{"id":12730,"date":"2026-04-07T02:49:53","date_gmt":"2026-04-07T02:49:53","guid":{"rendered":"https:\/\/hlh-js.com\/?p=12730"},"modified":"2026-04-07T02:49:53","modified_gmt":"2026-04-07T02:49:53","slug":"blasting-media-for-shipbuilding-marine-steel-structures","status":"publish","type":"post","link":"https:\/\/hlh-js.com\/ja\/resource\/blog\/blasting-media-for-shipbuilding-marine-steel-structures\/","title":{"rendered":"Blasting Media for Shipbuilding &amp; Marine Steel Structures"},"content":{"rendered":"<!-- ============================================================\n     JIANGSU HENGLIHONG TECHNOLOGY CO., LTD.\n     Article C-5: Blasting Media for Shipbuilding & Marine Steel Structures\n     Target URL: https:\/\/hlh-js.com\/resource\/blog\/blasting-media-for-shipbuilding-marine-steel-structures\/\n     Last updated: April 2026\n     ============================================================ -->\n<script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@graph\": [\n        {\n            \"@type\": \"Article\",\n            \"headline\": \"Blasting Media for Shipbuilding & Marine Steel Structures\",\n            \"description\": \"Complete guide to abrasive blasting media for shipbuilding and marine applications \\u2014 covering IMO PSPC compliance, NORSOK M-501, hull plate preparation, ballast tank blasting, and media selection for offshore and marine maintenance. By Jiangsu Henglihong Technology Co., Ltd.\",\n            \"author\": {\n                \"@type\": \"Organization\",\n                \"name\": \"Jiangsu Henglihong Technology Co., Ltd.\",\n                \"url\": \"https:\\\/\\\/hlh-js.com\"\n            },\n            \"publisher\": {\n                \"@type\": \"Organization\",\n                \"name\": \"Jiangsu Henglihong Technology Co., Ltd.\",\n                \"url\": \"https:\\\/\\\/hlh-js.com\"\n            },\n            \"datePublished\": \"2026-04-01\",\n            \"dateModified\": \"2026-04-01\",\n            \"mainEntityOfPage\": {\n                \"@type\": \"WebPage\",\n                \"@id\": \"https:\\\/\\\/hlh-js.com\\\/resource\\\/blog\\\/blasting-media-for-shipbuilding-marine-steel-structures\\\/\"\n            }\n        },\n        {\n            \"@type\": \"BreadcrumbList\",\n            \"itemListElement\": [\n                {\n                    \"@type\": \"ListItem\",\n                    \"position\": 1,\n                    \"name\": \"Home\",\n                    \"item\": \"https:\\\/\\\/hlh-js.com\\\/\"\n                },\n                {\n                    \"@type\": \"ListItem\",\n                    \"position\": 2,\n                    \"name\": \"Resources\",\n                    \"item\": \"https:\\\/\\\/hlh-js.com\\\/resource\\\/\"\n                },\n                {\n                    \"@type\": \"ListItem\",\n                    \"position\": 3,\n                    \"name\": \"Blog\",\n                    \"item\": \"https:\\\/\\\/hlh-js.com\\\/resource\\\/blog\\\/\"\n                },\n                {\n                    \"@type\": \"ListItem\",\n                    \"position\": 4,\n                    \"name\": \"Blasting Media for Shipbuilding & Marine Steel Structures\",\n                    \"item\": \"https:\\\/\\\/hlh-js.com\\\/resource\\\/blog\\\/blasting-media-for-shipbuilding-marine-steel-structures\\\/\"\n                }\n            ]\n        },\n        {\n            \"@type\": \"FAQPage\",\n            \"mainEntity\": [\n                {\n                    \"@type\": \"Question\",\n                    \"name\": \"What blasting media is used in shipbuilding?