{"id":2696,"date":"2026-02-04T03:42:37","date_gmt":"2026-02-04T03:42:37","guid":{"rendered":"https:\/\/huilicoating.com\/?p=2696"},"modified":"2026-02-07T08:27:19","modified_gmt":"2026-02-07T08:27:19","slug":"common-coating-failures-in-steel-structure-projects-and-how-to-avoid-them","status":"publish","type":"post","link":"https:\/\/huilicoating.com\/ru\/common-coating-failures-in-steel-structure-projects-and-how-to-avoid-them\/","title":{"rendered":"\u0420\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0451\u043d\u043d\u044b\u0435 \u043d\u0435\u0438\u0441\u043f\u0440\u0430\u0432\u043d\u043e\u0441\u0442\u0438 \u043f\u043e\u043a\u0440\u044b\u0442\u0438\u0439 \u0432 \u043f\u0440\u043e\u0435\u043a\u0442\u0430\u0445 \u0441\u0442\u0430\u043b\u044c\u043d\u044b\u0445 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0439 \u0438 \u043a\u0430\u043a \u0438\u0445 \u0438\u0437\u0431\u0435\u0436\u0430\u0442\u044c"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2696\" class=\"elementor elementor-2696\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3a56ebcb e-flex e-con-boxed e-con e-parent\" data-id=\"3a56ebcb\" 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-7372e0fb elementor-widget elementor-widget-text-editor\" data-id=\"7372e0fb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Steel structure coating failure is rarely a pure product-quality issue; it\u2019s usually a mismatch between surface condition, environment severity, and the coating system design and controls used during application. The fastest way to prevent repeat failures is to treat each symptom (peeling, blistering, underfilm corrosion, early rust) as an inspection problem: verify surface cleanliness (including salts), verify prep standard, then verify system build and application controls.<\/p><p>\u00a0<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\"><strong>Quick Guide: Stop failures before they start<\/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\">Confirm failure location: edges\/welds\/bolts vs flat areas (details fail first).<\/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 surface prep: confirm Sa 2.5 (near-white) is actually achieved, not just written in the RFQ.<span class=\"inline-flex\" aria-label=\"Surface Preparation Standards Explained - SSPC\/NACE &amp; ISO 8501\" 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\">Check salts: test and control soluble salts to reduce blistering and underfilm corrosion risk.<span class=\"inline-flex\" aria-label=\"Role of Soluble Salts in Coating Failures - FROSIO Training\" 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\">Validate system build: confirm primer + epoxy build + topcoat compatibility and target DFT by layer.<\/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 application: monitor humidity\/temperature, recoat windows, and documentation hold points.<\/p><\/li><\/ul><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-60fb3bbe elementor-widget elementor-widget-image\" data-id=\"60fb3bbe\" 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\/01\/sweep-blast-primed-steel-before-intumescent.webp-1024x575.jpg\" class=\"attachment-large size-large wp-image-2213\" alt=\"Sweep blasting primed steel before applying intumescent coating]\" srcset=\"https:\/\/huilicoating.com\/wp-content\/uploads\/2026\/01\/sweep-blast-primed-steel-before-intumescent.webp-1024x575.jpg 1024w, https:\/\/huilicoating.com\/wp-content\/uploads\/2026\/01\/sweep-blast-primed-steel-before-intumescent.webp-300x168.jpg 300w, https:\/\/huilicoating.com\/wp-content\/uploads\/2026\/01\/sweep-blast-primed-steel-before-intumescent.webp-768x431.jpg 768w, https:\/\/huilicoating.com\/wp-content\/uploads\/2026\/01\/sweep-blast-primed-steel-before-intumescent.webp-600x337.jpg 600w, https:\/\/huilicoating.com\/wp-content\/uploads\/2026\/01\/sweep-blast-primed-steel-before-intumescent.webp.jpg 1282w\" 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-148b3940 elementor-widget elementor-widget-text-editor\" data-id=\"148b3940\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"most-common-coating-failures-in-steel-structures-w\" 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\">Most common coating failures in steel structures (what they look like)<\/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\">Peeling \/ delamination<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Peeling usually appears as sheets or flakes lifting from the substrate, often starting at edges, welds, and cutouts where film build is thin and prep is inconsistent. In practice, it often indicates adhesion failure: contamination, inadequate profile, or coating applied over weakly attached rust\/scale.<span class=\"inline-flex\" aria-label=\"Surface Preparation Standards Explained - SSPC\/NACE &amp; ISO 8501\" 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\">Blistering<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Blistering can look like domes or bubbles; when opened, it may contain brine or moisture. Soluble salts trapped under the coating can pull water through the film via osmotic pressure, creating\u00a0<strong>osmotic blistering<\/strong>\u00a0and setting up conditions for accelerated degradation.<span class=\"inline-flex\" aria-label=\"Role of Soluble Salts in Coating Failures - FROSIO Training\" 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\">Underfilm corrosion<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Underfilm corrosion is corrosion spreading beneath a coating, often hidden until rust staining or disbondment becomes visible. Soluble salts can create a conductive electrolyte under the coating and sustain localized electrochemical attack, leading to underfilm corrosion and progressive delamination.