{"id":12440,"date":"2026-03-09T08:35:14","date_gmt":"2026-03-09T08:35:14","guid":{"rendered":"https:\/\/hlh-js.com\/?p=12440"},"modified":"2026-03-09T08:35:16","modified_gmt":"2026-03-09T08:35:16","slug":"plastic-blast-media-gentle-stripping-without-substrate-damage","status":"publish","type":"post","link":"https:\/\/hlh-js.com\/fr\/resource\/blog\/plastic-blast-media-gentle-stripping-without-substrate-damage\/","title":{"rendered":"Plastic Blast Media: Gentle Stripping Without Substrate Damage"},"content":{"rendered":"<style>\n.hlh-c8*,.hlh-c8*::before,.hlh-c8*::after{box-sizing:border-box}\n.hlh-c8{\n  --brand:#1a4f8a;--brand-light:#e8f0fb;--brand-mid:#2e6db4;\n  --accent:#e07b2a;--accent-light:#fff4ea;\n  --green:#166534;--green-bg:#dcfce7;\n  --red:#991b1b;--red-bg:#fee2e2;--yellow-bg:#fefce8;\n  --text:#1c2333;--muted:#5a6478;--border:#d8e2ef;--radius:8px;\n  \/* Plastic media accent \u2014 teal\/green (composite\/aerospace) *\/\n  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ul{list-style:none;margin:0;padding:0}\n.c8-rel li{margin-bottom:7px}\n.c8-rel a{font-family:'Trebuchet MS',sans-serif;font-size:.89rem;color:var(--brand-mid);text-decoration:none;display:inline-flex;align-items:center;gap:5px}\n.c8-rel a::before{content:'&#8594;';color:var(--accent)}\n.c8-rel a:hover{color:var(--accent);text-decoration:underline}\n@media(max-width:640px){\n  .c8-hero{padding:26px 18px}\n  .c8-toc ol{columns:1}\n  .c8-types{grid-template-columns:1fr}\n  .c8-pc,.c8-apps{grid-template-columns:1fr}\n  .c8-strip-label{width:130px;font-size:.75rem}\n  .c8-pressure{grid-template-columns:1fr 1fr}\n}\n<\/style>\n\n<article class=\"hlh-c8\" itemscope itemtype=\"https:\/\/schema.org\/Article\">\n\n\n\n<div class=\"c8-hero\">\n  <h1 itemprop=\"headline\">Plastic Blast Media: Gentle Stripping Without Substrate Damage<\/h1>\n  <p class=\"sub\">The complete guide to plastic blast media &mdash; urea, melamine, and acrylic resin types, why aerospace and automotive industries specify plastic for composite and aluminium stripping, grit size selection, operating pressure guidelines, and factory-direct bulk pricing.<\/p>\n  \n<\/div>\n\n<div class=\"c8-pillar\">\n  &#128218; Part of our complete resource: <a href=\"https:\/\/hlh-js.com\/resource\/blog\/what-is-abrasive-media-types-uses-complete-selection-guide\/\">What Is Abrasive Media? The Ultimate Guide<\/a> &mdash; covering all media types, blasting fundamentals, safety standards, and buying guidance.\n<\/div>\n\n<nav class=\"c8-toc\" aria-label=\"Table of Contents\">\n  <p class=\"c8-toc-title\">&#128203; Table of Contents<\/p>\n  <ol>\n    <li><a href=\"#c8-what\">What Is Plastic Blast Media?<\/a><\/li>\n    <li><a href=\"#c8-types\">Three Resin Types Compared<\/a><\/li>\n    <li><a href=\"#c8-specs\">Key Technical Specifications<\/a><\/li>\n    <li><a href=\"#c8-how\">How Plastic Media Strips Without Damage<\/a><\/li>\n    <li><a href=\"#c8-grit\">Grit Size Selection Guide<\/a><\/li>\n    <li><a href=\"#c8-pressure\">Operating Pressure Guidelines<\/a><\/li>\n    <li><a href=\"#c8-apps\">Industrial Applications<\/a><\/li>\n    <li><a href=\"#c8-pc\">Pros &amp; Cons<\/a><\/li>\n    <li><a href=\"#c8-vs\">Plastic Media vs Alternatives<\/a><\/li>\n    <li><a href=\"#c8-recycle\">Recyclability &amp; Waste<\/a><\/li>\n    <li><a href=\"#c8-safety\">Safety &amp; Compliance<\/a><\/li>\n    <li><a href=\"#c8-order\">Ordering from Henglihong<\/a><\/li>\n    <li><a href=\"#c8-faq\">FAQ<\/a><\/li>\n  <\/ol>\n<\/nav>\n\n<h2 id=\"c8-what\">What Is Plastic Blast Media?