\"237e7148\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"types-of-fireproof-coatings-used-in-steel-structur\" class=\"mb-2 mt-4 [.has-inline-images_&amp;]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base visRefresh2026Fonts:text-lg first:mt-0 md:text-lg [hr+&amp;]:mt-4\">Types of Fireproof Coatings Used in Steel Structures<\/h2><h3 class=\"mb-2 mt-4 [.has-inline-images_&amp;]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base first:mt-0\">Intumescent fireproof coating (reactive)<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Intumescent systems expand when heated to form an insulating char, and the required DFT is not fixed\u2014it depends on multiple factors including steel section factor (Hp\/A) and required fire resistance time. A section-factor guide notes that higher Hp\/A steel members typically require thicker passive fire protection to achieve the same rating.<span class=\"inline-flex\" aria-label=\"Steel section factor in intumescent paint coating specification\" data-state=\"closed\">\u200b<\/span><\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\"><strong>Best-fit scenarios (typical):<\/strong><\/p><ul class=\"marker:text-quiet list-disc\"><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Architectural steel or visible areas (aesthetics), plant steelwork where weight\/space matters (project-dependent).<\/p><\/li><\/ul><h3 class=\"mb-2 mt-4 [.has-inline-images_&amp;]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base first:mt-0\">Cementitious fireproof coating (non-reactive)<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Cementitious fireproofing is commonly selected where robust build and cost efficiency are prioritized over appearance, and where thicker applications are acceptable (project-dependent). Selection still must follow the project\u2019s standard, fire scenario, and approved design details to avoid rating gaps.<span class=\"inline-flex\" aria-label=\"Testing and Certification of Steelwork Fire Protection - UL Solutions\" data-state=\"closed\">\u200b<\/span><\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\"><strong>Buyer decision rule:<\/strong>\u00a0If aesthetics\/space are tight, intumescent often fits better; if large thickness is acceptable and durability strategy is clear, cementitious can be practical (both are project-dependent).<span class=\"inline-flex\" aria-label=\"Testing and Certification of Steelwork Fire Protection - UL Solutions\" data-state=\"closed\">\u200b<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2a0f4fdc elementor-widget elementor-widget-text-editor\" data-id=\"2a0f4fdc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"fireproof-coating-system-design-not-just-the-produ\" class=\"mb-2 mt-4 [.has-inline-images_&amp;]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base visRefresh2026Fonts:text-lg first:mt-0 md:text-lg [hr+&amp;]:mt-4\">Fireproof Coating System Design (Not Just the Product)<\/h2><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">This is the section most RFQs miss\u2014and where costly rework happens.<\/p><h3 class=\"mb-2 mt-4 [.has-inline-images_&amp;]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base first:mt-0\">1) Compatible primer selection (do not assume)<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">HUILI\u2019s own fire-resistant coating guidance frames fireproof coatings as\u00a0<strong>systems<\/strong>, and a typical system includes an anti-corrosion primer as the adhesion base. Primer selection must be compatible with the PFP layer and the project\u2019s approval path (project-dependent).<span class=\"inline-flex\" aria-label=\"Fire-Resistant Coating Series: Manufacturer Guide &amp; RFQ\" data-state=\"closed\">\u200b<\/span><\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Practical rule from certification logic: if a system is tested\/certified as a combination, swapping primers\/topcoats can create a \u201cnon-certified build,\u201d even if each product is good individually (project-dependent). UL warns that deviation from certification requirements can void the rating.<span class=\"inline-flex\" aria-label=\"Testing and Certification of Steelwork Fire Protection - UL Solutions\" data-state=\"closed\">\u200b<\/span><\/p><h3 class=\"mb-2 mt-4 [.has-inline-images_&amp;]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base first:mt-0\">2) Coating thickness calculation (why \u201c60 min = X mm\u201d is wrong)<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">The required thickness depends on steel geometry and heating rate, commonly represented by section factor Hp\/A. A section-factor reference explains that higher Hp\/A sections heat faster and require thicker passive fire protection for the same rating.<span class=\"inline-flex\" aria-label=\"Steel section factor in intumescent paint coating specification\" data-state=\"closed\">\u200b<\/span><\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\"><strong>What to request from the manufacturer:<\/strong>\u00a0member schedule + Hp\/A (or dimensions), required rating time, fire scenario\/standard, and exposure (indoor\/outdoor\/chemical). Then thickness is derived from loading tables (final by TDS\/spec).