{"id":12811,"date":"2026-04-13T02:24:22","date_gmt":"2026-04-13T02:24:22","guid":{"rendered":"https:\/\/hlh-js.com\/?p=12811"},"modified":"2026-04-14T03:24:08","modified_gmt":"2026-04-14T03:24:08","slug":"silicon-carbide-blast-media-hardest-abrasive-explained","status":"publish","type":"post","link":"https:\/\/hlh-js.com\/fr\/resource\/blog\/silicon-carbide-blast-media-hardest-abrasive-explained\/","title":{"rendered":"Silicon Carbide Blast Media: The Hardest Abrasive Explained"},"content":{"rendered":"<!-- ============================================================\r\n     CLUSTER 8: Silicon Carbide Blast Media \u2014 Hardest Abrasive Explained\r\n     Jiangsu Henglihong Technology Co., Ltd.\r\n     URL: https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-blast-media-hardest-abrasive-explained\/\r\n     Pillar back-link: https:\/\/hlh-js.com\/resource\/blog\/blasting-media\/\r\n     Word count target: ~1,800 words\r\n     Updated: March 2026\r\n     ============================================================ --><!-- ===== JSON-LD SCHEMA ===== -->\r\n<p><script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@graph\": [\n        {\n            \"@type\": \"Article\",\n            \"@id\": \"https:\\\/\\\/hlh-js.com\\\/resource\\\/blog\\\/silicon-carbide-blast-media-hardest-abrasive-explained\\\/#article\",\n            \"headline\": \"Silicon Carbide Blast Media: The Hardest Abrasive Explained \\u2014 Complete Guide (2026)\",\n            \"description\": \"A complete technical guide to silicon carbide blast media \\u2014 black vs green SiC grades, Mohs 9.5 hardness, grit sizing, glass etching, ceramic surface prep, semiconductor applications, cost analysis, and when to choose SiC over aluminum oxide.\",\n            \"image\": \"https:\\\/\\\/hlh-js.com\\\/wp-content\\\/uploads\\\/silicon-carbide-blast-media-guide.jpg\",\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                \"logo\": {\n                    \"@type\": \"ImageObject\",\n                    \"url\": \"https:\\\/\\\/hlh-js.com\\\/wp-content\\\/uploads\\\/logo.png\"\n                }\n            },\n            \"datePublished\": \"2026-03-01\",\n            \"dateModified\": \"2026-03-23\",\n            \"mainEntityOfPage\": \"https:\\\/\\\/hlh-js.com\\\/resource\\\/blog\\\/silicon-carbide-blast-media-hardest-abrasive-explained\\\/\"\n        },\n        {\n            \"@type\": \"FAQPage\",\n            \"@id\": \"https:\\\/\\\/hlh-js.com\\\/resource\\\/blog\\\/silicon-carbide-blast-media-hardest-abrasive-explained\\\/#faq\",\n            \"mainEntity\": [\n                {\n                    \"@type\": \"Question\",\n                    \"name\": \"What is silicon carbide blast media used for?\",\n                    \"acceptedAnswer\": {\n                        \"@type\": \"Answer\",\n                        \"text\": \"Silicon carbide blast media is used for surface preparation and etching of extremely hard substrates that would wear out aluminum oxide too quickly \\u2014 primarily glass etching and carving, stone monument texturing, ceramic and cemented carbide component preparation, silicon wafer and semiconductor substrate processing, and surface preparation of technical ceramics prior to thermal spray or metallization coating. Its Mohs 9.5 hardness and extremely sharp fracture pattern make it the fastest-cutting commercially available blasting abrasive.\"\n                    }\n                },\n                {\n                    \"@type\": \"Question\",\n                    \"name\": \"What is the hardness of silicon carbide?\",\n                    \"acceptedAnswer\": {\n                        \"@type\": \"Answer\",\n                        \"text\": \"Silicon carbide has a Mohs hardness of 9.5, making it the hardest commercially available blasting abrasive. It is harder than aluminum oxide (Mohs 9.0), steel grit (Mohs ~8.0), garnet (Mohs 7.5\\u20138.0), and glass bead (Mohs 5.5\\u20136.0). On the Vickers hardness scale, SiC measures approximately 2,400\\u20132,800 HV depending on grade and crystal structure.\"\n                    }\n                },\n                {\n                    \"@type\": \"Question\",\n                    \"name\": \"What is the difference between black and green silicon carbide?\",\n                    \"acceptedAnswer\": {\n                        \"@type\": \"Answer\",\n                        \"text\": \"Black silicon carbide contains approximately 98% SiC and is the standard industrial grade for most blasting, lapping, and grinding applications. Green silicon carbide is purer (99%+ SiC), harder, and more friable \\u2014 it fractures more readily into new sharp cutting edges, making it faster-cutting for precision applications such as semiconductor wafer processing, optical component preparation, and the finest surface finishing work. Green SiC commands a 20\\u201340% price premium over black SiC.\"\n                    }\n                },\n                {\n                    \"@type\": \"Question\",\n                    \"name\": \"Is silicon carbide better than aluminum oxide for blasting?\",\n                    \"acceptedAnswer\": {\n                        \"@type\": \"Answer\",\n                        \"text\": \"Silicon carbide is harder and cuts faster than aluminum oxide, but it is not universally better \\u2014 it is more specialized. For general industrial surface preparation of carbon steel, stainless steel, and most metals, aluminum oxide is the preferred choice due to its superior recyclability (100\\u2013200 cycles vs 10\\u201330 for SiC), lower cost, and adequate hardness for the task. Silicon carbide is the correct choice only when the substrate is too hard for aluminum oxide to work efficiently \\u2014 glass, technical ceramics, cemented carbide \\u2014 or when the absolute fastest cutting speed on a hard material justifies the cost premium.