<\/h2>\n\n<p>Plastic blast media consists of angular particles manufactured from thermoset plastic resins &mdash; primarily urea formaldehyde, melamine formaldehyde, and acrylic (polymethyl methacrylate). Unlike virtually every other blast media type, plastic media is engineered to be <em>softer than the substrate it is cleaning<\/em>. This counterintuitive design principle is precisely what makes it indispensable in aerospace, automotive, and defence maintenance operations: it removes coatings without abrading, scratching, or dimensionally altering the underlying component.<\/p>\n\n<p>The defining characteristic of plastic blast media is its Mohs hardness of 3 to 4 &mdash; softer than aluminium alloy (Mohs 2.5&ndash;3 for the oxide surface layer, but the underlying alloy is harder), harder than the organic paint and coating systems it is designed to remove. This narrow hardness window enables selective stripping: the plastic particles shatter paint films, strip primer layers, and remove coatings by impact fracture without having enough hardness to cut into or profile the metal or composite surface beneath.<\/p>\n\n<p>For a full comparison with all other abrasive media types see our <a href=\"https:\/\/hlh-js.com\/resource\/blog\/abrasive-media-comparison-chart-hardness-grit-cost-guide\/\">Abrasive Media Comparison Chart<\/a> or the <a href=\"https:\/\/hlh-js.com\/resource\/blog\/how-to-choose-the-right-abrasive-media-for-your-project\/\">media selection guide<\/a>.<\/p>\n\n<div class=\"c8-specs\" aria-label=\"Plastic blast media key specifications\">\n  <div class=\"c8-spec\"><div class=\"c8-spec-lbl\">Duret\u00e9 Mohs<\/div><div class=\"c8-spec-val\">3.0 &ndash; 4.0<\/div><div class=\"c8-spec-note\">Softer than all metals<\/div><\/div>\n  <div class=\"c8-spec\"><div class=\"c8-spec-lbl\">Forme des particules<\/div><div class=\"c8-spec-val\">Angulaire<\/div><div class=\"c8-spec-note\">Irregular fractured<\/div><\/div>\n  <div class=\"c8-spec\"><div class=\"c8-spec-lbl\">Grit Range<\/div><div class=\"c8-spec-val\">12 &ndash; 80<\/div><div class=\"c8-spec-note\">Coarse to fine<\/div><\/div>\n  <div class=\"c8-spec\"><div class=\"c8-spec-lbl\">Recyclabilit\u00e9<\/div><div class=\"c8-spec-val\">3 &ndash; 10&times;<\/div><div class=\"c8-spec-note\">Type &amp; pressure dependent<\/div><\/div>\n  <div class=\"c8-spec\"><div class=\"c8-spec-lbl\">Densit\u00e9 r\u00e9elle<\/div><div class=\"c8-spec-val\">1.3 &ndash; 1.5 g\/cm&sup3;<\/div><div class=\"c8-spec-note\">Very light media<\/div><\/div>\n  <div class=\"c8-spec\"><div class=\"c8-spec-lbl\">Substrate Profile<\/div><div class=\"c8-spec-val\">Zero to trace<\/div><div class=\"c8-spec-note\">No anchor profile created<\/div><\/div>\n  <div class=\"c8-spec\"><div class=\"c8-spec-lbl\">Iron Contamination<\/div><div class=\"c8-spec-val\">Aucun<\/div><div class=\"c8-spec-note\">Safe on all metals<\/div><\/div>\n  <div class=\"c8-spec\"><div class=\"c8-spec-lbl\">Crystalline Silica<\/div><div class=\"c8-spec-val\">Aucun<\/div><div class=\"c8-spec-note\">OSHA-compliant &#10003;<\/div><\/div>\n<\/div>\n\n<h2 id=\"c8-types\">Three Plastic Resin Types &mdash; Which Grade Do You Need?