{"id":13387,"date":"2026-06-15T05:03:43","date_gmt":"2026-06-15T05:03:43","guid":{"rendered":"https:\/\/hlh-js.com\/?p=13387"},"modified":"2026-06-15T05:03:43","modified_gmt":"2026-06-15T05:03:43","slug":"silicon-carbide-grit-size-chart-how-to-choose-the-right-mesh-for-blasting","status":"publish","type":"post","link":"https:\/\/hlh-js.com\/fr\/resource\/blog\/silicon-carbide-grit-size-chart-how-to-choose-the-right-mesh-for-blasting\/","title":{"rendered":"Silicon Carbide Grit Size Chart:\u00a0How to Choose the Right Mesh for Blasting"},"content":{"rendered":"<style>\n\/* \u2500\u2500 HLH Cluster Shared CSS \u2500\u2500 *\/\n.hlh-cluster *,.hlh-cluster *::before,.hlh-cluster *::after{box-sizing:border-box;margin:0;padding:0}\n.hlh-cluster{\n  --c-bg:#0d1117;--c-surface:#161b22;--c-panel:#1c2330;--c-border:#2a3444;\n  --c-accent:#e8700a;--c-accent2:#f0920d;--c-steel:#8fa3bc;--c-text:#d4dbe5;\n  --c-heading:#eef2f7;--c-muted:#5a6a7e;--c-tag-bg:#1f2d3d;--c-tag-text:#7eb8e8;\n  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Checklist *\/\n.hlh-checklist{list-style:none;margin:14px 0}\n.hlh-checklist li{display:flex;gap:10px;align-items:flex-start;padding:8px 0;border-bottom:1px solid var(--c-border);font-size:14.5px;color:var(--c-steel);line-height:1.55}\n.hlh-checklist li:last-child{border-bottom:none}\n.hlh-checklist li::before{content:'\u2713';color:#4caf74;flex-shrink:0;font-weight:700;margin-top:1px}\n.hlh-warn-list{list-style:none;margin:14px 0}\n.hlh-warn-list li{display:flex;gap:10px;align-items:flex-start;padding:8px 0;border-bottom:1px solid var(--c-border);font-size:14.5px;color:var(--c-steel);line-height:1.55}\n.hlh-warn-list li:last-child{border-bottom:none}\n.hlh-warn-list li::before{content:'\u2717';color:#f07080;flex-shrink:0;font-weight:700;margin-top:1px}\n\/* Responsive *\/\n@media(max-width:900px){.hlh-layout{grid-template-columns:1fr;padding:0 4%}.hlh-toc-wrap{position:static;padding:20px 0 0}.hlh-article{padding:20px 0}.hlh-vs-wrap{grid-template-columns:1fr}.hlh-vs-divider{display:none}}\n@media(max-width:600px){.hlh-hero{padding:44px 5% 36px}.hlh-related-grid{grid-template-columns:1fr}.hlh-cta-section{padding:32px 20px}}\n\n<\/style>\n\n<div class=\"hlh-cluster\">\n\n<div class=\"hlh-hero\">\n  <div class=\"hlh-hero-eyebrow\">Selection Guide \u00b7 Jiangsu Henglihong Technology Co., Ltd.<\/div>\n  <h1>Silicon Carbide Grit Size Chart: <em>How to Choose the Right Mesh for Blasting<\/em><\/h1>\n  <p class=\"hlh-hero-sub\">Complete grit size reference for silicon carbide blast media \u2014 FEPA, ANSI, and JIS cross-reference tables, Ra\/Rz surface profile correlations, and application-specific grit selection guidance for industrial buyers.<\/p>\n  <div class=\"hlh-hero-meta\">\n    <div class=\"hlh-meta-item\">\ud83d\udcc5 <span>Updated June 2026<\/span><\/div>\n    <div class=\"hlh-meta-dot\"><\/div>\n    <div class=\"hlh-meta-item\">\u23f1\ufe0f <span>~11 min read<\/span><\/div>\n    <div class=\"hlh-meta-dot\"><\/div>\n    <div class=\"hlh-meta-item\">\ud83c\udfed <span>Henglihong Technical Team<\/span><\/div>\n  <\/div>\n<\/div>\n\n<div class=\"hlh-layout\">\n<aside class=\"hlh-toc-wrap\">\n  <nav class=\"hlh-toc\" aria-label=\"Table of Contents\">\n    <div class=\"hlh-toc-title\">Contents<\/div>\n    <ol>\n      <li><a href=\"#grit-basics\">Grit Size Basics<\/a><\/li>\n      <li><a href=\"#standards\">FEPA \/ ANSI \/ JIS Standards<\/a><\/li>\n      <li><a href=\"#master-chart\">Master Grit Reference Chart<\/a><\/li>\n      <li><a href=\"#surface-profile\">Grit vs. Surface Profile (Ra\/Rz)<\/a><\/li>\n      <li><a href=\"#application-guide\">Application-Specific