\",\n                    \"acceptedAnswer\": {\n                        \"@type\": \"Answer\",\n                        \"text\": \"Shipbuilding uses two main media types depending on the application stage. For automated new-build plate preparation on roller conveyor wheel blast lines, steel grit (GL or GH grade, G-25 to G-40) is the standard \\u2014 delivering high throughput, Sa 2.5 cleanliness, and 40\\u201375 \\u00b5m Rz anchor profiles at very low per-cycle cost. For maintenance blasting and open-site work on completed vessels or offshore structures, garnet (20\\\/40 to 36\\\/60 mesh) is most commonly specified due to its low dust, non-hazardous waste classification, and IMO\\\/PSPC compliance.\"\n                    }\n                },\n                {\n                    \"@type\": \"Question\",\n                    \"name\": \"What cleanliness grade is required for marine coatings?\",\n                    \"acceptedAnswer\": {\n                        \"@type\": \"Answer\",\n                        \"text\": \"IMO MSC\\\/Circ. 1330 (Performance Standard for Protective Coatings \\u2014 PSPC) specifies Sa 2.5 as the minimum cleanliness grade for ballast tank coatings on new ships. NORSOK M-501, the Norwegian offshore industry standard, also requires Sa 2.5 minimum for most applications with Sa 3 for immersed zones. The SSPC SP 10 standard (Near-White Metal Blast Cleaning) is the US equivalent of Sa 2.5. All three standards also specify minimum surface profile depths, typically 40\\u201370 \\u00b5m Rz.\"\n                    }\n                },\n                {\n                    \"@type\": \"Question\",\n                    \"name\": \"Can garnet be used for shipbuilding blast media?\",\n                    \"acceptedAnswer\": {\n                        \"@type\": \"Answer\",\n                        \"text\": \"Yes. Garnet is widely used for marine and offshore blasting, particularly for maintenance work, field coating application, and open-site hull preparation. It meets the low dust, low free silica, and non-hazardous waste requirements essential for shipyard environments. Garnet in 20\\\/40 to 36\\\/60 mesh achieves Sa 2.5 with 40\\u201370 \\u00b5m Rz profiles on steel at standard blasting pressures. For automated new-build production lines, steel grit is preferred due to its much lower per-cycle cost with reclaim systems.\"\n                    }\n                }\n            ]\n        }\n    ]\n}<\/script>\n\n<style>\n.hlh-c5*,.hlh-c5*::before,.hlh-c5*::after{box-sizing:border-box;margin:0;padding:0}\n.hlh-c5{font-family:'Segoe UI',Arial,sans-serif;font-size:16px;line-height:1.8;color:#1a1a2e;max-width:960px;margin:0 auto;padding:0 16px 60px}\n.hlh-c5 .hlh-hero{background:linear-gradient(135deg,#1A5276 0%,#0d2d47 100%);border-radius:12px;padding:52px 44px;margin-bottom:48px;position:relative;overflow:hidden}\n.hlh-c5 .hlh-hero::before{content:'';position:absolute;top:-60px;right:-60px;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,0.04)}\n.hlh-c5 .hlh-hero-label{display:inline-block;background:rgba(255,255,255,0.12);color:#AED6F1;font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;padding:4px 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18px;font-size:14px;color:#2c3e50;line-height:1.7;border-top:1px solid #D5E8F3;background:#fff}\n.hlh-c5 .hlh-faq-item.open .hlh-faq-a{display:block}\n.hlh-c5 a.hlh-link{color:#1A5276;font-weight:600;text-decoration:underline;text-underline-offset:3px}\n.hlh-c5 a.hlh-link:hover{color:#2980B9}\n.hlh-c5 hr{border:none;border-top:1px solid #EAF0F6;margin:44px 0}\n.hlh-c5 ul,.hlh-c5 ol{padding-left:22px;margin-bottom:18px}\n.hlh-c5 li{margin-bottom:7px;color:#2c3e50;font-size:15px}\n.hlh-c5 