<\/h2>\n\n<p>Commercial plastic blast media is available in three principal resin formulations. Each has distinct hardness, density, friability, and stripping aggressiveness that make it optimal for different applications and substrate sensitivities.<\/p>\n\n<div class=\"c8-types\">\n  <div class=\"c8-type-card\">\n    <div class=\"c8-type-hdr urea\">Urea Formaldehyde<span class=\"th-sub\">Most aggressive &mdash; toughest resin<\/span><\/div>\n    <div class=\"c8-type-body\">\n      <ul>\n        <li>Hardest of the three plastic types (Mohs ~3.5&ndash;4.0)<\/li>\n        <li>Highest density &mdash; delivers maximum impact energy<\/li>\n        <li>Most aggressive stripping action &mdash; fastest cycle times<\/li>\n        <li>Best for multi-layer paint systems and thick primer builds<\/li>\n        <li>Some risk of surface scuffing on very thin aluminium skin<\/li>\n        <li>Most widely stocked; most cost-effective type<\/li>\n      <\/ul>\n      <div class=\"tspec\">\n        <div class=\"tspec-row\"><span class=\"tk\">Mohs hardness<\/span><span class=\"tv\">3.5 &ndash; 4.0<\/span><\/div>\n        <div class=\"tspec-row\"><span class=\"tk\">True density<\/span><span class=\"tv\">~1.5 g\/cm&sup3;<\/span><\/div>\n        <div class=\"tspec-row\"><span class=\"tk\">Best substrate<\/span><span class=\"tv\">Al alloy, steel, GFRP<\/span><\/div>\n        <div class=\"tspec-row\"><span class=\"tk\">Recyclabilit\u00e9<\/span><span class=\"tv\">3&ndash;5 cycles<\/span><\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n  <div class=\"c8-type-card\">\n    <div class=\"c8-type-hdr melamine\">Melamine Formaldehyde<span class=\"th-sub\">Mid-range &mdash; balanced performance<\/span><\/div>\n    <div class=\"c8-type-body\">\n      <ul>\n        <li>Intermediate hardness (Mohs ~3.0&ndash;3.5)<\/li>\n        <li>Good balance of stripping speed and substrate safety<\/li>\n        <li>Lower friability than urea &mdash; slightly longer media life<\/li>\n        <li>Preferred for CFRP and thin aluminium aerostructure skins<\/li>\n        <li>Widely specified in commercial aviation MRO operations<\/li>\n        <li>Used in military aircraft paint stripping programs<\/li>\n      <\/ul>\n      <div class=\"tspec\">\n        <div class=\"tspec-row\"><span class=\"tk\">Mohs hardness<\/span><span class=\"tv\">3.0 &ndash; 3.5<\/span><\/div>\n        <div class=\"tspec-row\"><span class=\"tk\">True density<\/span><span class=\"tv\">~1.4 g\/cm&sup3;<\/span><\/div>\n        <div class=\"tspec-row\"><span class=\"tk\">Best substrate<\/span><span class=\"tv\">CFRP, thin Al skin, Mg alloy<\/span><\/div>\n        <div class=\"tspec-row\"><span class=\"tk\">Recyclabilit\u00e9<\/span><span class=\"tv\">5&ndash;8 cycles<\/span><\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n  <div class=\"c8-type-card\">\n    <div class=\"c8-type-hdr acrylic\">Acrylic (PMMA)<span class=\"th-sub\">Gentlest &mdash; precision surfaces<\/span><\/div>\n    <div class=\"c8-type-body\">\n      <ul>\n        <li>Softest plastic type (Mohs ~3.0)<\/li>\n        <li>Lowest density &mdash; lowest impact energy; gentlest action<\/li>\n        <li>Very low risk of substrate scuffing or thinning<\/li>\n        <li>Suitable for magnesium alloys, very thin laminates, and optical surfaces<\/li>\n        <li>Longest recyclability