<span class=\"inline-flex\" aria-label=\"Role of Soluble Salts in Coating Failures - FROSIO Training\" 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\">Early rusting (rust bleed-through \/ rust spots)<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Early rust spots often show up at welds, edges, or thin areas soon after commissioning. Common triggers include insufficient DFT at details, flash rust after blasting, or coating over contaminated steel\u2014especially where salts and moisture are present.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-34f672ee elementor-widget elementor-widget-text-editor\" data-id=\"34f672ee\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"root-causes-behind-coating-failures-what-engineers\" 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\">Root causes behind coating failures (what engineers should check first)<\/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\">Surface preparation issues<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">If the substrate is not clean and properly prepared, coatings cannot form reliable mechanical bonding and barrier protection. A key root cause is \u201cvisual cleanliness only\u201d\u2014surfaces can look clean while still carrying soluble salt contamination that later drives blistering and underfilm corrosion.<span class=\"inline-flex\" aria-label=\"Role of Soluble Salts in Coating Failures - FROSIO Training\" 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\">Wrong coating system for the exposure<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">A system that works indoors may fail outdoors; a system designed for industrial atmosphere may fail faster in coastal wetting or high humidity. When the environment is underestimated, the system is usually underbuilt (insufficient barrier layers and protection at details).<span class=\"inline-flex\" aria-label=\"Surface Preparation Standards Explained - SSPC\/NACE &amp; ISO 8501\" 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\">Environmental misjudgment (humidity, condensation, wetting cycles)<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Repeated wet\/dry cycles and condensation amplify the impact of any remaining salts or weak points. Salt-driven osmotic effects and underfilm corrosion are more likely when moisture cycles are frequent.<span class=\"inline-flex\" aria-label=\"Role of Soluble Salts in Coating Failures - FROSIO Training\" 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\">Poor application control<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Even with the right spec, poor mixing discipline, uncontrolled film build, or ignoring recoat windows can reduce adhesion and durability. Failures then show up as delamination, cracking, or premature corrosion at weak points (especially details).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-38122784 elementor-widget elementor-widget-text-editor\" data-id=\"38122784\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"how-surface-preparation-directly-affects-coating-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\">How surface preparation directly affects coating performance<\/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\">What Sa 2.5 really means on site<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Sa 2.5 is commonly described as \u201cvery thorough blast cleaning,\u201d and it is often cross-referenced with near-white blast cleaning concepts. Practical guidance also notes a key nuance: SP10 limits staining to about 5% of the surface, while Sa 2.5 can allow more staining (often cited up to ~15%), so your specification should be explicit about which acceptance basis you will inspect against.<span class=\"inline-flex\" aria-label=\"Surface Preparation Standards Explained - SSPC\/NACE &amp; ISO 8501\" 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\">Roughness\/profile and adhesion (why \u201ctoo smooth\u201d also fails)<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Blast cleaning does more than remove rust\u2014it creates a surface profile that supports mechanical interlocking. If the profile is too low, adhesion can suffer; if it is excessive for the coating build, peaks may be under-covered and become early corrosion initiation points (specify profile control and verify it).<span class=\"inline-flex\" aria-label=\"Surface Preparation Standards Explained - SSPC\/NACE &amp; ISO 8501\" 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\">Soluble salts: the hidden variable behind blistering and underfilm corrosion<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Soluble salts (chlorides, sulfates, nitrates) can catalyze underfilm corrosion and drive osmotic blistering; this is why salt testing and mitigation is standard practice for many coastal\/marine and high-risk assets. The mechanism is well explained: salt pockets draw water through the coating, build pressure, form blisters, and then create a conductive underfilm environment that accelerates corrosion spread.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-23d05da0 elementor-widget elementor-widget-text-editor\" data-id=\"23d05da0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"system-design-mistakes-that-lead-to-premature-fail\" 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\">System design mistakes that lead to premature failure<\/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\">Wrong primer choice (or primer not matched to the system)<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Primers must match both substrate condition and the full system\u2019s compatibility. A primer that is fine in one system can become the weak link if the intermediate\/topcoat chemistry or application window is mismatched.<span class=\"inline-flex\" aria-label=\"Steel Structure Coating Systems | Industrial Anti-Corrosion ...\" 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\">Not enough film build where it matters<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Projects often measure DFT on flat areas and miss edges and welds. If barrier thickness is insufficient at details, corrosion starts there first, then creeps under the coating and shows up as staining, blistering, and delamination.