Selection<\/a><\/li>\n      <li><a href=\"#coarse\">Coarse Grits (#10\u201336)<\/a><\/li>\n      <li><a href=\"#medium\">Medium Grits (#46\u2013120)<\/a><\/li>\n      <li><a href=\"#fine\">Fine Grits (#150\u2013400)<\/a><\/li>\n      <li><a href=\"#ultrafine\">Ultra-Fine Grits (#500\u20131200)<\/a><\/li>\n      <li><a href=\"#mistakes\">Common Selection Mistakes<\/a><\/li>\n      <li><a href=\"#faq\">FAQ<\/a><\/li>\n      <li><a href=\"#related\">Related Guides<\/a><\/li>\n    <\/ol>\n    <a class=\"hlh-toc-cta\" href=\"https:\/\/hlh-js.com\/contact\/\" target=\"_blank\" rel=\"noopener\">Request Specific Grit \u2192<\/a>\n  <\/nav>\n<\/aside>\n\n<article class=\"hlh-article\">\n\n<div class=\"hlh-section\">\n  <span class=\"hlh-section-anchor\" id=\"grit-basics\"><\/span>\n  <h2><span class=\"hlh-h2-num\">SECTION 01<\/span>Understanding Grit Size<\/h2>\n  <p>Grit size describes the physical diameter of individual abrasive particles, expressed as a mesh number \u2014 the number of openings per linear inch in a standardized sieve screen. Counterintuitively, <strong>higher mesh numbers = smaller particles<\/strong>: a #24 grit particle is approximately 800 \u00b5m in diameter, while a #600 grit particle is approximately 20 \u00b5m. The relationship is inverse because the mesh number refers to the screen that retains the particles, and finer screens require more openings per inch.<\/p>\n  <p>For silicon carbide abrasive blasting media, grit size is the most operationally important specification \u2014 it directly determines the surface profile depth, cutting speed, dust generation level, and media consumption rate of any blasting operation. Specifying the wrong grit size is one of the most common and costly mistakes in abrasive procurement. This guide eliminates that risk with a complete reference system and application-specific selection guidance.<\/p>\n  <p>For a broader overview of SiC blast media properties beyond grit selection, see: <a href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-abrasive-blasting-media-complete-buyers-guide\/\" target=\"_blank\" rel=\"noopener\">Complete Buyer&#8217;s Guide to SiC Abrasive Blasting Media<\/a>.<\/p>\n<\/div>\n\n<hr class=\"hlh-divider\">\n\n<div class=\"hlh-section\">\n  <span class=\"hlh-section-anchor\" id=\"standards\"><\/span>\n  <h2><span class=\"hlh-h2-num\">SECTION 02<\/span>Grit Standards: FEPA, ANSI, and JIS<\/h2>\n  <p>Three major international standards govern abrasive grit classification, each with distinct mesh numbering systems for the same physical particle size ranges. When ordering silicon carbide blasting media internationally, specifying the correct standard is critical \u2014 ordering &#8220;#60 grit&#8221; without a standard qualifier can result in receiving product with a different particle size than intended, as the FEPA, ANSI, and JIS #60 designations correspond to slightly different size distributions.<\/p>\n  <div class=\"hlh-table-wrap\">\n    <table class=\"hlh-table\">\n      <thead><tr><th>Standard<\/th><th>Full Name<\/th><th>Primary Regions<\/th><th>Designation Format<\/th><th>Notes<\/th><\/tr><\/thead>\n      <tbody>\n        <tr><td><strong>FEPA<\/strong><\/td><td>Federation of European Producers of Abrasives<\/td><td>Europe, China (export), Asia<\/td><td>F-grit (macro) \/ P-grit (coated)<\/td><td>Dominant global export standard<\/td><\/tr>\n        <tr><td><strong>ANSI<\/strong><\/td><td>American National Standards Institute (B74.12)<\/td><td>USA, Canada<\/td><td>Grit number (no prefix)<\/td><td>Close to FEPA for macro grits<\/td><\/tr>\n        <tr><td><strong>JIS<\/strong><\/td><td>Japanese Industrial Standards (R6001)<\/td><td>Japan, South Korea<\/td><td>Grit number<\/td><td>Different D50 targets at fine sizes<\/td><\/tr>\n      <\/tbody>\n    <\/table>\n  <\/div>\n  <div class=\"hlh-note\">\n    <span class=\"hlh-note-icon\">\ud83d\udca1<\/span>\n    <p><strong>Procurement tip:<\/strong> When ordering from Jiangsu Henglihong Technology Co., Ltd., specify your target standard (FEPA, ANSI, or JIS) at time of order. We supply to all three and provide sieve analysis certificates confirming D10, D50, and D90 values for each production lot. For North American buyers, specify ANSI; for European\/global buyers, specify FEPA; for Japanese buyers, specify JIS.<\/p>\n  <\/div>\n<\/div>\n\n<hr class=\"hlh-divider\">\n\n<div class=\"hlh-section\">\n  <span class=\"hlh-section-anchor\" id=\"master-chart\"><\/span>\n  <h2><span class=\"hlh-h2-num\">SECTION 03<\/span>Master Grit Reference Chart<\/h2>\n  <p>The following table provides a complete cross-reference of grit numbers, particle sizes, and equivalent designations across FEPA, ANSI, and JIS standards for silicon carbide blasting and lapping media.<\/p>\n  <div class=\"hlh-table-wrap\">\n    <table class=\"hlh-table\">\n      <thead><tr><th>FEPA Grit<\/th><th>ANSI Grit<\/th><th>JIS Grit<\/th><th>D50 Particle Size (\u00b5m)<\/th><th>Size Range (\u00b5m)<\/th><th>Cat\u00e9gorie<\/th><\/tr><\/thead>\n      <tbody>\n        <tr><td><strong>F10<\/strong><\/td><td>#10<\/td><td>#10<\/td><td>~2,000<\/td><td>2360\u20131700<\/td><td><span class=\"hlh-badge hlh-badge-orange\">Very Coarse<\/span><\/td><\/tr>\n        <tr><td><strong>F12<\/strong><\/td><td>#12<\/td><td>#12<\/td><td>~1,700<\/td><td>2000\u20131400<\/td><td><span class=\"hlh-badge hlh-badge-orange\">Very Coarse<\/span><\/td><\/tr>\n        <tr><td><strong>F14<\/strong><\/td><td>#14<\/td><td>#14<\/td><td>~1,400<\/td><td>1700\u20131180<\/td><td><span class=\"hlh-badge hlh-badge-orange\">Very Coarse<\/span><\/td><\/tr>\n        <tr><td><strong>F16<\/strong><\/td><td>#16<\/td><td>#16<\/td><td>~1,180<\/td><td>1400\u20131000<\/td><td><span class=\"hlh-badge hlh-badge-orange\">Coarse<\/span><\/td><\/tr>\n        <tr><td><strong>F20<\/strong><\/td><td>#20<\/td><td>#20<\/td><td>~900<\/td><td>1180\u2013710<\/td><td><span class=\"hlh-badge hlh-badge-orange\">Coarse<\/span><\/td><\/tr>\n        <tr><td><strong>F24<\/strong><\/td><td>#24<\/td><td>#24<\/td><td>~750<\/td><td>1000\u2013600<\/td><td><span class=\"hlh-badge hlh-badge-orange\">Coarse<\/span><\/td><\/tr>\n        <tr><td><strong>F30<\/strong><\/td><td>#30<\/td><td>#30<\/td><td>~600<\/td><td>710\u2013500<\/td><td><span class=\"hlh-badge hlh-badge-orange\">Coarse<\/span><\/td><\/tr>\n        <tr><td><strong>F36<\/strong><\/td><td>#36<\/td><td>#36<\/td><td>~500<\/td><td>600\u2013425<\/td><td><span class=\"hlh-badge hlh-badge-orange\">Coarse<\/span><\/td><\/tr>\n        <tr><td><strong>F46<\/strong><\/td><td>#46<\/td><td>#46<\/td><td>~380<\/td><td>425\u2013300<\/td><td><span class=\"hlh-badge hlh-badge-blue\">Medium-Coarse<\/span><\/td><\/tr>\n        <tr><td><strong>F54<\/strong><\/td><td>#54<\/td><td>#54<\/td><td>~310<\/td><td>355\u2013250<\/td><td><span class=\"hlh-badge hlh-badge-blue\">Medium-Coarse<\/span><\/td><\/tr>\n        <tr><td><strong>F60<\/strong><\/td><td>#60<\/td><td>#60<\/td><td>~260<\/td><td>300\u2013212<\/td><td><span class=\"hlh-badge hlh-badge-blue\">Medium<\/span><\/td><\/tr>\n        <tr><td><strong>F70<\/strong><\/td><td>#70<\/td><td>#70<\/td><td>~218<\/td><td>250\u2013180<\/td><td><span class=\"hlh-badge hlh-badge-blue\">Medium<\/span><\/td><\/tr>\n        <tr><td><strong>F80<\/strong><\/td><td>#80<\/td><td>#80<\/td><td>~185<\/td><td>212\u2013150<\/td><td><span class=\"hlh-badge hlh-badge-blue\">Medium<\/span><\/td><\/tr>\n        <tr><td><strong>F90<\/strong><\/td><td>#90<\/td><td>#90<\/td><td>~154<\/td><td>180\u2013125<\/td><td><span class=\"hlh-badge hlh-badge-blue\">Medium<\/span><\/td><\/tr>\n        <tr><td><strong>F100<\/strong><\/td><td>#100<\/td><td>#100<\/td><td>~129<\/td><td>150\u2013106<\/td><td><span class=\"hlh-badge hlh-badge-blue\">Medium<\/span><\/td><\/tr>\n        <tr><td><strong>F120<\/strong><\/td><td>#120<\/td><td>#120<\/td><td>~109<\/td><td>125\u201390<\/td><td><span class=\"hlh-badge hlh-badge-blue\">Medium<\/span><\/td><\/tr>\n        <tr><td><strong>F150<\/strong><\/td><td>#150<\/td><td>#150<\/td><td>~92<\/td><td>106\u201375<\/td><td><span class=\"hlh-badge hlh-badge-green\">Medium-Fine<\/span><\/td><\/tr>\n        <tr><td><strong>F180<\/strong><\/td><td>#180<\/td><td>#180<\/td><td>~78<\/td><td>90\u201363<\/td><td><span class=\"hlh-badge hlh-badge-green\">Medium-Fine<\/span><\/td><\/tr>\n        <tr><td><strong>F220<\/strong><\/td><td>#220<\/td><td>#220<\/td><td>~66<\/td><td>75\u201353<\/td><td><span class=\"hlh-badge hlh-badge-green\">Fine<\/span><\/td><\/tr>\n        <tr><td><strong>F240<\/strong><\/td><td>#240<\/td><td>#240<\/td><td>~58<\/td><td>63\u201345<\/td><td><span class=\"hlh-badge hlh-badge-green\">Fine<\/span><\/td><\/tr>\n        <tr><td><strong>F280<\/strong><\/td><td>#280<\/td><td>#280<\/td><td>~52<\/td><td>53\u201340<\/td><td><span class=\"hlh-badge hlh-badge-green\">Fine<\/span><\/td><\/tr>\n        <tr><td><strong>F320<\/strong><\/td><td>#320<\/td><td>#360<\/td><td>~46<\/td><td>53\u201336<\/td><td><span class=\"hlh-badge hlh-badge-green\">Fine<\/span><\/td><\/tr>\n        <tr><td><strong>F400<\/strong><\/td><td>#400<\/td><td>#400<\/td><td>~23<\/td><td>28\u201317<\/td><td><span class=\"hlh-badge hlh-badge-green\">Very Fine<\/span><\/td><\/tr>\n        <tr><td><strong>F500<\/strong><\/td><td>#500<\/td><td>#600<\/td><td>~16<\/td><td>20\u201311<\/td><td><span class=\"hlh-badge hlh-badge-gray\">Ultra Fine<\/span><\/td><\/tr>\n        <tr><td><strong>F600<\/strong><\/td><td>#600<\/td><td>#800<\/td><td>~9<\/td><td>14\u20137<\/td><td><span class=\"hlh-badge hlh-badge-gray\">Ultra Fine<\/span><\/td><\/tr>\n        <tr><td><strong>F800<\/strong><\/td><td>#800<\/td><td>#1000<\/td><td>~6.5<\/td><td>10\u20135<\/td><td><span class=\"hlh-badge hlh-badge-gray\">Ultra Fine<\/span><\/td><\/tr>\n        <tr><td><strong>F1000<\/strong><\/td><td>#1000<\/td><td>#1200<\/td><td>~4.5<\/td><td>7\u20133<\/td><td><span class=\"hlh-badge hlh-badge-gray\">Ultra Fine<\/span><\/td><\/tr>\n        <tr><td><strong>F1200<\/strong><\/td><td>#1200<\/td><td>#2000<\/td><td>~3.0<\/td><td>5\u20132<\/td><td><span class=\"hlh-badge hlh-badge-gray\">Ultra Fine<\/span><\/td><\/tr>\n      <\/tbody>\n    <\/table>\n  <\/div>\n<\/div>\n\n<hr class=\"hlh-divider\">\n\n<div class=\"hlh-section\">\n  <span class=\"hlh-section-anchor\" id=\"surface-profile\"><\/span>\n  <h2><span class=\"hlh-h2-num\">SECTION 04<\/span>Grit Size vs. Surface Profile (Ra and Rz)<\/h2>\n  <p>Surface roughness is typically measured in Ra (arithmetic mean roughness) or Rz (mean peak-to-valley height). Coating manufacturers specify minimum and maximum Ra or Rz values for their coating systems \u2014 the abrasive grit must be selected to achieve a surface profile within this specification window. The following table shows typical Ra values produced by SiC on carbon steel under standard direct-pressure blasting conditions (70 PSI, venturi nozzle, 200 mm standoff).