<span class=\"inline-flex\" aria-label=\"Steel section factor in intumescent paint coating specification\" data-state=\"closed\">\u200b<\/span><\/p><h3 class=\"mb-2 mt-4 [.has-inline-images_&amp;]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base first:mt-0\">3) Topcoat \/ sealer requirements (durability protection)<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Depending on exposure (humidity, condensation, UV, chemical splash), an intumescent layer may require a compatible topcoat or sealer for durability (project-dependent). Any added layer must be within the tested\/approved system or explicitly accepted by the project authority to avoid rating disputes.<span class=\"inline-flex\" aria-label=\"Testing and Certification of Steelwork Fire Protection - UL Solutions\" data-state=\"closed\">\u200b<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2ebc28e2 elementor-widget elementor-widget-text-editor\" data-id=\"2ebc28e2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"fire-resistance-standards--ratings-what-to-confirm\" class=\"mb-2 mt-4 [.has-inline-images_&amp;]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base visRefresh2026Fonts:text-lg first:mt-0 md:text-lg [hr+&amp;]:mt-4\">Fire Resistance Standards &amp; Ratings (what to confirm before quoting)<\/h2><h3 class=\"mb-2 mt-4 [.has-inline-images_&amp;]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base first:mt-0\">Cellulosic vs hydrocarbon rapid-rise<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">UL\u2019s guidance emphasizes UL 1709 as an appropriate standard where rapid-rise hydrocarbon fire may occur, and it stresses that certification and design details must be followed to maintain the desired fire protection. This is critical for oil &amp; gas \/ petrochemical projects in the Middle East and Central Asia (project-dependent).<span class=\"inline-flex\" aria-label=\"Testing and Certification of Steelwork Fire Protection - UL Solutions\" data-state=\"closed\">\u200b<\/span><\/p><h3 class=\"mb-2 mt-4 [.has-inline-images_&amp;]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base first:mt-0\">30 \/ 60 \/ 90 \/ 120 minutes explained (procurement clarity)<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">These times are not universal thickness numbers; they represent a required protection period under a defined test scenario and design detail set. If the scenario or member geometry changes, the required thickness changes accordingly (final by loading tables\/TDS).<\/p><p>\u00a0<\/p><h2 id=\"typical-applications-of-fireproof-coating-systems\" class=\"mb-2 mt-4 [.has-inline-images_&amp;]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base visRefresh2026Fonts:text-lg first:mt-0 md:text-lg [hr+&amp;]:mt-4\">Typical Applications of Fireproof Coating Systems<\/h2><ul class=\"marker:text-quiet list-disc\"><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Industrial plants (process units, pipe racks, platforms) (project-dependent)<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Steel workshops and industrial buildings (project-dependent)<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Power facilities and substations (project-dependent)<\/p><\/li><\/ul><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\"><a href=\"https:\/\/huilicoating.com\/fire-resistant-coating-series-manufacturer-guide-rfq\/\"><span style=\"color: #3366ff;\">[Fire-Resistant Coating Series] -&gt;\u00a0<\/span><\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9795f42 elementor-widget elementor-widget-text-editor\" data-id=\"9795f42\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"common-fireproof-coating-failures-and-how-to-avoid\" class=\"mb-2 mt-4 [.has-inline-images_&amp;]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base visRefresh2026Fonts:text-lg first:mt-0 md:text-lg [hr+&amp;]:mt-4\">Common Fireproof Coating Failures and How to Avoid Them<\/h2><ul class=\"marker:text-quiet list-disc\"><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\"><strong>Cracking:<\/strong>\u00a0often linked to overbuild per pass, substrate movement, or incorrect cure environment; control application method and environmental limits (project-dependent).<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\"><strong>Delamination \/ falling off:<\/strong>\u00a0commonly tied to primer incompatibility, poor surface prep, or contamination; specify the full system and verify adhesion-critical steps (project-dependent).<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\"><strong>Rating not achieved:<\/strong>\u00a0usually caused by wrong thickness basis (no Hp\/A), wrong standard scenario, or non-compliant system substitutions; UL states deviations from certification requirements void rating\/certification.<span class=\"inline-flex\" aria-label=\"Testing and Certification of Steelwork Fire Protection - UL Solutions\" data-state=\"closed\">\u200b<\/span><\/p><\/li><\/ul><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\"><strong>What buyers forget:<\/strong>\u00a0Your RFQ must include the member schedule and fire scenario; otherwise thickness cannot be responsibly calculated and quotes become non-comparable.