<span class=\"inline-flex\" aria-label=\"Role of Soluble Salts in Coating Failures - FROSIO Training\" 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\">Topcoat not weathering-capable for the exposure<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">If the structure is outdoors, the topcoat needs to handle UV and weathering. If the topcoat is chosen for price or availability rather than exposure, the coating system can degrade faster and require earlier maintenance.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3dc43bee elementor-widget elementor-widget-text-editor\" data-id=\"3dc43bee\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"how-to-prevent-coating-failures-in-steel-structure\" 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\">How to prevent coating failures in steel structure projects<\/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\">Specify the system (not a single product)<\/h3><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Write the RFQ as a coating\u00a0<strong>system<\/strong>: primer + epoxy build + topcoat, with compatibility required and defined inspection hold points. This aligns with how steel structure coating systems are presented as protective barriers intended to extend service life and reduce maintenance.<span class=\"inline-flex\" aria-label=\"Steel Structure Coating Systems | Industrial Anti-Corrosion ...\" 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\">Standardize execution controls (what prevents 80% of rework)<\/h3><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\">Define surface preparation standard and acceptance criteria (visual + measurable checks such as salt testing where relevant).<\/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\">Require stripe coat at edges\/welds and verify before full coats.<\/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\">Record environmental conditions, batch traceability, and inspection results as part of handover.<\/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\">Use a practical \u201csymptom \u2192 action\u201d table<\/h3><div class=\"group relative\"><div class=\"w-full overflow-x-auto md:max-w-[90vw] border-subtlest ring-subtlest divide-subtlest bg-transparent\"><table class=\"border-subtler my-[1em] w-full table-auto border-separate border-spacing-0 border-l border-t\"><thead class=\"bg-subtler\"><tr><th class=\"border-subtler p-sm break-normal border-b border-r text-left align-top\">Failure symptom<\/th><th class=\"border-subtler p-sm break-normal border-b border-r text-left align-top\">Fast field checks<\/th><th class=\"border-subtler p-sm break-normal border-b border-r text-left align-top\">Prevention actions<\/th><\/tr><\/thead><tbody><tr><td class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\">Peeling\/delamination<\/td><td class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\">Check prep standard evidence; check contamination; check adhesion at edges<\/td><td class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\">Tighten surface prep verification; enforce stripe coat; confirm layer compatibility\u00a0<span class=\"inline-flex\" aria-label=\"Surface Preparation Standards Explained - SSPC\/NACE &amp; ISO 8501\" data-state=\"closed\">\u200b<\/span><\/td><\/tr><tr><td class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\">Blistering<\/td><td class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\">Open blister: brine\/moisture? check salt test records<\/td><td class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\">Test\/mitigate soluble salts; control moisture exposure; improve surface cleanliness\u00a0<span class=\"inline-flex\" aria-label=\"Role of Soluble Salts in Coating Failures - FROSIO Training\" data-state=\"closed\">\u200b<\/span><\/td><\/tr><tr><td class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\">Underfilm corrosion<\/td><td class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\">Map spread from details\/defects; check water traps<\/td><td class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\">Improve detail protection; seal\/repair defects early; strengthen barrier build\u00a0<span class=\"inline-flex\" aria-label=\"Role of Soluble Salts in Coating Failures - FROSIO Training\" data-state=\"closed\">\u200b<\/span><\/td><\/tr><tr><td class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\">Early rusting<\/td><td class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\">Check DFT at welds\/edges; check blast-to-coat timing<\/td><td class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\">Increase coverage at details; control timing and environment; add stripe coat discipline\u00a0<span class=\"inline-flex\" aria-label=\"Surface Preparation Standards Explained - SSPC\/NACE &amp; ISO 8501\" data-state=\"closed\">\u200b<\/span><\/td><\/tr><\/tbody><\/table><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-57ab9006 elementor-widget elementor-widget-text-editor\" data-id=\"57ab9006\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"recommended-anti-corrosion-systems-for-steel-struc\" 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\">Recommended anti-corrosion systems for steel structures<\/h2><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">For project teams that want to prevent repeat failures, start by aligning the system to steel structure application scenarios and typical industrial exposures, then request a system recommendation with TDS support.