strong{color:#0d2d47}\n@media(max-width:640px){.hlh-c5 .hlh-hero{padding:34px 22px}.hlh-c5 .hlh-cta{padding:30px 22px}}\n<\/style>\n\n<div class=\"hlh-c5\">\n\n  <div class=\"hlh-hero\">\n    <div class=\"hlh-hero-label\">Application Guide<\/div>\n    <h1>Blasting Media for Shipbuilding &amp; Marine Steel Structures<\/h1>\n    <p>A complete guide to abrasive blasting media for shipbuilding and marine applications \u2014 covering IMO PSPC and NORSOK M-501 compliance, hull plate preparation, ballast tank blasting, and offshore maintenance blasting media selection.<\/p>\n    <div class=\"hlh-hero-meta\">\n      <span>Published April 2026<\/span>\n      <span>By Jiangsu Henglihong Technology Co., Ltd.<\/span>\n      <span>~2,100 words \u00b7 10 min read<\/span>\n    <\/div>\n  <\/div>\n\n  <div class=\"hlh-toc\">\n    <div class=\"hlh-toc-title\">Table of Contents<\/div>\n    <ol>\n      <li><a href=\"#marine-overview\">Marine Blasting: Scale and Requirements<\/a><\/li>\n      <li><a href=\"#standards\">Governing Standards: IMO PSPC, NORSOK, SSPC<\/a><\/li>\n      <li><a href=\"#new-build\">New-Build Shipyard: Hull Plate Preparation<\/a><\/li>\n      <li><a href=\"#ballast-tanks\">Ballast Tank Blasting<\/a><\/li>\n      <li><a href=\"#maintenance\">Maintenance &amp; Drydock Blasting<\/a><\/li>\n      <li><a href=\"#offshore\">Offshore Platform &amp; Subsea Structures<\/a><\/li>\n      <li><a href=\"#media-selection\">Marine Application Media Selection Table<\/a><\/li>\n      <li><a href=\"#faq\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/a><\/li>\n    <\/ol>\n  <\/div>\n\n  <h2 id=\"marine-overview\">Marine Blasting: Scale and Requirements<\/h2>\n  <p class=\"hlh-lead\">The marine and offshore industry is one of the largest consumers of abrasive blasting media globally. A single large crude oil tanker requires blasting of 40,000\u201360,000 m\u00b2 of internal ballast tank surfaces alone \u2014 plus hull exterior, cargo holds, and superstructure. With global commercial shipbuilding producing 100+ million gross tonnes annually, the aggregate blasting media demand from this sector runs into millions of tonnes per year.<\/p>\n  <p>Marine blasting applications operate under some of the most stringent coating performance specifications in any industry, reflecting the consequences of coating failure in corrosive seawater immersion service. The IMO PSPC (Performance Standard for Protective Coatings) is now mandatory under SOLAS Chapter II-1 Regulation 3-2 for all new ships over 500 GT, establishing minimum standards for coating system selection, surface preparation, application, and inspection.<\/p>\n  <p>Media selection for marine applications must satisfy three requirements simultaneously: achieving the required surface cleanliness grade (Sa 2.5 minimum for virtually all specifications), producing the required anchor profile depth (typically 40\u201370 \u00b5m Rz), and meeting the environmental and health requirements of the specific application environment \u2014 which in marine settings often means confined spaces, proximity to water, and restricted waste disposal options that make low-dust, non-hazardous media highly advantageous.