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-60dad5d1 elementor-widget elementor-widget-text-editor\" data-id=\"60dad5d1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"quality--inspection-checklist-dft-recoat-surface-p\" class=\"mb-2 mt-4 [.has-inline-images_&amp;]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base visRefresh2026Fonts:text-lg first:mt-0 md:text-lg [hr+&amp;]:mt-4\">Quality \/ Inspection Checklist (DFT, recoat, surface prep)<\/h2><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Use this to reduce rejection risk during inspection (final acceptance criteria by project spec).<\/p><ul class=\"marker:text-quiet list-disc\"><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Confirm substrate prep and cleanliness before primer (project-dependent).<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Verify primer DFT and cure before PFP application (project-dependent).<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Measure PFP thickness and document location-based readings; thickness must align with Hp\/A-based requirement (final by TDS\/loading tables).<span class=\"inline-flex\" aria-label=\"Steel section factor in intumescent paint coating specification\" data-state=\"closed\">\u200b<\/span><\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Control recoat intervals between primer\/PFP\/topcoat and keep batch traceability (project-dependent).<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Maintain documentation package required for certification\/approval; UL highlights follow-up inspection requirements within certification schemes and stresses compliance with details to maintain rating.<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-69bbb3f7 elementor-widget elementor-widget-text-editor\" data-id=\"69bbb3f7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"rfq-checklist-near-the-end\" class=\"mb-2 mt-4 [.has-inline-images_&amp;]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base visRefresh2026Fonts:text-lg first:mt-0 md:text-lg [hr+&amp;]:mt-4\">RFQ Checklist (near the end)<\/h2><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Send these to get a compliant system design + thickness recommendation + quote:<\/p><ul class=\"marker:text-quiet list-disc\"><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Project location and facility type (industrial\/building\/oil &amp; gas)<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Fire scenario\/standard required: cellulosic or hydrocarbon rapid-rise (e.g., UL 1709 where applicable)<span class=\"inline-flex\" aria-label=\"Testing and Certification of Steelwork Fire Protection - UL Solutions\" data-state=\"closed\">\u200b<\/span><\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Required fire resistance time: 30\/60\/90\/120 min<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Steel member schedule: section sizes, orientations, exposure sides; Hp\/A if available<span class=\"inline-flex\" aria-label=\"Steel section factor in intumescent paint coating specification\" data-state=\"closed\">\u200b<\/span><\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Environment: interior\/exterior, humidity\/condensation, chemical splash (project-dependent)<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Corrosion protection need under PFP (primer requirement)<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Application method: shop\/site, access limits, climate window<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Documents requested: TDS\/SDS, loading tables\/thickness calculation basis, application &amp; inspection method statement<\/p><\/li><\/ul><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\"><a href=\"https:\/\/huilicoating.com\/anti-rust-primer-coatings-series\/\"><span style=\"color: #3366ff;\">[Anti-Rust &amp; Primer Coatings Series] -&gt;<\/span> <\/a><span class=\"inline-flex\" aria-label=\"Anti-Rust &amp; Primer Coatings for Steel Structures | Industrial ...\" data-state=\"closed\">\u200b<\/span><br \/><a href=\"https:\/\/huilicoating.com\/areas-of-application\/steel-structure-coating-industrial-anti-corrosion-solutions\/\"><span style=\"color: #3366ff;\">[Steel Structure Coating Solutions] -&gt;<\/span> <\/a><span class=\"inline-flex\" aria-label=\"Steel Structure Coating Systems | Industrial Anti-Corrosion ...\" data-state=\"closed\">\u200b<\/span><\/p><h2 id=\"cta-request-a-compliant-fireproof-coating-system-d\" class=\"mb-2 mt-4 [.has-inline-images_&amp;]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base visRefresh2026Fonts:text-lg first:mt-0 md:text-lg [hr+&amp;]:mt-4\">CTA: Request a Compliant Fireproof Coating System Design<\/h2><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Send your fire scenario (cellulosic vs hydrocarbon), rating time, and steel member schedule (or Hp\/A), plus your exposure conditions and primer preference. We will design a compliant fireproof coating system for your steel structure project, provide TDS\/SDS, and issue a thickness recommendation based on approved loading tables (final by TDS and project specification). UL stresses that certification requirements and design details must be followed to maintain the fire rating.