<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Anchor: <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><br \/>Anchor: <a href=\"https:\/\/huilicoating.com\/anti-corrosion-coating-for-steel-structures-how-to-choose\/\"><span style=\"color: #3366ff;\">[Anti-Corrosion Coating for Steel Structures: How to Choose] -&gt;<\/span> <\/a><span class=\"inline-flex\" aria-label=\"Anti-Corrosion Coating for Steel Structures: How to Choose\" data-state=\"closed\">\u200b<\/span><br \/>Anchor: <a href=\"https:\/\/huilicoating.com\/epoxy-anti-corrosion-coating-series\/\"><span style=\"color: #3366ff;\">[Epoxy Anti-Corrosion 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-269b37c8 elementor-widget elementor-widget-text-editor\" data-id=\"269b37c8\" 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-steel-structure-focu\" 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 (steel structure focused)<\/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\">Surface prep standard confirmed (Sa\/SP level), with documented acceptance criteria and records.<span class=\"inline-flex\" aria-label=\"Surface Preparation Standards Explained - SSPC\/NACE &amp; ISO 8501\" 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\">Soluble salts checked where exposure is coastal\/high humidity or where blistering risk is critical.<span class=\"inline-flex\" aria-label=\"Role of Soluble Salts in Coating Failures - FROSIO Training\" 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\">Surface dust\/cleanliness verified before priming (project practice).<\/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\">DFT verified by coat and at details (edges\/welds\/bolts), not only on flat areas.<\/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\">Recoat timing and environmental conditions logged (humidity\/temperature), with batch traceability.<\/p><\/li><\/ul><h2 id=\"rfq-checklist-send-this-to-get-a-high-quality-reco\" 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 (send this to get a high-quality recommendation)<\/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\">Project location and exposure: indoor\/outdoor, coastal distance, humidity and wetting cycles<\/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\">Substrate condition: new steel vs maintenance, existing coating condition<\/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\">Target surface preparation standard (Sa 2.5 \/ SP10 or others) and achievable method (blast vs power tools)<span class=\"inline-flex\" aria-label=\"Surface Preparation Standards Explained - SSPC\/NACE &amp; ISO 8501\" 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\">Failure history (if any): where it failed, photos, time to failure<\/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\">Coating performance target: maintenance interval expectation<\/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: system recommendation, TDS\/SDS, inspection checklist, repair procedure<\/p><\/li><\/ul><h2 id=\"technical-note--disclaimer\" 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\">Technical note \/ disclaimer<\/h2><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">System selection, surface preparation level, inspection acceptance criteria, and film thickness targets must be confirmed by the applicable TDS, standards, and project specification. Final requirements vary with exposure severity, substrate condition, and application constraints.<\/p><h2 id=\"cta-engineering-grade\" 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\u00a0<\/h2><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Contact us to evaluate your current coating system and avoid costly failures. Share your exposure conditions, surface preparation capability (e.g., Sa 2.5\/SP10), and failure symptoms\/photos\u2014our technical team will recommend a corrected system and provide the TDS package for RFQ.<\/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-5e2d445b e-con-full e-flex e-con e-parent\" data-id=\"5e2d445b\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-3c732109 e-con-full e-flex e-con e-child\" data-id=\"3c732109\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2d4c877f elementor-widget elementor-widget-heading\" data-id=\"2d4c877f\" 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-6e26304c elementor-widget elementor-widget-heading\" data-id=\"6e26304c\" 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-495bbc72 e-con-full e-flex e-con e-child\" data-id=\"495bbc72\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-21553197 elementor-button-align-start elementor-tablet-button-align-center elementor-widget elementor-widget-form\" data-id=\"21553197\" 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=\"2696\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"21553197\"\/>\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>Steel structure coating failure is rarely a pure product-quality issue; it\u2019s usually a mismatch between surface condition, environment severity, and the coating system design and controls used during application. The fastest way to prevent repeat failures is to treat each symptom (peeling, blistering, underfilm corrosion, early rust) as an inspection problem: verify surface cleanliness (including [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2213,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[101],"tags":[],"class_list":["post-2696","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-regional-applications"],"acf":[],"_links":{"self":[{"href":"https:\/\/huilicoating.com\/ru\/wp-json\/wp\/v2\/posts\/2696","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/huilicoating.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/huilicoating.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/huilicoating.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/huilicoating.com\/ru\/wp-json\/wp\/v2\/comments?post=2696"}],"version-history":[{"count":0,"href":"https:\/\/huilicoating.com\/ru\/wp-json\/wp\/v2\/posts\/2696\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/huilicoating.com\/ru\/wp-json\/wp\/v2\/media\/2213"}],"wp:attachment":[{"href":"https:\/\/huilicoating.com\/ru\/wp-json\/wp\/v2\/media?parent=2696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/huilicoating.com\/ru\/wp-json\/wp\/v2\/categories?post=2696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/huilicoating.com\/ru\/wp-json\/wp\/v2\/tags?post=2696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}