<\/p>\n  <div class=\"hlh-table-wrap\">\n    <table class=\"hlh-table\">\n      <thead><tr><th>SiC Grit (FEPA)<\/th><th>D50 (\u00b5m)<\/th><th>Typical Ra on Steel (\u00b5m)<\/th><th>Rz Estimate (\u00b5m)<\/th><th>ISO 8501 Cleanness<\/th><th>Best Coating Type<\/th><\/tr><\/thead>\n      <tbody>\n        <tr><td><strong>F16\u2013F24<\/strong><\/td><td>750\u20131180<\/td><td>12\u201320<\/td><td>60\u2013110<\/td><td>Sa 3<\/td><td>High-build epoxy, TSA thermal spray<\/td><\/tr>\n        <tr><td><strong>F36\u2013F46<\/strong><\/td><td>380\u2013500<\/td><td>8-13<\/td><td>42\u201370<\/td><td>Sa 2.5\u2013Sa 3<\/td><td>Zinc-rich primer, heavy epoxy<\/td><\/tr>\n        <tr><td><strong>F60\u2013F80<\/strong><\/td><td>185\u2013260<\/td><td>5\u20139<\/td><td>28\u201350<\/td><td>Sa 2.5<\/td><td>Epoxy, polyurethane, coal tar<\/td><\/tr>\n        <tr><td><strong>F100\u2013F120<\/strong><\/td><td>109\u2013129<\/td><td>3\u20135<\/td><td>16\u201328<\/td><td>Sa 2.5<\/td><td>Standard industrial coatings<\/td><\/tr>\n        <tr><td><strong>F150\u2013F180<\/strong><\/td><td>78\u201392<\/td><td>1.5\u20133<\/td><td>8\u201316<\/td><td>Sa 2\u2013Sa 2.5<\/td><td>Precision coatings, glass etch<\/td><\/tr>\n        <tr><td><strong>F220\u2013F320<\/strong><\/td><td>46\u201366<\/td><td>0.5\u20131.5<\/td><td>3\u20138<\/td><td>Sa 2<\/td><td>Thin-film coatings, lapping compounds<\/td><\/tr>\n        <tr><td><strong>F400\u2013F600<\/strong><\/td><td>9\u201323<\/td><td>0.1\u20130.5<\/td><td>0.5\u20132.5<\/td><td>N\/A (lapping)<\/td><td>Optical polishing, semiconductor prep<\/td><\/tr>\n        <tr><td><strong>F800\u2013F1200<\/strong><\/td><td>3\u20136.5<\/td><td>&lt;0.1<\/td><td>&lt;0.5<\/td><td>N\/A (lapping)<\/td><td>Mirror-finish optical, wafer lapping<\/td><\/tr>\n      <\/tbody>\n    <\/table>\n  <\/div>\n  <div class=\"hlh-note\">\n    <span class=\"hlh-note-icon\">\u26a0\ufe0f<\/span>\n    <p><strong>Remarque :<\/strong> Ra values are approximate and depend on blasting pressure, standoff distance, nozzle angle, blast duration, and substrate hardness. Always run a test panel to verify surface profile against your specification before committing to full-production grit selection. Values above are for 70 PSI direct-pressure blasting on carbon steel (HRC 15\u201320).<\/p>\n  <\/div>\n<\/div>\n\n<hr class=\"hlh-divider\">\n\n<div class=\"hlh-section\">\n  <span class=\"hlh-section-anchor\" id=\"application-guide\"><\/span>\n  <h2><span class=\"hlh-h2-num\">SECTION 05<\/span>Application-Specific Grit Selection Guide<\/h2>\n  <div class=\"hlh-table-wrap\">\n    <table class=\"hlh-table\">\n      <thead><tr><th>Application<\/th><th>Substrate<\/th><th>Recommended Grit<\/th><th>Target Profile<\/th><th>Notes<\/th><\/tr><\/thead>\n      <tbody>\n        <tr><td><strong>Heavy structural steel prep<\/strong><\/td><td>Carbon steel, rusty<\/td><td>F16\u2013F36<\/td><td>Ra 10\u201318 \u00b5m<\/td><td>Sa 2.5 \/ Sa 3; high-build epoxy<\/td><\/tr>\n        <tr><td><strong>General metal prep (coating adhesion)<\/strong><\/td><td>Carbon \/ alloy steel<\/td><td>F46\u2013F80<\/td><td>Ra 5\u201310 \u00b5m<\/td><td>Most industrial coatings<\/td><\/tr>\n        <tr><td><strong>Paint stripping<\/strong><\/td><td>Painted steel<\/td><td>F60\u2013F100<\/td><td>Ra 4\u20138 \u00b5m<\/td><td>Adjust for coating thickness<\/td><\/tr>\n        <tr><td><strong>Stainless steel deburring<\/strong><\/td><td>304 \/ 316 SS<\/td><td>F80\u2013F120<\/td><td>Ra 2\u20135 \u00b5m<\/td><td>Use green SiC to avoid iron contamination<\/td><\/tr>\n        <tr><td><strong>Decorative glass etching<\/strong><\/td><td>Soda-lime glass<\/td><td>F80\u2013F150<\/td><td>Ra 