\"\n                    }\n                }\n            ]\n        }\n    ]\n}<\/script><\/p>\r\n<!-- ===== EMBEDDED CSS ===== -->\r\n<p><style>\r\n  .c8-article *,\r\n  .c8-article *::before,\r\n  .c8-article *::after { box-sizing: border-box; margin: 0; padding: 0; }\r\n\r\n  .c8-article {\r\n    font-family: 'Georgia', 'Times New Roman', serif;\r\n    font-size: 17px;\r\n    line-height: 1.85;\r\n    color: #1a1a2e;\r\n    max-width: 860px;\r\n    margin: 0 auto;\r\n    padding: 0 20px 60px;\r\n  }\r\n\r\n  \/* --- Typography --- *\/\r\n  .c8-article h2 {\r\n    font-family: 'Trebuchet MS', 'Gill Sans', sans-serif;\r\n    font-size: 1.75rem;\r\n    font-weight: 700;\r\n    color: #0d2137;\r\n    margin: 52px 0 16px;\r\n    padding-bottom: 10px;\r\n    border-bottom: 3px solid #e05f1b;\r\n    letter-spacing: -0.3px;\r\n  }\r\n  .c8-article h3 {\r\n    font-family: 'Trebuchet MS', 'Gill Sans', sans-serif;\r\n    font-size: 1.2rem;\r\n    font-weight: 700;\r\n    color: #0d2137;\r\n    margin: 34px 0 12px;\r\n  }\r\n  .c8-article h4 {\r\n    font-family: 'Trebuchet MS', 'Gill Sans', sans-serif;\r\n    font-size: 1rem;\r\n    font-weight: 700;\r\n    color: #1e3a5f;\r\n    margin: 22px 0 8px;\r\n  }\r\n  .c8-article p  { margin-bottom: 18px; 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}\r\n  .c8-faq-icon {\r\n    font-size: 1.2rem;\r\n    color: #e05f1b;\r\n    transition: transform 0.25s;\r\n    flex-shrink: 0;\r\n    margin-left: 12px;\r\n    font-style: normal;\r\n  }\r\n  .c8-faq-item.open .c8-faq-icon { transform: rotate(45deg); }\r\n  .c8-faq-a {\r\n    display: none;\r\n    padding: 15px 20px 17px;\r\n    font-size: 0.92rem;\r\n    line-height: 1.75;\r\n    color: #3a4a5a;\r\n    border-top: 1px solid #d4dde8;\r\n  }\r\n  .c8-faq-item.open .c8-faq-a { display: block; }\r\n\r\n  \/* --- CTA --- *\/\r\n  .c8-cta {\r\n    background: linear-gradient(135deg, #0d2137 0%, #1e3a5f 100%);\r\n    border-radius: 12px;\r\n    padding: 38px 42px;\r\n    margin-top: 50px;\r\n    text-align: center;\r\n    color: #fff;\r\n  }\r\n  .c8-cta h2 {\r\n    color: #fff; border: none; padding: 0;\r\n    margin: 0 0 10px; font-size: 1.55rem;\r\n  }\r\n  .c8-cta p {\r\n    color: rgba(255,255,255,0.75);\r\n    max-width: 520px; margin: 0 auto 22px; font-size: 0.98rem;\r\n  }\r\n  .c8-cta-btn {\r\n    display: inline-block;\r\n    background: #e05f1b;\r\n    color: #fff !important;\r\n    font-family: 'Trebuchet MS', sans-serif;\r\n    font-size: 0.95rem; font-weight: 700;\r\n    padding: 13px 34px; border-radius: 6px;\r\n    text-decoration: none !important; border: none !important;\r\n    transition: background 0.2s, transform 0.2s;\r\n  }\r\n  .c8-cta-btn:hover { background: #c05010 !important; transform: translateY(-1px); }\r\n\r\n  \/* --- Responsive --- *\/\r\n  @media (max-width: 680px) {\r\n    .c8-hero { padding: 30px 22px 26px; }\r\n    .c8-hero h1 { font-size: 1.6rem; }\r\n    .c8-specs-bar  { grid-template-columns: 1fr 1fr; }\r\n    .c8-grade-grid { grid-template-columns: 1fr; }\r\n    .c8-app-grid   { grid-template-columns: 1fr 1fr; }\r\n    .c8-cost-box   { grid-template-columns: 1fr; gap: 12px; }\r\n    .c8-hardness-media { width: 100px; font-size: 0.78rem; }\r\n    .c8-cta { padding: 26px 20px; }\r\n    .c8-article h2 { font-size: 1.38rem; }\r\n  }\r\n  @media (max-width: 420px) {\r\n    .c8-app-grid { grid-template-columns: 1fr; }\r\n  }\r\n<\/style><\/p>\r\n<!-- ===== ARTICLE WRAPPER ===== -->\r\n<article class=\"c8-article\"><!-- HERO -->\r\n<div class=\"c8-hero\"><span class=\"c8-hero-label\">In-Depth Product Guide \u00b7 March 2026<\/span>\r\n<h1>Silicon Carbide Blast Media: The Hardest Abrasive Explained<\/h1>\r\n<p class=\"c8-hero-sub\">At Mohs 9.5, silicon carbide is the hardest commercially available blasting abrasive \u2014 faster-cutting than aluminum oxide, capable of etching glass, texturing stone, and preparing surfaces that would defeat every other media type. This guide covers black vs green grades, grit sizing, key applications, cost economics, and when SiC is the only viable choice.<\/p>\r\n<div class=\"c8-hero-meta\">Updated March 2026 \u00a0\u00b7\u00a0 10-minute read \u00a0\u00b7\u00a0 Jiangsu Henglihong Technology Co., Ltd.<\/div>\r\n<\/div>\r\n<!-- KEY SPECS -->\r\n<div class=\"c8-specs-bar\">\r\n<div class=\"c8-spec-card\"><span class=\"c8-spec-num\">9.5<\/span> <span class=\"c8-spec-label\">Mohs hardness \u2014 hardest commercial blasting abrasive available<\/span><\/div>\r\n<div class=\"c8-spec-card\"><span class=\"c8-spec-num\">2,600 HV<\/span> <span class=\"c8-spec-label\">Vickers hardness \u2014 harder than corundum, nearly as hard as diamond<\/span><\/div>\r\n<div class=\"c8-spec-card\"><span class=\"c8-spec-num\">98\u201399%+<\/span> <span class=\"c8-spec-label\">SiC purity \u2014 black (98%) vs green (99%+) grades<\/span><\/div>\r\n<div class=\"c8-spec-card\"><span class=\"c8-spec-num\">F12\u2013F1200<\/span> <span class=\"c8-spec-label\">Available grit range \u2014 from aggressive blasting to ultra-fine lapping<\/span><\/div>\r\n<\/div>\r\n<!-- PILLAR BACK-LINK -->\r\n<div class=\"c8-pillar-link\">\ud83d\udcd6Part of our complete abrasive blasting resource library. For a full overview of all media types and selection guidance, visit the <a href=\"https:\/\/hlh-js.com\/resource\/blog\/blasting-media\/\" target=\"_blank\" rel=\"noopener\">Blasting Media: Complete Industry Guide<\/a>.<\/div>\r\n<!-- TOC --><nav class=\"c8-toc\" aria-label=\"Table of Contents\">\r\n<div class=\"c8-toc-title\">Table of Contents<\/div>\r\n<ol>\r\n<li><a href=\"#c8-what-is\">What Is Silicon Carbide Blast Media?