{"id":13265,"date":"2026-06-02T02:24:36","date_gmt":"2026-06-02T02:24:36","guid":{"rendered":"https:\/\/hlh-js.com\/?p=13265"},"modified":"2026-06-02T02:41:34","modified_gmt":"2026-06-02T02:41:34","slug":"garnet-surface-profile-guide-achieving-the-right-mils-microns","status":"publish","type":"post","link":"https:\/\/hlh-js.com\/fr\/resource\/blog\/garnet-surface-profile-guide-achieving-the-right-mils-microns\/","title":{"rendered":"Garnet Surface Profile Guide: Achieving the Right Mils &amp; Microns"},"content":{"rendered":"<!-- Cluster 4 of 13 \u00b7 Jiangsu Henglihong Technology Co., Ltd. \u00b7 Gutenberg Custom HTML. 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th{background:var(--acd);color:#fff;text-align:left;padding:13px 15px;font-weight:600;font-size:13px;}\n.gprof td{padding:12px 15px;border-top:1px solid var(--line);color:var(--soft);vertical-align:top;}\n.gprof tbody tr:nth-child(even){background:#FCFAF7;}.gprof td strong{color:var(--acc);}\n.gprof__note{background:#FBF6F0;border-left:4px solid var(--acc);border-radius:0 10px 10px 0;padding:18px 22px;margin:22px 0;}.gprof__note p{margin:0;font-size:15px;}\n.gprof__faq details{background:var(--card);border:1px solid var(--line);border-radius:11px;margin-bottom:11px;}\n.gprof__faq summary{cursor:pointer;list-style:none;padding:16px 20px;font-weight:600;color:var(--ink);font-size:16px;display:flex;justify-content:space-between;gap:14px;}\n.gprof__faq summary::-webkit-details-marker{display:none;}\n.gprof__faq summary::after{content:\"+\";font-family:'Fraunces',serif;font-size:22px;color:var(--acc);transition:.25s;}\n.gprof__faq details[open] summary::after{transform:rotate(45deg);}.gprof__faq div{padding:0 20px 18px;}.gprof__faq div p{margin:0;font-size:15px;}\n.gprof__cta{background:linear-gradient(140deg,var(--acd),var(--dark));color:#fff;border-radius:16px;padding:44px 36px;text-align:center;margin:40px 0 8px;}\n.gprof__cta h2{color:#fff;margin-bottom:12px;}.gprof__cta p{color:rgba(255,255,255,.85);max-width:520px;margin:0 auto 22px;}\n.gprof__meta{font-size:13px;color:var(--soft);text-align:center;padding:14px 0 44px;opacity:.8;}\n@media(max-width:640px){.gprof__hero{padding:50px 20px 46px;}.gprof__cta{padding:32px 22px;}}\n@media (prefers-reduced-motion:reduce){.gprof *{animation:none!important;}}\n<\/style>\n\n<div class=\"gprof\">\n  <section class=\"gprof__hero\"><div class=\"gprof__hi\">\n    <span class=\"gprof__eb\">Coating Performance \u00b7 Jiangsu Henglihong Technology<\/span>\n    <h1>Garnet Surface Profile Guide: Achieving the Right Mils &amp; Microns<\/h1>\n    <p class=\"gprof__lede\">Coating adhesion lives or dies on the anchor profile. Here&#8217;s how garnet grade, pressure and technique combine to hit the exact mils your specification calls for.<\/p>\n    <a class=\"gprof__btn\" href=\"https:\/\/hlh-js.com\/contact\/\" target=\"_blank\" rel=\"noopener\">Talk to a Specialist &rarr;<\/a>\n  <\/div><\/section>\n\n  <div class=\"gprof__wrap gprof__body\">\n    <nav class=\"gprof__toc\"><b>Table of Contents<\/b><ol>\n      <li><a href=\"#gprof-what\">What Surface Profile Is<\/a><\/li>\n      <li><a href=\"#gprof-std\">Cleanliness Standards<\/a><\/li>\n      <li><a href=\"#gprof-grade\">Grade-to-Profile Table<\/a><\/li>\n      <li><a href=\"#gprof-control\">Controlling the Profile<\/a><\/li>\n      <li><a href=\"#gprof-faq\">FAQ<\/a><\/li>\n    <\/ol><\/nav>\n\n    <section class=\"gprof__s\" id=\"gprof-what\">\n      <div class=\"gprof__k\">D\u00e9finition<\/div>\n      <h2>What Surface Profile Is<\/h2>\n      <p>Surface profile &mdash; also called anchor pattern or surface roughness &mdash; is the peak-to-valley texture created when abrasive strikes the substrate. It is measured in <strong>mils<\/strong> (thousandths of an inch) or <strong>microns<\/strong>, where 1 mil equals 25.4 microns. The profile gives a coating the mechanical key it needs to bond; too shallow and the coating peels, too deep and peaks may protrude through thin films and rust.