2\u20135 \u00b5m<\/td><td>Use rubber stencil \/ vinyl mask<\/td><\/tr>\n        <tr><td><strong>Precision glass etching<\/strong><\/td><td>Borosilicate \/ fused silica<\/td><td>F150\u2013F220<\/td><td>Ra 0.8\u20132 \u00b5m<\/td><td>Lower pressure for fine detail<\/td><\/tr>\n        <tr><td><strong>Concrete scarification<\/strong><\/td><td>Concrete, masonry<\/td><td>F12\u2013F24<\/td><td>CSP 3\u20135<\/td><td>ICRI surface profile classification<\/td><\/tr>\n        <tr><td><strong>Granite \/ stone carving<\/strong><\/td><td>Granite, marble<\/td><td>F24\u2013F60<\/td><td>Variable<\/td><td>Coarser for carving; finer for etch<\/td><\/tr>\n        <tr><td><strong>Titanium aerospace prep<\/strong><\/td><td>Ti-6Al-4V<\/td><td>F100\u2013F180<\/td><td>Ra 1.5\u20134 \u00b5m<\/td><td>Green SiC; verify MIL\/NADCAP spec<\/td><\/tr>\n        <tr><td><strong>Ceramic lapping<\/strong><\/td><td>Alumina, SiC ceramic<\/td><td>F220\u2013F400<\/td><td>Ra 0.2\u20131 \u00b5m<\/td><td>Green SiC preferred<\/td><\/tr>\n        <tr><td><strong>Silicon wafer \/ semiconductor<\/strong><\/td><td>Si, GaAs, SiC wafer<\/td><td>F400\u2013F1200<\/td><td>Ra &lt; 0.1 \u00b5m<\/td><td>Green SiC; ultra-clean process<\/td><\/tr>\n        <tr><td><strong>Rock tumbling (coarse stage)<\/strong><\/td><td>Hard gemstones<\/td><td>F46\u2013F80<\/td><td>N\/A<\/td><td>Progress to finer grits in sequence<\/td><\/tr>\n        <tr><td><strong>Rock tumbling (polish stage)<\/strong><\/td><td>Hard gemstones<\/td><td>F220\u2013F600<\/td><td>N\/A<\/td><td>Final polish with cerium oxide<\/td><\/tr>\n        <tr><td><strong>Anti-slip surface prep<\/strong><\/td><td>Concrete, steel grating<\/td><td>F16\u2013F36<\/td><td>Deep profile<\/td><td>Mixed with paint or epoxy coating<\/td><\/tr>\n        <tr><td><strong>Marine hull prep<\/strong><\/td><td>Steel, aluminum-free areas<\/td><td>F36\u2013F80<\/td><td>Ra 5\u201310 \u00b5m<\/td><td>Sa 2.5 per NORSOK M-501<\/td><\/tr>\n      <\/tbody>\n    <\/table>\n  <\/div>\n<\/div>\n\n<hr class=\"hlh-divider\">\n\n<div class=\"hlh-section\">\n  <span class=\"hlh-section-anchor\" id=\"mistakes\"><\/span>\n  <h2><span class=\"hlh-h2-num\">SECTION 06<\/span>Common Grit Selection Mistakes<\/h2>\n  <ul class=\"hlh-warn-list\">\n    <li><strong>Using too coarse a grit for thin coatings:<\/strong> If the anchor profile depth exceeds 1\/3 of the coating dry film thickness (DFT), coating peaks will be exposed, causing premature corrosion failures. Match profile depth to coating DFT specifications.<\/li>\n    <li><strong>Using too fine a grit for heavy rust:<\/strong> Fine grits (#150+) on heavily corroded steel will take hours to achieve Sa 2.5 cleanliness that a coarse grit (#36\u201360) achieves in minutes. Start coarser; move finer only when profile is already adequate.<\/li>\n    <li><strong>Ordering without specifying standard:<\/strong> Ordering &#8220;#60 SiC&#8221; without specifying FEPA, ANSI, or JIS can result in receiving a different particle size than intended. Always specify the standard for international orders.<\/li>\n    <li><strong>Ignoring wet vs. dry blasting difference:<\/strong> Wet (vapor) blasting produces shallower profiles than dry blasting with identical grit at the same pressure. If switching from dry to wet, compensate with 1\u20132 grit steps coarser.<\/li>\n    <li><strong>Not accounting for substrate hardness:<\/strong> SiC produces deeper profiles on softer substrates (mild steel) than on harder substrates (hardened tool steel) with the same grit. Calibrate profile testing on the actual substrate, not on a proxy material.