<\/a><\/li>\r\n<li><a href=\"#c8-hardness\">Hardness in Context \u2014 How SiC Compares<\/a><\/li>\r\n<li><a href=\"#c8-grades\">Black vs Green Silicon Carbide<\/a><\/li>\r\n<li><a href=\"#c8-grit\">Grit Size Selection Guide<\/a><\/li>\r\n<li><a href=\"#c8-applications\">Applications by Industry<\/a><\/li>\r\n<li><a href=\"#c8-vs-oxide\">Silicon Carbide vs Aluminum Oxide \u2014 When to Choose Each<\/a><\/li>\r\n<li><a href=\"#c8-cost\">Cost Economics<\/a><\/li>\r\n<li><a href=\"#c8-sourcing\">Sourcing and Quality Standards<\/a><\/li>\r\n<li><a href=\"#c8-faq\">Questions fr\u00e9quemment pos\u00e9es<\/a><\/li>\r\n<\/ol>\r\n<\/nav><!-- SECTION 1 -->\r\n<h2 id=\"c8-what-is\">1. What Is Silicon Carbide Blast Media?<\/h2>\r\n<p>Silicon carbide (SiC) \u2014 also known by the trade name <em>Carborundum<\/em>, coined by its inventor Edward Acheson in 1891 \u2014 is a synthetic ceramic compound produced by fusing silica sand and petroleum coke in an electric resistance furnace (the Acheson process) at temperatures exceeding 2,000 \u00b0C. The resulting crystalline material is among the hardest substances known to chemistry, sitting at Mohs 9.5 on the hardness scale \u2014 harder than corundum (aluminum oxide), harder than topaz, harder than ruby, and surpassed only by diamond (Mohs 10) and boron carbide among commercially significant materials.<\/p>\r\n<p>When crushed and sized into blasting grit, silicon carbide produces extremely sharp, angular particles with a characteristic splintery fracture pattern. Each fracture event during blasting exposes new, razor-sharp cutting edges \u2014 a property called <strong>friability<\/strong> \u2014 which means SiC maintains cutting aggression throughout its service life rather than rounding off as softer abrasives do. This self-sharpening behavior, combined with its exceptional hardness, makes silicon carbide the fastest-cutting blasting abrasive commercially available as of March 2026.<\/p>\r\n<p>Silicon carbide is chemically inert, contains no free crystalline silica, and is non-toxic \u2014 making it compliant with OSHA 29 CFR 1926.1153 and EU Directive 2017\/2398 silica exposure regulations. Standard blasting PPE remains mandatory, but SiC carries none of the silicosis risk associated with legacy silica sand blasting operations.<\/p>\r\n<div class=\"c8-highlight\"><span class=\"c8-highlight-label\">Positioning<\/span> Silicon carbide is not a general-purpose blasting media. Its high cost and moderate recycle life mean it is uneconomical for standard carbon steel surface preparation where <a href=\"https:\/\/hlh-js.com\/resource\/blog\/aluminum-oxide-blast-media-uses-grit-guide\/\" target=\"_blank\" rel=\"noopener\">oxyde d'aluminium<\/a> performs adequately at a fraction of the price. SiC is the correct specification only when the substrate is hard enough that aluminum oxide would work too slowly or wear out too fast \u2014 glass, technical ceramics, cemented carbide, and silicon \u2014 or when the absolute maximum cutting speed on any hard surface justifies the cost premium.<\/div>\r\n<!-- SECTION 2 -->\r\n<h2 id=\"c8-hardness\">2. Hardness in Context \u2014 How SiC Compares<\/h2>\r\n<p>To understand why silicon carbide occupies such a unique position in the blasting media market, it helps to place its hardness in context against the full range of commercial abrasives and common industrial materials.<\/p>\r\n<div class=\"c8-hardness-chart\">\r\n<h3>Mohs Hardness Comparison \u2014 Blasting Media &amp; Common Materials<\/h3>\r\n<div class=\"c8-hardness-row top\"><span class=\"c8-hardness-media\">Silicon Carbide (SiC)<\/span>\r\n<div class=\"c8-hardness-bar-bg\">\r\n<div class=\"c8-hardness-bar-fill\" style=\"width: 95%; background: linear-gradient(90deg,#2a2a2a,#6a6a8a);\">\u00a0<\/div>\r\n<\/div>\r\n<span class=\"c8-hardness-val\">9.5<\/span><\/div>\r\n<div class=\"c8-hardness-row\"><span class=\"c8-hardness-media\">Oxyde d'aluminium<\/span>\r\n<div class=\"c8-hardness-bar-bg\">\r\n<div class=\"c8-hardness-bar-fill\" style=\"width: 90%; background: linear-gradient(90deg,#8a5c1e,#c4924a);\">\u00a0<\/div>\r\n<\/div>\r\n<span class=\"c8-hardness-val\">9.0<\/span><\/div>\r\n<div class=\"c8-hardness-row\"><span class=\"c8-hardness-media\">Steel Grit \/ Shot<\/span>\r\n<div class=\"c8-hardness-bar-bg\">\r\n<div class=\"c8-hardness-bar-fill\" style=\"width: 80%; background: linear-gradient(90deg,#3a2010,#7a5030);\">\u00a0<\/div>\r\n<\/div>\r\n<span class=\"c8-hardness-val\">~8.0<\/span><\/div>\r\n<div class=\"c8-hardness-row\"><span class=\"c8-hardness-media\">Grenat<\/span>\r\n<div class=\"c8-hardness-bar-bg\">\r\n<div class=\"c8-hardness-bar-fill\" style=\"width: 77%; background: linear-gradient(90deg,#7a2e1a,#b06040);\">\u00a0<\/div>\r\n<\/div>\r\n<span class=\"c8-hardness-val\">7.5\u20138<\/span><\/div>\r\n<div class=\"c8-hardness-row\"><span class=\"c8-hardness-media\">Glass Bead<\/span>\r\n<div class=\"c8-hardness-bar-bg\">\r\n<div class=\"c8-hardness-bar-fill\" style=\"width: 58%; background: linear-gradient(90deg,#1e3a5f,#4a7abf);\">\u00a0<\/div>\r\n<\/div>\r\n<span class=\"c8-hardness-val\">5.5\u20136<\/span><\/div>\r\n<div class=\"c8-hardness-row\"><span class=\"c8-hardness-media\">Supports en plastique<\/span>\r\n<div class=\"c8-hardness-bar-bg\">\r\n<div class=\"c8-hardness-bar-fill\" style=\"width: 35%; background: linear-gradient(90deg,#2e6b4a,#5aaa7a);\">\u00a0<\/div>\r\n<\/div>\r\n<span class=\"c8-hardness-val\">3\u20134<\/span><\/div>\r\n<\/div>\r\n<p>The 0.5-point Mohs difference between silicon carbide (9.5) and aluminum oxide (9.0) understates the practical performance gap. The Mohs scale is not linear \u2014 each step represents a geometrically larger increase in hardness. Silicon carbide is measurably harder than aluminum oxide in abrasive testing, cuts through glass and ceramics at a rate that aluminum oxide cannot match, and maintains cutting performance on extremely hard substrates where aluminum oxide particles would round off and lose effectiveness within a short blast cycle.