<\/p>\n      <p>Getting it right is the entire reason for grade selection &mdash; which we cover in detail in our <a href=\"https:\/\/hlh-js.com\/resource\/blog\/garnet-mesh-size-chart-how-to-choose-the-right-grade\/\" target=\"_blank\" rel=\"noopener\">garnet mesh size chart<\/a>.<\/p>\n    <\/section>\n\n    <section class=\"gprof__s\" id=\"gprof-std\">\n      <div class=\"gprof__k\">Specifications<\/div>\n      <h2>Cleanliness Standards<\/h2>\n      <p>Profile works alongside a cleanliness standard that defines how much rust and scale must be removed. The most common references are:<\/p>\n      <ul>\n        <li><strong>ISO 8501-1<\/strong> &mdash; visual cleanliness grades such as Sa 2&frac12; (near-white) and Sa 3 (white metal).<\/li>\n        <li><strong>SSPC-SP 10 \/ NACE No. 2<\/strong> &mdash; the widely used near-white metal standard.<\/li>\n        <li><strong>SSPC-SP 5 \/ NACE No. 1<\/strong> &mdash; white metal, the most demanding.<\/li>\n      <\/ul>\n      <p>Your coating manufacturer&#8217;s data sheet specifies both the cleanliness grade and the target profile range. Always blast to the spec, not to habit.<\/p>\n    <\/section>\n\n    <section class=\"gprof__s\" id=\"gprof-grade\">\n      <div class=\"gprof__k\">R\u00e9f\u00e9rence<\/div>\n      <h2>Grade-to-Profile Table<\/h2>\n      <div class=\"gprof__tw\"><table><thead><tr><th>Garnet Grade<\/th><th>Typical Profile<\/th><th>Suited Coating Type<\/th><\/tr><\/thead><tbody>\n        <tr><td><strong>20\/40<\/strong><\/td><td>3.5&ndash;4.5 mil (90&ndash;115 &micro;m)<\/td><td>Heavy epoxies, thermal spray<\/td><\/tr>\n        <tr><td><strong>30\/60<\/strong><\/td><td>2.5&ndash;3.5 mil (65&ndash;90 &micro;m)<\/td><td>General protective coatings<\/td><\/tr>\n        <tr><td><strong>80<\/strong><\/td><td>1.5&ndash;2.5 mil (40&ndash;65 &micro;m)<\/td><td>Thin-film and high-build paints<\/td><\/tr>\n        <tr><td><strong>120<\/strong><\/td><td>1.0&ndash;2.0 mil (25&ndash;50 &micro;m)<\/td><td>Precision, non-ferrous coatings<\/td><\/tr>\n      <\/tbody><\/table><\/div>\n      <div class=\"gprof__note\"><p><strong>Remarque :<\/strong> figures are typical guides. Actual profile shifts with nozzle pressure, standoff distance and substrate hardness &mdash; always verify with replica tape or a profile gauge.<\/p><\/div>\n    <\/section>\n\n    <section class=\"gprof__s\" id=\"gprof-control\">\n      <div class=\"gprof__k\">Technique<\/div>\n      <h2>Controlling the Profile<\/h2>\n      <p>Beyond grade selection, three variables let you fine-tune the result:<\/p>\n      <ol>\n        <li><strong>Air pressure<\/strong> &mdash; higher pressure deepens the profile and speeds cutting; back off to protect thin substrates.<\/li>\n        <li><strong>Standoff &amp; angle<\/strong> &mdash; closer nozzle and a steeper angle increase impact energy.<\/li>\n        <li><strong>Abrasive flow<\/strong> &mdash; a controlled, metered flow gives a more uniform pattern than overloading the stream.