<\/p>\n\n  <h2 id=\"standards\">Governing Standards: IMO PSPC, NORSOK M-501, SSPC<\/h2>\n\n  <div class=\"hlh-table-wrap\">\n    <table>\n      <thead>\n        <tr><th>Standard<\/th><th>Scope<\/th><th>Min. Cleanliness<\/th><th>Min. Profile (Rz \u00b5m)<\/th><th>Max. Profile (Rz \u00b5m)<\/th><\/tr>\n      <\/thead>\n      <tbody>\n        <tr><td><strong>IMO PSPC (MSC\/Circ.1330)<\/strong><\/td><td>Ballast tanks &amp; void spaces \u2014 new build<\/td><td>Sa 2.5<\/td><td>30<\/td><td>75<\/td><\/tr>\n        <tr><td><strong>NORSOK M-501 Rev.6<\/strong><\/td><td>Norwegian offshore structures<\/td><td>Sa 2.5 (Sa 3 immersed)<\/td><td>50<\/td><td>85<\/td><\/tr>\n        <tr><td><strong>SSPC SP 10<\/strong><\/td><td>Near-White Metal Blast (US equivalent of Sa 2.5)<\/td><td>Near-White Metal<\/td><td>Per coating TDS<\/td><td>Per coating TDS<\/td><\/tr>\n        <tr><td><strong>ISO 8501-1<\/strong><\/td><td>General steel surface cleanliness grades<\/td><td>Sa 2.5 (most specs)<\/td><td>40 (typical)<\/td><td>70 (typical)<\/td><\/tr>\n        <tr><td><strong>ISO 8503<\/strong><\/td><td>Surface profile measurement for blast-cleaned steel<\/td><td>N\/A<\/td><td>Defined by coating spec<\/td><td>Defined by coating spec<\/td><\/tr>\n      <\/tbody>\n    <\/table>\n  <\/div>\n\n  <div class=\"hlh-box hlh-box-blue\">\n    <div class=\"hlh-box-title\">IMO PSPC: The Mandatory Standard for New Vessel Ballast Tanks<\/div>\n    <p>Since 2012, all new commercial vessels over 500 GT must comply with IMO PSPC for ballast tank protective coating systems. PSPC mandates: Sa 2.5 blast cleanliness minimum, surface profile 30\u201375 \u00b5m Rz, salt contamination on the blasted surface below 50 mg\/m\u00b2 NaCl equivalent, and maximum dust level rating 2 per ISO 8502-3. The abrasive blasting media must be certified free of soluble salts, oil, and contaminants that could compromise coating adhesion \u2014 SSPC-AB 1 or equivalent certification is required for all abrasives used on PSPC-compliant projects.<\/p>\n  <\/div>\n\n  <h2 id=\"new-build\">New-Build Shipyard: Hull Plate Preparation<\/h2>\n  <p>In new-build shipyards, structural steel plate and sections are blast-cleaned on automated roller conveyor wheel blast lines before cutting and fabrication into ship sections. This automated pre-treatment \u2014 called &#8220;pre-fabrication priming&#8221; or &#8220;shop priming&#8221; \u2014 is applied immediately after blasting using automated paint spray systems, providing temporary corrosion protection before the plate is processed.<\/p>\n  <p><strong>Standard process:<\/strong> Plates enter the wheel blast line at controlled feed speed. Steel grit (GL grade, G-25 to G-40 is standard) carried in the wheel blast system impacts the plate at high velocity from above and below, cleaning both faces simultaneously to Sa 2.5 with 40\u201365 \u00b5m Rz. Exit the wheel blast line, pass through an automated weld-through shop primer spray booth. Primer DFT is typically 15\u201325 \u00b5m \u2014 thin enough to allow welding without significant fume generation, but providing several weeks of corrosion protection during fabrication.<\/p>\n  <p>Steel grit in a closed-loop reclaim system is the only economically rational media for this application \u2014 the throughput rates (hundreds of metres of plate per hour) and the requirement for 200\u2013300 reuse cycles make any single-use or low-recyclability media completely uncompetitive. For full steel grit technical data: <a class=\"hlh-link\" href=\"https:\/\/hlh-js.com\/resource\/blog\/steel-shot-steel-grit-blasting-media-angular-vs-round-for-surface-prep\/\" target=\"_blank\" rel=\"noopener\">Steel Shot &amp; Steel Grit Blasting Media<\/a>.<\/p>\n\n  <h2 id=\"ballast-tanks\">Ballast Tank Blasting<\/h2>\n  <p>Ballast tank blasting is one of the most critical and technically challenging blasting applications in shipbuilding. Ballast tanks operate in a cyclic wet\/dry environment \u2014 alternating between seawater ballasted and empty deballasted conditions \u2014 creating among the most corrosive service environments for protective coatings. The IMO PSPC standard governs ballast tank coating specification and surface preparation for all new-build vessels.