<\/p>\r\n<!-- SECTION 3 -->\r\n<h2 id=\"c8-grades\">3. Black vs Green Silicon Carbide<\/h2>\r\n<p>Silicon carbide for industrial blasting and abrasive applications is produced in two principal grades that differ in purity, crystal structure, and performance characteristics.<\/p>\r\n<div class=\"c8-grade-grid\">\r\n<div class=\"c8-grade-card\">\r\n<div class=\"c8-grade-header black\">Black Silicon Carbide<\/div>\r\n<div class=\"c8-grade-body\">\r\n<div class=\"c8-grade-row\"><span class=\"c8-grade-label\">SiC purity<\/span><span class=\"c8-grade-val\">~98%<\/span><\/div>\r\n<div class=\"c8-grade-row\"><span class=\"c8-grade-label\">Mohs hardness<\/span><span class=\"c8-grade-val\">9.1\u20139.3<\/span><\/div>\r\n<div class=\"c8-grade-row\"><span class=\"c8-grade-label\">Vickers hardness<\/span><span class=\"c8-grade-val\">~2,400 HV<\/span><\/div>\r\n<div class=\"c8-grade-row\"><span class=\"c8-grade-label\">Friability<\/span><span class=\"c8-grade-val\">Medium<\/span><\/div>\r\n<div class=\"c8-grade-row\"><span class=\"c8-grade-label\">Couleur<\/span><span class=\"c8-grade-val\">Black \/ dark grey<\/span><\/div>\r\n<div class=\"c8-grade-row\"><span class=\"c8-grade-label\">Relative cost<\/span><span class=\"c8-grade-val\">Lower (standard)<\/span><\/div>\r\n<div class=\"c8-grade-row\"><span class=\"c8-grade-label\">Best for<\/span><span class=\"c8-grade-val\">General hard substrate blasting, stone, glass, ceramics<\/span><\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"c8-grade-card\">\r\n<div class=\"c8-grade-header green\">Green Silicon Carbide<\/div>\r\n<div class=\"c8-grade-body\">\r\n<div class=\"c8-grade-row\"><span class=\"c8-grade-label\">SiC purity<\/span><span class=\"c8-grade-val\">99%+<\/span><\/div>\r\n<div class=\"c8-grade-row\"><span class=\"c8-grade-label\">Mohs hardness<\/span><span class=\"c8-grade-val\">9.4\u20139.5<\/span><\/div>\r\n<div class=\"c8-grade-row\"><span class=\"c8-grade-label\">Vickers hardness<\/span><span class=\"c8-grade-val\">~2,600\u20132,800 HV<\/span><\/div>\r\n<div class=\"c8-grade-row\"><span class=\"c8-grade-label\">Friability<\/span><span class=\"c8-grade-val\">Higher \u2014 more self-sharpening<\/span><\/div>\r\n<div class=\"c8-grade-row\"><span class=\"c8-grade-label\">Couleur<\/span><span class=\"c8-grade-val\">Green \/ iridescent<\/span><\/div>\r\n<div class=\"c8-grade-row\"><span class=\"c8-grade-label\">Relative cost<\/span><span class=\"c8-grade-val\">20\u201340% higher than black<\/span><\/div>\r\n<div class=\"c8-grade-row\"><span class=\"c8-grade-label\">Best for<\/span><span class=\"c8-grade-val\">Semiconductor wafers, optical components, precision ceramics<\/span><\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<p>For the large majority of blasting applications \u2014 glass etching, stone texturing, ceramic surface preparation, and hard material cleaning \u2014 <strong>black silicon carbide<\/strong> is the standard and correct specification. Its slightly lower purity does not affect performance in these applications, and the cost savings over green SiC are significant at production volumes. <strong>Green silicon carbide<\/strong> is reserved for applications where maximum purity, absolute maximum hardness, or the highest cutting speed per unit of abrasive consumed is a documented requirement \u2014 primarily semiconductor processing, optical component preparation, and the finest precision lapping operations.<\/p>\r\n<!-- SECTION 4 -->\r\n<h2 id=\"c8-grit\">4. Grit Size Selection Guide<\/h2>\r\n<p>Silicon carbide for blasting and surface preparation is sized using the FEPA F-grade system (for macro grits F12\u2013F220) and FEPA P-grade system (for finer micro grits up to P2500 and beyond used in lapping and polishing). For blasting applications, the practical range spans F12 (very coarse, maximum profile) through F220 (fine, precision finishing), with specialized micro grits used in semiconductor and optical processing.<\/p>\r\n<div class=\"c8-table-wrap\">\r\n<table class=\"c8-table\">\r\n<thead>\r\n<tr>\r\n<th>FEPA Grade<\/th>\r\n<th>Particle Size (\u00b5m)<\/th>\r\n<th>Profile \/ Texture<\/th>\r\n<th>Primary Application<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td>F12\u2013F16<\/td>\r\n<td>1,180\u20132,360<\/td>\r\n<td>Very coarse \/ deep<\/td>\r\n<td>Maximum aggression on very hard materials; thick scale removal from ceramic components<\/td>\r\n<\/tr>\r\n<tr class=\"c8-pop\">\r\n<td>F24\u2013F36 <span class=\"c8-badge c8-badge-pop\">Most used<\/span><\/td>\r\n<td>500\u20131,000<\/td>\r\n<td>Coarse \u2014 deep etch<\/td>\r\n<td>Glass carving and heavy etching, stone monument texturing, coarse ceramic prep<\/td>\r\n<\/tr>\r\n<tr class=\"c8-pop\">\r\n<td>F46\u2013F60 <span class=\"c8-badge c8-badge-pop\">Most used<\/span><\/td>\r\n<td>250\u2013500<\/td>\r\n<td>Medium etch<\/td>\r\n<td>General glass etching, architectural glass, silicon carbide and ceramic surface prep<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>F80\u2013F100<\/td>\r\n<td>150\u2013250<\/td>\r\n<td>Fine etch \/ frosting<\/td>\r\n<td>Fine glass frosting, controlled ceramic texturing, pre-metallization surface prep<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>F120\u2013F180<\/td>\r\n<td>63\u2013150<\/td>\r\n<td>Very fine \/ matte<\/td>\r\n<td>Optical glass matting, precision ceramic conditioning, pre-coating surface activation<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>F220+ \/ Micro grits <span class=\"c8-badge c8-badge-semi\">Semiconductor<\/span><\/td>\r\n<td>&lt;63<\/td>\r\n<td>Ultra-fine \/ polish<\/td>\r\n<td>Silicon wafer processing, optical component lapping, precision ceramic finishing<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n<p style=\"font-size: 0.82rem; color: #7a8a9a; margin-top: -16px;\">Texture depth decreases with increasing FEPA grade number (finer particles). For glass etching, the choice of grit controls whether the result is a heavy carved texture (F24\u2013F36) or a smooth frosted effect (F80\u2013F120). Always test on scrap material before committing to a production grit size.