<\/li>\n      <\/ol>\n      <p>Garnet&#8217;s sharp, consistent grains make the profile predictable with few rogue peaks &mdash; one of its biggest advantages over slag and recycled abrasives. For the full material context, see our guide to <a href=\"https:\/\/hlh-js.com\/resource\/blog\/garnet-abrasive-blast-media\/\" target=\"_blank\" rel=\"noopener\">garnet abrasive blast media<\/a>.<\/p>\n    <\/section>\n\n    <section class=\"gprof__s gprof__faq\" id=\"gprof-faq\">\n      <div class=\"gprof__k\">Questions<\/div><h2>Questions fr\u00e9quemment pos\u00e9es<\/h2>\n      <details><summary>How do I measure surface profile?<\/summary><div><p>Common methods are replica (testex) tape read with a micrometer, or a digital profile depth gauge, both giving a reading in mils or microns.<\/p><\/div><\/details>\n      <details><summary>What profile do most coatings need?<\/summary><div><p>Many general protective coatings target 2.5&ndash;3.5 mil, achievable with 30\/60 garnet, but always follow the coating manufacturer&#8217;s data sheet.<\/p><\/div><\/details>\n      <details><summary>Does a deeper profile always mean better adhesion?<\/summary><div><p>No. An over-deep profile can leave peaks exposed through thin coatings, causing premature rust. Match the profile to the coating thickness.<\/p><\/div><\/details>\n    <\/section>\n\n    <section class=\"gprof__cta\">\n      <h2>Hit Your Profile Spec First Time<\/h2>\n      <p>Jiangsu Henglihong Technology supplies consistently graded garnet so your profile stays predictable batch to batch. Request a recommendation and quote.<\/p>\n      <a class=\"gprof__btn\" href=\"https:\/\/hlh-js.com\/contact\/\" target=\"_blank\" rel=\"noopener\">Get a Quote &rarr;<\/a>\n    <\/section>\n    <p class=\"gprof__meta\">Jiangsu Henglihong Technology Co., Ltd. \u00b7 Last updated June 2026<\/p>\n  <\/div>\n<\/div>\n\n<script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"Article\",\n    \"headline\": \"Garnet Surface Profile Guide: Achieving the Right Mils & Microns\",\n    \"author\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Jiangsu Henglihong Technology Co., Ltd.\"\n    },\n    \"publisher\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Jiangsu Henglihong Technology Co., Ltd.\",\n        \"url\": \"https:\\\/\\\/hlh-js.com\\\/\"\n    },\n    \"datePublished\": \"2026-06-01\",\n    \"dateModified\": \"2026-06-01\",\n    \"mainEntityOfPage\": {\n        \"@type\": \"WebPage\",\n        \"@id\": \"https:\\\/\\\/hlh-js.com\\\/resource\\\/blog\\\/garnet-surface-profile-guide-achieving-the-right-mils-microns\\\/\"\n    }\n}<\/script>\n<script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I measure surface profile?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Common methods are replica (testex) tape read with a micrometer, or a digital profile depth gauge, both giving a reading in mils or microns.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What profile do most coatings need?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Many general protective coatings target 2.5-3.5 mil, achievable with 30\\\/60 garnet, but always follow the coating manufacturer's data sheet.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does a deeper profile always mean better adhesion?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. An over-deep profile can leave peaks exposed through thin coatings, causing premature rust. 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