<\/p>\n  <p>Ballast tanks are blasted after structural fabrication is complete \u2014 access is through manholes, with operators working inside the tank structure. Working conditions include confined spaces, poor lighting, restricted access to corners and weld toes, and the requirement to achieve uniform Sa 2.5 cleanliness including inside angles and around weld profile imperfections.<\/p>\n  <p>For new-build ballast tank blasting, portable pneumatic blasting with <strong>garnet (20\/40 to 36\/60 mesh)<\/strong> \u307e\u305f\u306f <strong>steel grit (with portable reclaim)<\/strong> is the standard. Garnet&#8217;s low dust generation is particularly valued in confined ballast tank spaces where ventilation is limited and operator respiratory exposure must be minimized. Salt contamination of the blasted surface must be tested and confirmed below 50 mg\/m\u00b2 NaCl per IMO PSPC before primer application.<\/p>\n\n  <h2 id=\"maintenance\">Maintenance &amp; Drydock Blasting<\/h2>\n  <p>During periodic drydocking (typically every 5 years for commercial vessels), hull external surfaces and internal tank coatings are inspected and repaired or fully recoated. The maintenance blasting environment differs significantly from new-build:<\/p>\n  <ul>\n    <li>Existing coating must be removed to bare metal or to intact, well-adhered primer<\/li>\n    <li>Corroded areas include pitting that requires more aggressive blasting to achieve Sa 2.5 in recesses<\/li>\n    <li>Media containment is essential in dry-dock \u2014 spent media must be collected and classified for disposal<\/li>\n    <li>Contamination from existing coatings (potentially including anti-fouling biocides) affects spent media disposal classification<\/li>\n  <\/ul>\n  <p>Garnet (20\/40 to 36\/60 mesh) and steel grit with portable reclaim systems are the most commonly specified media for drydock maintenance blasting. Garnet&#8217;s non-hazardous waste classification simplifies disposal in most jurisdictions, while steel grit with reclaim offers lower media cost per cycle for high-throughput drydock operations.<\/p>\n\n  <h2 id=\"offshore\">Offshore Platform &amp; Subsea Structures<\/h2>\n  <p>Offshore platform maintenance blasting \u2014 topsides structures, splash zone areas, risers, and secondary steelwork \u2014 operates under NORSOK M-501 (Norwegian sector) or equivalent national standards (ISO 20340 \/ ISO 12944-9). These standards require Sa 2.5 to Sa 3 cleanliness (Sa 3 for continuously immersed zones) with Rz profiles of 50\u201385 \u00b5m.<\/p>\n  <p>The environmental constraints of offshore blasting are severe: proximity to the sea surface means zero tolerance for media or coating debris entering the water; confined platform spaces require low-dust media; and weather exposure during blasting requires rapid completion between primer and topcoat application. Garnet is the dominant media for offshore maintenance blasting \u2014 its very low dust, non-hazardous waste classification, and consistent performance in both dry and wet blast systems make it the best fit for this demanding application. For garnet technical details: <a class=\"hlh-link\" href=\"https:\/\/hlh-js.com\/resource\/blog\/garnet-blasting-media-eco-friendly-performance-for-wet-dry-blasting\/\" target=\"_blank\" rel=\"noopener\">Garnet Blasting Media: Eco-Friendly Performance for Wet &amp; Dry Blasting<\/a>.