<\/p>\r\n<!-- SECTION 5 -->\r\n<h2 id=\"c8-applications\">5. Applications by Industry<\/h2>\r\n<p>Silicon carbide blast media serves a specific and irreplaceable role in applications where substrate hardness, required cutting speed, or surface quality demands exceed what any other commercial abrasive can deliver.<\/p>\r\n<div class=\"c8-app-grid\">\r\n<div class=\"c8-app-card\"><span class=\"c8-app-icon\">\ud83e\ude9f<\/span>\r\n<h4>Glass Etching &amp; Carving<\/h4>\r\n<p>The dominant abrasive for artistic and architectural glass etching, sandblasting of decorative glassware, and glass carving for signage, memorials, and interior design applications. SiC cuts glass cleanly at speeds no other abrasive matches. F24\u2013F60 covers most glass work.<\/p>\r\n<\/div>\r\n<div class=\"c8-app-card\"><span class=\"c8-app-icon\">\ud83e\udea8<\/span>\r\n<h4>Stone &amp; Monument Texturing<\/h4>\r\n<p>Surface texturing of granite, marble, limestone, and sandstone for architectural panels, monuments, gravestones, and decorative paving. SiC&#8217;s hardness allows effective work on granite and quartzite where softer abrasives stall. F24\u2013F46 for heavy texturing; F60\u2013F80 for finer finishes.<\/p>\r\n<\/div>\r\n<div class=\"c8-app-card\"><span class=\"c8-app-icon\">\u2699\ufe0f<\/span>\r\n<h4>Technical Ceramics<\/h4>\r\n<p>Surface preparation of alumina, zirconia, silicon nitride, and cemented carbide components prior to thermal spray coating, brazing, or metallization. SiC is one of the few abrasives hard enough to effectively profile these materials without excessive media consumption.<\/p>\r\n<\/div>\r\n<div class=\"c8-app-card\"><span class=\"c8-app-icon\">\ud83d\udca1<\/span>\r\n<h4>Semiconductor Processing<\/h4>\r\n<p>Green silicon carbide micro grits (F220\u2013F1200) are used in the lapping and conditioning of silicon wafers, sapphire substrates, and compound semiconductor materials. This is a precision, tightly controlled application with stringent particle size distribution requirements.<\/p>\r\n<\/div>\r\n<div class=\"c8-app-card\"><span class=\"c8-app-icon\">\ud83d\udd2c<\/span>\r\n<h4>Optical Components<\/h4>\r\n<p>Matting and controlled surface finishing of optical glass lenses, prisms, and mirrors where precise surface roughness is required. Fine-to-ultra-fine SiC grits (F120\u2013F400) produce consistent matte surfaces with controlled Ra values for optical diffusion applications.<\/p>\r\n<\/div>\r\n<div class=\"c8-app-card\"><span class=\"c8-app-icon\">\ud83c\udfed<\/span>\r\n<h4>Hard Refractory &amp; Carbide Parts<\/h4>\r\n<p>Cleaning and surface activation of tungsten carbide dies, boron carbide nozzles, and refractory ceramic components in tooling and wear applications. When the workpiece hardness approaches or exceeds aluminum oxide, SiC is the only practical blasting abrasive alternative.<\/p>\r\n<\/div>\r\n<\/div>\r\n<!-- SECTION 6 -->\r\n<h2 id=\"c8-vs-oxide\">6. Silicon Carbide vs Aluminum Oxide \u2014 When to Choose Each<\/h2>\r\n<p>The most common selection decision involving silicon carbide is whether it offers a meaningful advantage over <a href=\"https:\/\/hlh-js.com\/resource\/blog\/aluminum-oxide-blast-media-uses-grit-guide\/\" target=\"_blank\" rel=\"noopener\">oxyde d'aluminium<\/a> for a given application. The answer is nuanced and heavily application-dependent.<\/p>\r\n<div class=\"c8-vs-table-wrap\">\r\n<table class=\"c8-vs-table\">\r\n<thead>\r\n<tr>\r\n<th>Param\u00e8tres<\/th>\r\n<th>Carbure de silicium<\/th>\r\n<th>Oxyde d'aluminium<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td>Mohs hardness<\/td>\r\n<td><span class=\"c8-win\">9.5 \u25b2<\/span><\/td>\r\n<td>9.0<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Cutting speed on hard substrates<\/td>\r\n<td><span class=\"c8-win\">Faster \u25b2<\/span><\/td>\r\n<td>Slower on glass\/ceramic<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Recyclabilit\u00e9<\/td>\r\n<td><span class=\"c8-lose\">10\u201330 cycles \u25bc<\/span><\/td>\r\n<td><span class=\"c8-win\">100\u2013200 cycles \u25b2<\/span><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Unit price (USD\/MT)<\/td>\r\n<td><span class=\"c8-lose\">$1,400\u20132,200 \u25bc<\/span><\/td>\r\n<td><span class=\"c8-win\">$600\u2013900 \u25b2<\/span><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Cost\/m\u00b2 on carbon steel<\/td>\r\n<td><span class=\"c8-lose\">Very high (overkill) \u25bc<\/span><\/td>\r\n<td><span class=\"c8-win\">Low \u25b2<\/span><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Effectiveness on glass<\/td>\r\n<td><span class=\"c8-win\">Excellent \u25b2<\/span><\/td>\r\n<td><span class=\"c8-tie\">Slow \u2014 not ideal \u25b3<\/span><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Effectiveness on ceramics<\/td>\r\n<td><span class=\"c8-win\">Excellent \u25b2<\/span><\/td>\r\n<td><span class=\"c8-tie\">Moderate \u25b3<\/span><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Effectiveness on carbon steel<\/td>\r\n<td><span class=\"c8-tie\">Works, costly \u25b3<\/span><\/td>\r\n<td><span class=\"c8-win\">Ideal \u25b2<\/span><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Silica-free compliance<\/td>\r\n<td><span class=\"c8-win\">Yes \u25b2<\/span><\/td>\r\n<td><span class=\"c8-win\">Yes \u25b2<\/span><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Availability of grades<\/td>\r\n<td><span class=\"c8-win\">F12\u2013F1200+ \u25b2<\/span><\/td>\r\n<td>F12\u2013F220<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n<p style=\"font-size: 0.82rem; color: #7a8a9a; margin-top: -16px;\">\u25b2 Advantage \u00a0\u00b7\u00a0 \u25b3 Acceptable \u00a0\u00b7\u00a0 \u25bc Disadvantage \u00a0\u00b7\u00a0 Prices indicative as of March 2026 FOB China.