of the three types<\/li>\n        <li>Higher cost than urea; used in specialist precision applications<\/li>\n      <\/ul>\n      <div class=\"tspec\">\n        <div class=\"tspec-row\"><span class=\"tk\">Mohs hardness<\/span><span class=\"tv\">~3.0<\/span><\/div>\n        <div class=\"tspec-row\"><span class=\"tk\">True density<\/span><span class=\"tv\">~1.3 g\/cm&sup3;<\/span><\/div>\n        <div class=\"tspec-row\"><span class=\"tk\">Best substrate<\/span><span class=\"tv\">Mg alloy, thin laminates, optics<\/span><\/div>\n        <div class=\"tspec-row\"><span class=\"tk\">Recyclabilit\u00e9<\/span><span class=\"tv\">7&ndash;10 cycles<\/span><\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/div>\n\n<h2 id=\"c8-specs\">Key Technical Specifications<\/h2>\n\n<div class=\"c8-tw\">\n  <table class=\"c8-tbl\">\n    <caption>Technical specifications for Henglihong plastic blast media &mdash; all three resin grades. Full COA and SDS available on request.<\/caption>\n    <thead><tr><th>Param\u00e8tres<\/th><th>Urea Formaldehyde<\/th><th>Melamine Formaldehyde<\/th><th>Acrylic (PMMA)<\/th><\/tr><\/thead>\n    <tbody>\n      <tr><td class=\"col-hl\">Resin base<\/td><td>Urea formaldehyde thermoset<\/td><td>Melamine formaldehyde thermoset<\/td><td>Polymethyl methacrylate<\/td><\/tr>\n      <tr><td class=\"col-hl\">Mohs hardness<\/td><td>3.5 &ndash; 4.0<\/td><td>3.0 &ndash; 3.5<\/td><td>~3.0<\/td><\/tr>\n      <tr><td class=\"col-hl\">True density (g\/cm&sup3;)<\/td><td>~1.50<\/td><td>~1.42<\/td><td>~1.30<\/td><\/tr>\n      <tr><td class=\"col-hl\">Forme des particules<\/td><td colspan=\"3\" style=\"text-align:center\">Angular, irregular (all types)<\/td><\/tr>\n      <tr><td class=\"col-hl\">Available grit sizes<\/td><td colspan=\"3\" style=\"text-align:center\">12, 16, 20, 30, 40, 60, 80 (US grit) &mdash; all types<\/td><\/tr>\n      <tr><td class=\"col-hl\">Surface profile created<\/td><td colspan=\"3\" style=\"text-align:center\"><span class=\"b b-g\">Zero to trace (&lt;0.3 mil) &mdash; no measurable anchor profile<\/span><\/td><\/tr>\n      <tr><td class=\"col-hl\">Recyclability (typical)<\/td><td>3 &ndash; 5 cycles<\/td><td>5 &ndash; 8 cycles<\/td><td>7 &ndash; 10 cycles<\/td><\/tr>\n      <tr><td class=\"col-hl\">Crystalline silica<\/td><td colspan=\"3\" style=\"text-align:center\"><span class=\"b b-g\">None &mdash; OSHA compliant<\/span><\/td><\/tr>\n      <tr><td class=\"col-hl\">Iron contamination<\/td><td colspan=\"3\" style=\"text-align:center\"><span class=\"b b-g\">None &mdash; safe on stainless, Al, Ti, composites<\/span><\/td><\/tr>\n      <tr><td class=\"col-hl\">Max operating pressure<\/td><td>60 psi (composite) \/ 80 psi (metal)<\/td><td>50 psi (composite) \/ 70 psi (metal)<\/td><td>40 psi (composite) \/ 60 psi (metal)<\/td><\/tr>\n      <tr><td class=\"col-hl\">Applicable standards<\/td><td colspan=\"3\" style=\"text-align:center\">MIL-P-85891A &middot; AMS 2441 &middot; Boeing BAC 5748 &middot; Airbus AIMS 09-00-001<\/td><\/tr>\n    <\/tbody>\n  <\/table>\n<\/div>\n\n<h2 id=\"c8-how\">How Plastic Media Strips Without Substrate Damage<\/h2>\n\n<p>The mechanism by which plastic media removes coatings without damaging the substrate is not magic &mdash; it is a precisely calibrated hardness differential exploiting the physics of impact fracture at organic coating interfaces.