<\/li>\n  <\/ul>\n<\/div>\n\n<hr class=\"hlh-divider\">\n\n<div class=\"hlh-section\">\n  <span class=\"hlh-section-anchor\" id=\"faq\"><\/span>\n  <h2><span class=\"hlh-h2-num\">SECTION 07<\/span>FAQ<\/h2>\n  <div style=\"border:1px solid var(--c-border);border-radius:var(--r-md);margin-bottom:10px;overflow:hidden\">\n    <div style=\"background:var(--c-panel);padding:13px 17px;font-size:14px;font-weight:600;color:var(--c-heading)\">What grit of silicon carbide should I use for rust removal?<\/div>\n    <div style=\"padding:13px 17px;font-size:13.5px;color:var(--c-steel);border-top:1px solid var(--c-border)\">For heavy rust removal (Grade C or D per ISO 8501-1), use F24\u2013F46 grit at 60\u201390 PSI. This provides fast cutting action, deep anchor profile for subsequent coating, and achieves Sa 2.5 or Sa 3 cleanliness efficiently. For light surface rust on otherwise sound steel (Grade B), F60\u2013F80 may be sufficient and produces a less aggressive profile suitable for thinner coating systems.<\/div>\n  <\/div>\n  <div style=\"border:1px solid var(--c-border);border-radius:var(--r-md);margin-bottom:10px;overflow:hidden\">\n    <div style=\"background:var(--c-panel);padding:13px 17px;font-size:14px;font-weight:600;color:var(--c-heading)\">What is the difference between FEPA F-grit and P-grit?<\/div>\n    <div style=\"padding:13px 17px;font-size:13.5px;color:var(--c-steel);border-top:1px solid var(--c-border)\">FEPA F-grit designates bonded abrasive and loose grain standards (used in blasting, lapping, and grinding wheels). FEPA P-grit designates coated abrasive standards (used for sandpaper). For blasting media, always specify F-grit. The P and F designations use different sizing tolerances \u2014 F240 and P240, for example, refer to slightly different particle size distributions and are not interchangeable.<\/div>\n  <\/div>\n  <div style=\"border:1px solid var(--c-border);border-radius:var(--r-md);overflow:hidden\">\n    <div style=\"background:var(--c-panel);padding:13px 17px;font-size:14px;font-weight:600;color:var(--c-heading)\">Can I mix SiC grit sizes for blasting?<\/div>\n    <div style=\"padding:13px 17px;font-size:13.5px;color:var(--c-steel);border-top:1px solid var(--c-border)\">Yes, and this is common in tumbling and lapping applications where a multi-stage progressive refinement is used. In air blasting, mixed grits produce an intermediate surface profile between the two sizes \u2014 useful when you need a profile between standard grit intervals. For controlled applications, it is generally preferable to use a single classified grit size for predictable Ra results rather than mixing, which introduces profile variability.<\/div>\n  <\/div>\n<\/div>\n\n<hr class=\"hlh-divider\">\n\n<div class=\"hlh-section\">\n  <span class=\"hlh-section-anchor\" id=\"related\"><\/span>\n  <h2><span class=\"hlh-h2-num\">SECTION 08<\/span>Related Guides<\/h2>\n  <div class=\"hlh-related-grid\">\n    <a class=\"hlh-related-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-abrasive-blasting-media-complete-buyers-guide\/\" target=\"_blank\" rel=\"noopener\">\n      <span class=\"hlh-related-tag\">Pillar<\/span>\n      <div class=\"hlh-related-title\">Complete Buyer&#8217;s Guide to SiC Blasting Media<\/div>\n      <div class=\"hlh-related-desc\">Full overview: properties, applications, grit selection, safety, and sourcing.<\/div>\n      <div class=\"hlh-related-arrow\">Read guide \u2192<\/div>\n    <\/a>\n    <a class=\"hlh-related-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/black-silicon-carbide-vs-green-silicon-carbide-whats-the-difference\/\" target=\"_blank\" rel=\"noopener\">\n      <span class=\"hlh-related-tag\">Produit<\/span>\n      <div class=\"hlh-related-title\">Black SiC vs. Green SiC: What&#8217;s the Difference?