<\/p>\r\n<p>The decision rule is clear: <strong>use aluminum oxide for carbon steel, stainless steel, and most industrial metal surface preparation<\/strong> \u2014 it is adequate in hardness, far more economical, and dramatically more recyclable. <strong>Use silicon carbide when the substrate is glass, technical ceramic, cemented carbide, or any material hard enough that aluminum oxide produces an unacceptably slow blasting rate<\/strong> \u2014 or when the very finest micro-grit sizes for semiconductor and optical work are required.<\/p>\r\n<p>For the complete multi-abrasive comparison across all media types, see the <a href=\"https:\/\/hlh-js.com\/resource\/blog\/blasting-media-comparison-blasting-media-chart\/\" target=\"_blank\" rel=\"noopener\">Blasting Media Comparison Chart<\/a>. For a structured selection framework, see the <a href=\"https:\/\/hlh-js.com\/resource\/blog\/how-to-choose-the-right-blasting-media\/\" target=\"_blank\" rel=\"noopener\">complete blasting media selection guide<\/a>.<\/p>\r\n<!-- SECTION 7 -->\r\n<h2 id=\"c8-cost\">7. Cost Economics<\/h2>\r\n<p>Silicon carbide is among the most expensive commercial blasting abrasives on a per-kilogram basis, reflecting the energy-intensive Acheson process required to produce it and its relatively limited global production volume compared to aluminum oxide.<\/p>\r\n<div class=\"c8-cost-box\">\r\n<div class=\"c8-cost-stat\"><span class=\"c8-cost-num\">$1,400\u20132,200<\/span> <span class=\"c8-cost-label\">Indicative price range per MT (black SiC, blasting grade, FOB China, March 2026)<\/span><\/div>\r\n<div class=\"c8-cost-stat\"><span class=\"c8-cost-num\">10\u201330\u00d7<\/span> <span class=\"c8-cost-label\">Recycle cycles in cabinet blast systems before particle size falls below usable threshold<\/span><\/div>\r\n<div class=\"c8-cost-stat\"><span class=\"c8-cost-num\">2\u20133\u00d7<\/span> <span class=\"c8-cost-label\">Price premium of green SiC over black SiC at equivalent grit grade<\/span><\/div>\r\n<\/div>\r\n<p>Despite higher unit cost, silicon carbide can be economical in applications where no alternative abrasive achieves the required cutting rate. If aluminum oxide completes a glass etching job in 8 hours and silicon carbide completes the same job in 3 hours, the reduction in labor time and equipment amortization may offset the higher media cost \u2014 particularly in high-labor-cost markets. The cost-per-job calculation must include: media purchase cost, recycle life in the specific application, labor time saved, and equipment productivity improvement.<\/p>\r\n<p>For cabinet blast systems processing glass or ceramic components at volume, silicon carbide&#8217;s relatively lower recycle life (10\u201330 cycles vs 100\u2013200 for aluminum oxide) is partially offset by its faster cutting rate \u2014 each cycle processes more surface area per unit time. Benchmarking actual media consumption per m\u00b2 of substrate processed, rather than relying on nominal recycle cycle counts, gives the most accurate cost comparison for a specific production application. See the <a href=\"https:\/\/hlh-js.com\/resource\/blog\/blasting-media-cost-guide-price-per-pound-roi\/\" target=\"_blank\" rel=\"noopener\">Blasting Media Cost Guide &amp; ROI Analysis<\/a> for a full cost-per-m\u00b2 modeling framework.<\/p>\r\n<!-- SECTION 8 -->\r\n<h2 id=\"c8-sourcing\">8. Sourcing and Quality Standards<\/h2>\r\n<p>Silicon carbide for blasting is produced primarily in China, which accounts for the large majority of global output, with additional production in the United States, Norway, South Africa, and Brazil. Quality between suppliers can vary significantly, particularly in particle size distribution consistency, purity, and the proportion of defective (non-angular, over-fused) particles in the grit. The following standards and documentation should be requested from any supplier before qualifying a source:<\/p>\r\n<ul>\r\n<li><strong>FEPA Standard 42-1984<\/strong> (or ISO 8486) \u2014 particle size distribution for F-grade abrasive grits, the primary sizing reference for blasting-grade SiC in international trade<\/li>\r\n<li><strong>GB\/T 2480<\/strong> \u2014 Chinese national standard for silicon carbide abrasives (relevant when sourcing from Chinese producers)<\/li>\r\n<li><strong>Chemical analysis certificate<\/strong> \u2014 confirming SiC content (98% min for black, 99%+ for green), free carbon content, free silicon content, and Fe\u2082O\u2083 content per batch<\/li>\r\n<li><strong>Sieve analysis certificate<\/strong> \u2014 confirming actual particle size distribution against FEPA grade specification for the specific shipment lot<\/li>\r\n<li><strong>SDS\/MSDS<\/strong> \u2014 Safety Data Sheet confirming free crystalline silica content and relevant occupational health classifications<\/li>\r\n<\/ul>\r\n<div class=\"c8-info\">Jiangsu Henglihong Technology supplies black and green silicon carbide in FEPA F-grade macro grits (F12\u2013F220) and micro grits, with full batch chemical analysis certificates, sieve analysis documentation, and SDS on request. Standard packaging is 25 kg paper bags or 1,000 kg big bags for sea freight export to North America, Europe, the Middle East, and Asia.<\/div>\r\n<!