<\/p>\n\n<p>When a plastic blast particle strikes a painted surface at 50&ndash;80 psi, the sequence of events is as follows:<\/p>\n<ol>\n  <li><strong>Impact compression:<\/strong> The angular plastic particle strikes the paint film at high velocity. Its hardness (Mohs ~3.5) exceeds that of the cured organic coating system (Mohs ~1.5&ndash;2.5 for most air-dry and thermosetting topcoats).<\/li>\n  <li><strong>Coating fracture:<\/strong> The paint film fails in compression and shear beneath the impact point, fracturing and delaminating from the primer or substrate interface.<\/li>\n  <li><strong>Particle self-destruction:<\/strong> The plastic particle itself also fractures on impact &mdash; this is by design. The particle&rsquo;s friability dissipates residual energy, preventing it from rebounding with sufficient velocity to damage the substrate after stripping the coating.<\/li>\n  <li><strong>Substrate preservation:<\/strong> The substrate (typically aluminium alloy Mohs ~6.5 or CFRP epoxy resin Mohs ~3.5&ndash;4) is not significantly abraded because the plastic particle has lost most of its kinetic energy in the initial coating fracture.<\/li>\n<\/ol>\n\n<div class=\"c8-co co-pl\">\n  <span class=\"c8-co-icon\">&#9993;&#65039;<\/span>\n  <div class=\"c8-co-body\">\n    <strong>The stripping window &mdash; why hardness calibration matters<\/strong>\n    <p>This mechanism only works correctly within a specific hardness window. Too soft (below Mohs 2.5) and the plastic particles deform on impact rather than fracturing the paint &mdash; no stripping occurs. Too hard (above Mohs 4.5) and the particles begin to abrade the substrate before the coating is fully removed. The three resin types &mdash; urea, melamine, acrylic &mdash; span this window at different points, giving operators the ability to select the aggressiveness level appropriate to the specific substrate and coating system combination.<\/p>\n  <\/div>\n<\/div>\n\n<h3>Stripping Capability by Coating Type<\/h3>\n<div class=\"c8-strip\" aria-label=\"Plastic blast media stripping effectiveness by coating type\">\n  <p class=\"c8-strip-title\">Stripping Effectiveness by Coating Type (Urea Formaldehyde, 20 mesh, 60 psi)<\/p>\n  <div class=\"c8-strip-row\"><span class=\"c8-strip-label\">Polyurethane topcoat<\/span><div class=\"c8-strip-track\"><div class=\"c8-strip-fill\" style=\"width:92%;background:#0d9488\">Excellent &mdash; single pass<\/div><\/div><\/div>\n  <div class=\"c8-strip-row\"><span class=\"c8-strip-label\">Epoxy primer<\/span><div class=\"c8-strip-track\"><div class=\"c8-strip-fill\" style=\"width:84%;background:#0f766e\">Very good &mdash; 1&ndash;2 passes<\/div><\/div><\/div>\n  <div class=\"c8-strip-row\"><span class=\"c8-strip-label\">Alkyd enamel<\/span><div class=\"c8-strip-track\"><div class=\"c8-strip-fill\" style=\"width:80%;background:#0f766e\">Very good &mdash; 1&ndash;2 passes<\/div><\/div><\/div>\n  <div class=\"c8-strip-row\"><span class=\"c8-strip-label\">Acrylic lacquer<\/span><div class=\"c8-strip-track\"><div class=\"c8-strip-fill\" style=\"width:75%;background:#0d9488\">Good &mdash; 1&ndash;2 passes<\/div><\/div><\/div>\n  <div class=\"c8-strip-row\"><span class=\"c8-strip-label\">Multi-layer paint system (4+ coats)<\/span><div class=\"c8-strip-track\"><div class=\"c8-strip-fill\" style=\"width:65%;background:#d97706\">Good &mdash; multiple passes<\/div><\/div><\/div>\n  <div class=\"c8-strip-row\"><span class=\"c8-strip-label\">Powder coat<\/span><div class=\"c8-strip-track\"><div class=\"c8-strip-fill\" style=\"width:55%;background:#d97706\">Moderate &mdash; higher pressure needed<\/div><\/div><\/div>\n  <div class=\"c8-strip-row\"><span class=\"c8-strip-label\">Hard anodize (not a coating)<\/span><div class=\"c8-strip-track\"><div class=\"c8-strip-fill\" style=\"width:18%;background:#dc2626\">Not effective &mdash; integral surface treatment<\/div><\/div><\/div>\n<\/div>\n\n<h2 id=\"c8-grit\">Grit Size Selection Guide<\/h2>\n\n<p>Grit size selection for plastic blast media follows the same principle as for other abrasives &mdash; larger particles carry more kinetic energy and strip faster, while smaller particles produce a finer surface condition and are appropriate for thinner coatings or more sensitive substrates. The key difference from mineral or metallic abrasives is that grit size does not significantly change the surface profile, since even coarse plastic media creates negligible measurable anchor profile.<\/p>\n\n<div class=\"c8-tw\">\n  <table class=\"c8-tbl\">\n    <caption>Plastic blast media grit size selection reference. Urea formaldehyde grade at 60 psi unless noted.<\/caption>\n    <thead><tr><th>Grit Size<\/th><th>Particle Size (\u00b5m)<\/th><th>Stripping Speed<\/th><th>Substrate Sensitivity<\/th><th>Best Applications<\/th><\/tr><\/thead>\n    <tbody>\n      <tr><td class=\"col-hl\">12 &ndash; 16<\/td><td>1,700 &ndash; 1,180<\/td><td><span class=\"b b-r\">Fast &mdash; aggressive<\/span><\/td><td>Low &mdash; thicker substrates<\/td><td>Thick multi-layer paint removal from steel, heavy structural aluminium, and fibreglass panels<\/td><\/tr>\n      <tr><td class=\"col-hl\">20<\/td><td>850<\/td><td><span class=\"b b-y\">Medium-fast<\/span><\/td><td>Mod\u00e9r\u00e9<\/td><td>Standard aircraft fuselage repainting prep; automotive bodywork multi-coat stripping; general MRO<\/td><\/tr>\n      <tr><td class=\"col-hl\">30<\/td><td>600<\/td><td><span class=\"b b-y\">Medium<\/span><\/td><td>Moderate-high<\/td><td>Commercial aviation airframe skin stripping; CFRP panel repainting; standard production cycles<\/td><\/tr>\n      <tr><td class=\"col-hl\">40<\/td><td>425<\/td><td><span class=\"b b-g\">Medium-slow<\/span><\/td><td>High &mdash; thin substrates<\/td><td>Thin aluminium alloy skins (0.6&ndash;1.0 mm); CFRP stringers and frames; control surface stripping<\/td><\/tr>\n      <tr><td class=\"col-hl\">60<\/td><td>250<\/td><td><span class=\"b b-g\">Slow &mdash; gentle<\/span><\/td><td>Very high<\/td><td>Magnesium alloy components; honeycomb sandwich panels; very thin laminates; precision aerospace parts<\/td><\/tr>\n      <tr><td class=\"col-hl\">80<\/td><td>180<\/td><td><span class=\"b b-g\">Very slow &mdash; precision<\/span><\/td><td>Maximum<\/td><td>Optical surfaces, instrument housings, very thin coatings on precision machined components<\/td><\/tr>\n    <\/tbody>\n  <\/table>\n<\/div>\n\n<h2 id=\"c8-pressure\">Operating Pressure Guidelines<\/h2>\n\n<p>Blast pressure is the most critical operating variable for plastic media. Unlike mineral abrasives where higher pressure generally means faster work and lower cost, excessive pressure with plastic media removes coatings so aggressively that the self-shattering dissipation mechanism is overwhelmed &mdash; the particles retain enough kinetic energy post-coating-removal to abrade the substrate. The maximum pressures below are conservative industry guidelines; always validate on a test coupon before production blasting.