<\/p>\n\n  <h2 id=\"media-selection\">Marine Application Media Selection Table<\/h2>\n  <div class=\"hlh-table-wrap\">\n    <table>\n      <thead>\n        <tr><th>Marine Application<\/th><th>Primary Media<\/th><th>Alternative<\/th><th>Grit\/Grade<\/th><th>Key Specification<\/th><\/tr>\n      <\/thead>\n      <tbody>\n        <tr><td>New-build hull plate (automated line)<\/td><td>Steel Grit GL<\/td><td>\u2014<\/td><td>G-25\u2013G-40<\/td><td>Sa 2.5, Rz 40\u201365 \u00b5m<\/td><\/tr>\n        <tr><td>New-build ballast tank (portable)<\/td><td>\u30ac\u30fc\u30cd\u30c3\u30c8<\/td><td>Steel Grit + reclaim<\/td><td>20\/40\u201336\/60<\/td><td>IMO PSPC, Sa 2.5, Rz 30\u201375 \u00b5m<\/td><\/tr>\n        <tr><td>Drydock hull maintenance<\/td><td>\u30ac\u30fc\u30cd\u30c3\u30c8<\/td><td>Steel Grit + reclaim<\/td><td>20\/40\u201336\/60<\/td><td>Sa 2.5, Rz 40\u201370 \u00b5m<\/td><\/tr>\n        <tr><td>Offshore topsides maintenance<\/td><td>\u30ac\u30fc\u30cd\u30c3\u30c8<\/td><td>Al\u2082O\u2083<\/td><td>20\/40\u201336\/60 \/ F36\u2013F60<\/td><td>NORSOK M-501, Sa 2.5, Rz 50\u201385 \u00b5m<\/td><\/tr>\n        <tr><td>Offshore immersed zone<\/td><td>\u30ac\u30fc\u30cd\u30c3\u30c8<\/td><td>\u30b9\u30c1\u30fc\u30eb\u30b0\u30ea\u30c3\u30c8<\/td><td>20\/40<\/td><td>Sa 3, Rz 60\u201385 \u00b5m<\/td><\/tr>\n        <tr><td>Marine cargo hold<\/td><td>Steel Grit or Garnet<\/td><td>Al\u2082O\u2083<\/td><td>G-40 \/ 20\/40<\/td><td>Sa 2.5, Rz 40\u201370 \u00b5m<\/td><\/tr>\n        <tr><td>Subsea pipeline field joint<\/td><td>\u30ac\u30fc\u30cd\u30c3\u30c8<\/td><td>Al\u2082O\u2083<\/td><td>36\/60<\/td><td>Sa 2.5, Rz 50\u201375 \u00b5m (FBE spec)<\/td><\/tr>\n      <\/tbody>\n    <\/table>\n  <\/div>\n\n  <div class=\"hlh-cta\">\n    <h3>Source Marine-Grade Blasting Media from Jiangsu Henglihong Technology<\/h3>\n    <p>We supply steel grit (full SAE grade range), aluminum oxide, glass beads, and can source garnet in marine-grade specifications with SSPC-AB 1 compliance, salt contamination certificates, and IMO PSPC documentation. Available in 25 kg bags and 1,000 kg jumbo bags for global shipping.<\/p>\n    <a href=\"https:\/\/hlh-js.com\/contact\/\" target=\"_blank\" rel=\"noopener\">Request Marine Grade Documentation<\/a>\n  <\/div>\n\n  <hr>\n\n  <h2 id=\"faq\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n  <div class=\"hlh-faq\">\n    <div class=\"hlh-faq-item\">\n      <button class=\"hlh-faq-q\" onclick=\"hlhC5Toggle(this)\">What blasting media is used in shipbuilding?<span class=\"hlh-faq-arrow\">\u25bc<\/span><\/button>\n      <div class=\"hlh-faq-a\">Shipbuilding uses two main media types. For automated new-build plate preparation on wheel blast lines, steel grit GL grade (G-25 to G-40) is standard \u2014 delivering Sa 2.5 and 40\u201365 \u00b5m Rz at very low per-cycle cost. For portable maintenance blasting and ballast tank work, garnet (20\/40 to 36\/60 mesh) is most commonly specified for its low dust, non-hazardous waste classification, and IMO PSPC compliance.<\/div>\n    <\/div>\n    <div class=\"hlh-faq-item\">\n      <button class=\"hlh-faq-q\" onclick=\"hlhC5Toggle(this)\">What cleanliness grade is required for marine coatings?<span class=\"hlh-faq-arrow\">\u25bc<\/span><\/button>\n      <div class=\"hlh-faq-a\">Sa 2.5 (near-white metal) is the minimum cleanliness grade required by IMO PSPC for ballast tanks and by NORSOK M-501 for offshore structures. Sa 3 (white metal) is required for continuously immersed zones in NORSOK applications. Profile depth requirements are 30\u201375 \u00b5m Rz per IMO PSPC and 50\u201385 \u00b5m Rz per NORSOK M-501.<\/div>\n    <\/div>\n    <div class=\"hlh-faq-item\">\n      <button class=\"hlh-faq-q\" onclick=\"hlhC5Toggle(this)\">Can garnet be used for shipbuilding blast media?