-- SECTION 9 \u2014 FAQ -->\r\n<h2 id=\"c8-faq\">9. Frequently Asked Questions<\/h2>\r\n<div class=\"c8-faq\">\r\n<div class=\"c8-faq-item\"><button class=\"c8-faq-q\" aria-expanded=\"false\"> What is silicon carbide blast media used for? <i class=\"c8-faq-icon\">+<\/i> <\/button>\r\n<div class=\"c8-faq-a\">\r\n<div>Silicon carbide blast media is used for surface preparation and etching of extremely hard substrates that would wear out aluminum oxide too quickly \u2014 primarily glass etching and artistic glass carving, stone monument and architectural surface texturing, surface preparation of technical ceramics (alumina, zirconia, silicon nitride) and cemented carbide components prior to coating, silicon wafer and semiconductor substrate processing, and optical component matting. Its Mohs 9.5 hardness and self-sharpening friable fracture pattern make it the fastest-cutting commercially available blasting abrasive. It is not economical for standard carbon steel or stainless steel surface preparation, where aluminum oxide is the preferred and more cost-effective specification.<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"c8-faq-item\"><button class=\"c8-faq-q\" aria-expanded=\"false\"> What is the hardness of silicon carbide? <i class=\"c8-faq-icon\">+<\/i> <\/button>\r\n<div class=\"c8-faq-a\">\r\n<div>Silicon carbide has a Mohs hardness of 9.5, making it the hardest commercially available blasting abrasive. This compares to aluminum oxide at Mohs 9.0, steel grit at approximately Mohs 8.0, garnet at 7.5\u20138.0, and glass bead at 5.5\u20136.0. On the Vickers hardness scale, black SiC measures approximately 2,400 HV and green SiC approximately 2,600\u20132,800 HV, compared to approximately 1,800\u20132,000 HV for aluminum oxide. Only diamond (Mohs 10) and boron carbide are harder among commercially significant abrasive materials.<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"c8-faq-item\"><button class=\"c8-faq-q\" aria-expanded=\"false\"> What is the difference between black and green silicon carbide? <i class=\"c8-faq-icon\">+<\/i> <\/button>\r\n<div class=\"c8-faq-a\">\r\n<div>Black silicon carbide contains approximately 98% SiC purity and is the standard industrial grade for blasting, lapping, and grinding applications including glass etching, stone texturing, and ceramic surface preparation. It is cost-effective and performs well in all standard SiC blasting applications. Green silicon carbide is purer (99%+), harder (up to Mohs 9.5 vs ~9.1\u20139.3 for black), and more friable \u2014 meaning it fractures more readily into new sharp cutting edges. Green SiC is specified for semiconductor wafer processing, optical component preparation, and the finest precision lapping operations where maximum purity and cutting speed are documented requirements. It commands a 20\u201340% price premium over black SiC and is not necessary for most blasting applications.<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"c8-faq-item\"><button class=\"c8-faq-q\" aria-expanded=\"false\"> Is silicon carbide better than aluminum oxide for blasting? <i class=\"c8-faq-icon\">+<\/i> <\/button>\r\n<div class=\"c8-faq-a\">\r\n<div>Silicon carbide is harder and cuts faster than aluminum oxide, but it is not universally better \u2014 it is more specialized and more expensive. For general industrial surface preparation of carbon steel, stainless steel, and most metals, aluminum oxide is strongly preferred due to its dramatically better recyclability (100\u2013200 cycles vs 10\u201330 for SiC) and lower unit cost ($600\u2013900\/MT vs $1,400\u20132,200\/MT). Silicon carbide is the correct choice only when the substrate hardness makes aluminum oxide too slow \u2014 glass, technical ceramics, cemented carbide, silicon \u2014 or when absolute fastest cutting speed on a very hard material justifies the significant cost premium. For a structured decision between the two, see our <a href=\"https:\/\/hlh-js.com\/resource\/blog\/how-to-choose-the-right-blasting-media\/\" target=\"_blank\" rel=\"noopener\">complete blasting media selection guide<\/a>.<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"c8-faq-item\"><button class=\"c8-faq-q\" aria-expanded=\"false\"> Is silicon carbide blast media safe to use? <i class=\"c8-faq-icon\">+<\/i> <\/button>\r\n<div class=\"c8-faq-a\">\r\n<div>Silicon carbide blast media is chemically inert, contains no free crystalline silica, and is non-toxic \u2014 making it compliant with OSHA 29 CFR 1926.1153, EU Directive 2017\/2398, and equivalent silica exposure regulations worldwide. It carries none of the silicosis risk associated with legacy silica sand blasting. Standard blasting PPE is still mandatory: supplied-air respirator or P100 half-mask, blast suit or coverall, hearing protection, and appropriate gloves. SiC dust inhalation should be minimized with proper ventilation and dust collection, as with any fine particulate in an industrial environment. For full PPE requirements and regulatory guidance, see the <a href=\"https:\/\/hlh-js.com\/resource\/blog\/blasting-media-safety-guide-silica-risks-ppe\/\" target=\"_blank\" rel=\"noopener\">Blasting Media Safety Guide<\/a>.<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<!