<\/p>\t\t\t\t\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-4e04e259 e-con-full e-flex e-con e-parent\" data-id=\"4e04e259\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-25231e5b e-con-full e-flex e-con e-child\" data-id=\"25231e5b\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4a571da3 elementor-widget elementor-widget-heading\" data-id=\"4a571da3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Contact Us<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-16ae150d elementor-widget elementor-widget-heading\" data-id=\"16ae150d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">We would love to speak with you.<br>Feel free to reach out using the below details.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4f52d494 e-con-full e-flex e-con e-child\" data-id=\"4f52d494\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-17514e41 elementor-button-align-start elementor-tablet-button-align-center elementor-widget elementor-widget-form\" data-id=\"17514e41\" data-element_type=\"widget\" data-settings=\"{&quot;step_next_label&quot;:&quot;Next&quot;,&quot;step_previous_label&quot;:&quot;Previous&quot;,&quot;button_width&quot;:&quot;100&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;}\" data-widget_type=\"form.default\">\n\t\t\t\t\t\t\t<form class=\"elementor-form\" method=\"post\" name=\"Contact Form\">\n\t\t\t<input type=\"hidden\" name=\"post_id\" value=\"2674\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"17514e41\"\/>\n\t\t\t<input type=\"hidden\" name=\"referer_title\" value=\"\" \/>\n\n\t\t\t\n\t\t\t<div class=\"elementor-form-fields-wrapper elementor-labels-\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-name elementor-col-50 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-name\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tYour 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elementor-column elementor-field-group-field_6c180a9 elementor-col-50 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_6c180a9\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tPhone Number\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<input size=\"1\" type=\"tel\" name=\"form_fields[field_6c180a9]\" id=\"form-field-field_6c180a9\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Phone Number*\" required=\"required\" pattern=\"[0-9()#&amp;+*-=.]+\" title=\"Only numbers and phone characters (#, -, *, etc) are accepted.\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-email elementor-col-50 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-email\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tEmail\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Email*\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-message elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-message\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tMessage\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-sm\" name=\"form_fields[message]\" id=\"form-field-message\" rows=\"4\" placeholder=\"Message\"><\/textarea>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-100 e-form__buttons\">\n\t\t\t\t\t<button class=\"elementor-button elementor-size-sm\" type=\"submit\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Send<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/form>\n\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","protected":false},"excerpt":{"rendered":"<p>A fireproof coating system for steel structures is not a single \u201cfireproof paint\u201d\u2014it is a\u00a0tested and specified system\u00a0(typically primer + passive fire protection layer + optional topcoat\/sealer) that must match the required fire scenario and be applied exactly as required to keep the rating. UL explicitly warns that deviations from certification requirements and individual design [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2680,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[98],"tags":[],"class_list":["post-2674","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-coating-systems-solutions"],"acf":[],"_links":{"self":[{"href":"https:\/\/huilicoating.com\/fr\/wp-json\/wp\/v2\/posts\/2674","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/huilicoating.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/huilicoating.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/huilicoating.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/huilicoating.com\/fr\/wp-json\/wp\/v2\/comments?post=2674"}],"version-history":[{"count":1,"href":"https:\/\/huilicoating.com\/fr\/wp-json\/wp\/v2\/posts\/2674\/revisions"}],"predecessor-version":[{"id":4062,"href":"https:\/\/huilicoating.com\/fr\/wp-json\/wp\/v2\/posts\/2674\/revisions\/4062"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/huilicoating.com\/fr\/wp-json\/wp\/v2\/media\/2680"}],"wp:attachment":[{"href":"https:\/\/huilicoating.com\/fr\/wp-json\/wp\/v2\/media?parent=2674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/huilicoating.com\/fr\/wp-json\/wp\/v2\/categories?post=2674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/huilicoating.com\/fr\/wp-json\/wp\/v2\/tags?post=2674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}