<span class=\"hlh-faq-arrow\">\u25bc<\/span><\/button>\n      <div class=\"hlh-faq-a\">Yes. Garnet is widely used for marine maintenance blasting, ballast tank preparation, and offshore work. It achieves Sa 2.5 with 40\u201370 \u00b5m Rz profiles at standard pressures, generates very low dust, and is classified non-hazardous waste in most jurisdictions \u2014 critical advantages in marine environments. For high-volume automated new-build plate preparation, steel grit with reclaim is preferred due to its much lower per-cycle cost.<\/div>\n    <\/div>\n  <\/div>\n\n  <hr>\n\n  <div class=\"hlh-related\">\n    <div class=\"hlh-related-title\">Related Guides in This Series<\/div>\n    <div class=\"hlh-related-grid\">\n      <a class=\"hlh-related-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/abrasive-blasting-media-complete-guide-to-types-properties-selection\/\" target=\"_blank\" rel=\"noopener\">\n        <div class=\"rc-label\">Complete Guide<\/div>\n        <div class=\"rc-title\">Abrasive Blasting Media: Complete Guide to Types, Properties &amp; Selection<\/div>\n      <\/a>\n      <a class=\"hlh-related-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/garnet-blasting-media-eco-friendly-performance-for-wet-dry-blasting\/\" target=\"_blank\" rel=\"noopener\">\n        <div class=\"rc-label\">Media Types<\/div>\n        <div class=\"rc-title\">Garnet Blasting Media: Eco-Friendly Performance for Wet &amp; Dry Blasting<\/div>\n      <\/a>\n      <a class=\"hlh-related-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/abrasive-blasting-media-for-rust-removal-best-types-techniques\/\" target=\"_blank\" rel=\"noopener\">\n        <div class=\"rc-label\">Application Guide<\/div>\n        <div class=\"rc-title\">Abrasive Blasting Media for Rust Removal: Best Types &amp; Techniques<\/div>\n      <\/a>\n      <a class=\"hlh-related-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silica-sand-in-abrasive-blasting-health-risks-osha-rules-safe-alternatives\/\" target=\"_blank\" rel=\"noopener\">\n        <div class=\"rc-label\">Safety &amp; Compliance<\/div>\n        <div class=\"rc-title\">Silica Sand in Abrasive Blasting: Health Risks, OSHA Rules &amp; Safe Alternatives<\/div>\n      <\/a>\n    <\/div>\n  <\/div>\n\n<\/div>\n\n<script>\n(function(){\n  function hlhC5Toggle(btn){\n    var item=btn.closest('.hlh-faq-item');\n    var isOpen=item.classList.contains('open');\n    document.querySelectorAll('.hlh-c5 .hlh-faq-item').forEach(function(el){el.classList.remove('open');});\n    if(!isOpen){item.classList.add('open');}\n  }\n  window.hlhC5Toggle=hlhC5Toggle;\n})();\n<\/script>","protected":false},"excerpt":{"rendered":"<p>Application Guide Blasting Media for Shipbuilding &amp; Marine Steel Structures  [&#8230;]<\/p>","protected":false},"author":1,"featured_media":12776,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[62,175,138],"tags":[],"class_list":["post-12730","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-industry","category-resource"],"_links":{"self":[{"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/posts\/12730","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/comments?post=12730"}],"version-history":[{"count":2,"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/posts\/12730\/revisions"}],"predecessor-version":[{"id":12732,"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/posts\/12730\/revisions\/12732"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/media\/12776"}],"wp:attachment":[{"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/media?parent=12730"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/categories?post=12730"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hlh-js.com\/ja\/wp-json\/wp\/v2\/tags?post=12730"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}