-- RELATED RESOURCES -->\r\n<h2 style=\"margin-top: 44px;\">Related Resources<\/h2>\r\n<p>Explore the full blasting media resource library from Jiangsu Henglihong Technology for further guidance on media selection, cost analysis, and application-specific recommendations:<\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/hlh-js.com\/resource\/blog\/blasting-media\/\" target=\"_blank\" rel=\"noopener\">Blasting Media: Complete Industry Guide<\/a> \u2014 full overview of all media types and applications<\/li>\r\n<li><a href=\"https:\/\/hlh-js.com\/resource\/blog\/types-of-blasting-media-complete-guide\/\" target=\"_blank\" rel=\"noopener\">Types of Blasting Media: Complete Guide<\/a> \u2014 how silicon carbide compares to all other abrasive types<\/li>\r\n<li><a href=\"https:\/\/hlh-js.com\/resource\/blog\/how-to-choose-the-right-blasting-media\/\" target=\"_blank\" rel=\"noopener\">How to Choose the Right Blasting Media<\/a> \u2014 step-by-step selection framework and substrate matrix<\/li>\r\n<li><a href=\"https:\/\/hlh-js.com\/resource\/blog\/aluminum-oxide-blast-media-uses-grit-guide\/\" target=\"_blank\" rel=\"noopener\">Aluminum Oxide Blast Media: Uses &amp; Grit Guide<\/a> \u2014 the preferred alternative for most industrial metal applications<\/li>\r\n<li><a href=\"https:\/\/hlh-js.com\/resource\/blog\/garnet-blasting-media-eco-friendly-high-performance\/\" target=\"_blank\" rel=\"noopener\">Garnet Blasting Media<\/a> \u2014 low-dust mineral abrasive for open-air steel blasting<\/li>\r\n<li><a href=\"https:\/\/hlh-js.com\/resource\/blog\/glass-bead-blasting-media-finish-applications\/\" target=\"_blank\" rel=\"noopener\">Glass Bead Blasting Media<\/a> \u2014 for smooth satin finishes on stainless and aluminum<\/li>\r\n<li><a href=\"https:\/\/hlh-js.com\/resource\/blog\/steel-grit-vs-steel-shot-which-should-you-use\/\" target=\"_blank\" rel=\"noopener\">Steel Grit vs Steel Shot<\/a> \u2014 metallic abrasives for high-volume automated blast rooms<\/li>\r\n<li><a href=\"https:\/\/hlh-js.com\/resource\/blog\/plastic-blast-media-for-aerospace-automotive\/\" target=\"_blank\" rel=\"noopener\">Plastic Blast Media for Aerospace &amp; Automotive<\/a><\/li>\r\n<li><a href=\"https:\/\/hlh-js.com\/resource\/blog\/blasting-media-comparison-blasting-media-chart\/\" target=\"_blank\" rel=\"noopener\">Blasting Media Comparison Chart<\/a> \u2014 side-by-side data for all major abrasives<\/li>\r\n<li><a href=\"https:\/\/hlh-js.com\/resource\/blog\/blasting-media-cost-guide-price-per-pound-roi\/\" target=\"_blank\" rel=\"noopener\">Blasting Media Cost Guide &amp; ROI Analysis<\/a> \u2014 cost-per-m\u00b2 modeling and price benchmarks<\/li>\r\n<li><a href=\"https:\/\/hlh-js.com\/resource\/blog\/blasting-media-safety-guide-silica-risks-ppe\/\" target=\"_blank\" rel=\"noopener\">Blasting Media Safety Guide<\/a> \u2014 OSHA\/EU compliance, PPE requirements<\/li>\r\n<li><a href=\"https:\/\/hlh-js.com\/resource\/blog\/eco-friendly-blasting-media-low-dust-silica-free-options\/\" target=\"_blank\" rel=\"noopener\">Eco-Friendly Blasting Media: Low-Dust &amp; Silica-Free Options<\/a><\/li>\r\n<li><a href=\"https:\/\/hlh-js.com\/resource\/blog\/industrial-surface-prep-best-blasting-media-for-metal\/\" target=\"_blank\" rel=\"noopener\">Industrial Surface Prep: Best Blasting Media for Metal<\/a><\/li>\r\n<li><a href=\"https:\/\/hlh-js.com\/resource\/blog\/blasting-media-for-automotive-restoration\/\" target=\"_blank\" rel=\"noopener\">Blasting Media for Automotive Restoration<\/a><\/li>\r\n<\/ul>\r\n<!-- CTA -->\r\n<div class=\"c8-cta\">\r\n<h2>Source Silicon Carbide Blast Media from a Trusted Manufacturer<\/h2>\r\n<p>Jiangsu Henglihong Technology supplies black and green silicon carbide in FEPA F-grade macro and micro grits, with full chemical analysis certification, sieve analysis documentation, and reliable export logistics to North America, Europe, the Middle East, and beyond.<\/p>\r\n<a class=\"c8-cta-btn\" href=\"https:\/\/hlh-js.com\/contact\/\" target=\"_blank\" rel=\"noopener\">Request a Quote or Technical Sample<\/a><\/div>\r\n<\/article>\r\n<!-- ===== FAQ ACCORDION SCRIPT ===== -->\r\n<p><script>\r\n(function() {\r\n  function c8ToggleFaq(btn) {\r\n    var item = btn.parentElement;\r\n    var isOpen = item.classList.contains('open');\r\n    document.querySelectorAll('.c8-faq-item').forEach(function(el) {\r\n      el.classList.remove('open');\r\n      var b = el.querySelector('.c8-faq-q');\r\n      if (b) b.setAttribute('aria-expanded', 'false');\r\n    });\r\n    if (!isOpen) {\r\n      item.classList.add('open');\r\n      btn.setAttribute('aria-expanded', 'true');\r\n    }\r\n  }\r\n  window.c8ToggleFaq = c8ToggleFaq;\r\n})();\r\n<\/script><\/p>\r\n<!-- ===== ON-PAGE SEO NOTES (remove before publishing) =====\r\nMETA TITLE (\u226460 chars):\r\n  Silicon Carbide Blast Media: Hardest Abrasive Guide 2026\r\n\r\nMETA DESCRIPTION (\u2264155 chars):\r\n  Complete guide to silicon carbide blast media \u2014 Mohs 9.5 hardness, black vs green SiC, grit sizes, glass etching, ceramic prep, cost vs aluminum oxide.\r\n\r\nPRIMARY KEYWORD: silicon carbide blast media\r\nSECONDARY: silicon carbide blasting, SiC blast media, silicon carbide abrasive blasting, black silicon carbide blasting, green silicon carbide abrasive\r\n\r\nFEATURED SNIPPET OPPORTUNITIES:\r\n  - \"What is silicon carbide blast media used for?\" \u2192 FAQ item 1 targets PAA\r\n  - \"What is the hardness of silicon carbide?\" \u2192 FAQ item 2 + hardness chart targets Featured Snippet\r\n  - \"Black vs green silicon carbide\" \u2192 Section 3 comparison cards targets Featured Snippet\r\n  - SiC vs Al\u2082O\u2083 table \u2192 targets table snippet\r\n\r\nINTERNAL LINKS:\r\n  \u2192 Pillar (blasting-media\/) \u00d72\r\n  \u2192 types-of-blasting-media \u00d71\r\n  \u2192 how-to-choose \u00d73\r\n  \u2192 aluminum-oxide \u00d74\r\n  \u2192 glass-bead \u00d71\r\n  \u2192 garnet \u00d71\r\n  \u2192 steel-grit-vs-shot \u00d71\r\n  \u2192 plastic-media \u00d71\r\n  \u2192 automotive \u00d71\r\n  \u2192 industrial-metal \u00d71\r\n  \u2192 eco-friendly \u00d71\r\n  \u2192 cost-guide \u00d72\r\n  \u2192 comparison-chart \u00d72\r\n  \u2192 safety \u00d72\r\n\r\nJS namespace: c8ToggleFaq \u2014 fully isolated.\r\nAll dates: March 2026.\r\nNo \"Cluster N\" references in visible content.\r\n===== END SEO NOTES ===== -->","protected":false},"excerpt":{"rendered":"<p>In-Depth Product Guide \u00b7 March 2026 Silicon Carbide Blast Media:  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