<\/div>\n      <div class=\"hlh-related-desc\">Purity grades, applications, and when the premium grade is worth the cost.<\/div>\n      <div class=\"hlh-related-arrow\">Read guide \u2192<\/div>\n    <\/a>\n    <a class=\"hlh-related-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/silicon-carbide-sandblasting-for-rust-removal-and-surface-profiling-on-steel\/\" target=\"_blank\" rel=\"noopener\">\n      <span class=\"hlh-related-tag\">Application<\/span>\n      <div class=\"hlh-related-title\">SiC Sandblasting for Rust Removal on Steel<\/div>\n      <div class=\"hlh-related-desc\">ISO 8501 grades, pressure settings, and production rate guidance for steel prep.<\/div>\n      <div class=\"hlh-related-arrow\">Read guide \u2192<\/div>\n    <\/a>\n    <a class=\"hlh-related-card\" href=\"https:\/\/hlh-js.com\/resource\/blog\/is-silicon-carbide-blasting-media-recyclable-reuse-cycles-cost-analysis\/\" target=\"_blank\" rel=\"noopener\">\n      <span class=\"hlh-related-tag\">Economics<\/span>\n      <div class=\"hlh-related-title\">SiC Recyclability &#038; Cost Analysis<\/div>\n      <div class=\"hlh-related-desc\">How many reuse cycles to expect and what that means for total cost of ownership.<\/div>\n      <div class=\"hlh-related-arrow\">Read guide \u2192<\/div>\n    <\/a>\n  <\/div>\n<\/div>\n\n<div class=\"hlh-cta-section\">\n  <h2>Order the Exact Grit You Need \u2014 Direct from Manufacturer<\/h2>\n  <p>Jiangsu Henglihong Technology Co., Ltd. stocks silicon carbide blast media from F10 to F1200 in both Black and Green grades. FEPA, ANSI, and JIS sizing available. Sieve analysis certificate with every lot.<\/p>\n  <a class=\"hlh-cta-btn\" href=\"https:\/\/hlh-js.com\/contact\/\" target=\"_blank\" rel=\"noopener\">Request Grit-Specific Quote \u2192<\/a>\n  <div class=\"hlh-cta-sub\">MOQ from 1 MT \u00b7 25 kg bags, super sacks, or bulk \u00b7 Free sample grains for quality evaluation<\/div>\n<\/div>\n\n<div class=\"hlh-author\">\n  <div class=\"hlh-author-avatar\">\u2699\ufe0f<\/div>\n  <div>\n    <div class=\"hlh-author-name\">Henglihong Technical Content Team<\/div>\n    <div class=\"hlh-author-bio\">Published by Jiangsu Henglihong Technology Co., Ltd. Reviewed by production engineers with direct SiC abrasive manufacturing and QC expertise. Last updated: June 2026.<\/div>\n  <\/div>\n<\/div>\n\n<\/article>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Selection Guide \u00b7 Jiangsu Henglihong Technology Co., Ltd. Silicon Carbide  [&#8230;]<\/p>","protected":false},"author":1,"featured_media":13389,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[62,177,138],"tags":[],"class_list":["post-13387","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-material","category-resource"],"_links":{"self":[{"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/posts\/13387","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/comments?post=13387"}],"version-history":[{"count":2,"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/posts\/13387\/revisions"}],"predecessor-version":[{"id":13390,"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/posts\/13387\/revisions\/13390"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/media\/13389"}],"wp:attachment":[{"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/media?parent=13387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/categories?post=13387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/tags?post=13387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}