<\/p>\n\n<div class=\"c8-pressure\" aria-label=\"Plastic blast media operating pressure guide by substrate\">\n  <div class=\"c8-pcard\">\n    <div class=\"c8-pcard-title\">Carbon-Fibre Composite (CFRP)<\/div>\n    <div class=\"c8-pcard-psi\">30 &ndash; 50 psi<\/div>\n    <div class=\"c8-pcard-use\">Melamine or acrylic grade recommended. CFRP fibres can be cut by over-pressure. Validate on scrap panel first.<\/div>\n  <\/div>\n  <div class=\"c8-pcard\">\n    <div class=\"c8-pcard-title\">Glass-Fibre Composite (GFRP)<\/div>\n    <div class=\"c8-pcard-psi\">40 &ndash; 60 psi<\/div>\n    <div class=\"c8-pcard-use\">Urea or melamine grade. GFRP more tolerant than CFRP but fibre exposure risk remains above 60 psi.<\/div>\n  <\/div>\n  <div class=\"c8-pcard\">\n    <div class=\"c8-pcard-title\">Thin Aluminium Skin (&lt;1 mm)<\/div>\n    <div class=\"c8-pcard-psi\">40 &ndash; 60 psi<\/div>\n    <div class=\"c8-pcard-use\">Melamine grade; 40-mesh minimum. Perpendicular angle risk of dimpling &mdash; use 30&ndash;45&deg; blast angle.<\/div>\n  <\/div>\n  <div class=\"c8-pcard\">\n    <div class=\"c8-pcard-title\">Standard Aluminium Alloy<\/div>\n    <div class=\"c8-pcard-psi\">50 &ndash; 80 psi<\/div>\n    <div class=\"c8-pcard-use\">Urea or melamine grade. Most airframe structure falls in this category. Standard production pressures.<\/div>\n  <\/div>\n  <div class=\"c8-pcard\">\n    <div class=\"c8-pcard-title\">Magnesium Alloy<\/div>\n    <div class=\"c8-pcard-psi\">30 &ndash; 45 psi<\/div>\n    <div class=\"c8-pcard-use\">Acrylic grade only. Magnesium is very easily abraded; lowest practicable pressure and finest grit.<\/div>\n  <\/div>\n  <div class=\"c8-pcard\">\n    <div class=\"c8-pcard-title\">Steel \/ Titanium<\/div>\n    <div class=\"c8-pcard-psi\">60 &ndash; 100 psi<\/div>\n    <div class=\"c8-pcard-use\">Urea grade. Hard substrates tolerate higher pressure; use where coating removal is the goal and profile is not required.<\/div>\n  <\/div>\n<\/div>\n\n<div class=\"c8-co co-warn\">\n  <span class=\"c8-co-icon\">&#9888;&#65039;<\/span>\n  <div class=\"c8-co-body\">\n    <strong>Always test on a scrap coupon before production blasting composites<\/strong>\n    <p>CFRP and GFRP substrates vary significantly in fibre orientation, resin type, ply thickness, and surface condition &mdash; all of which affect the appropriate blast pressure. A scrap panel or non-critical area of the same component should be blasted first at the proposed parameters. Inspect under 10x magnification for fibre exposure or surface glossy resin removal before proceeding to production stripping. Once CFRP fibres are exposed, the damage is not reversible.<\/p>\n  <\/div>\n<\/div>\n\n<h2 id=\"c8-apps\">Industrial Applications<\/h2>\n\n<div class=\"c8-apps\">\n  <div class=\"c8-ac\">\n    <span class=\"aci\">&#9992;&#65039;<\/span>\n    <h4>Aircraft MRO Paint Stripping<\/h4>\n    <p>Maintenance, Repair, and Overhaul (MRO) operations at aircraft hangar facilities strip fuselages, wings, empennage, and control surfaces for repainting on a scheduled cycle (typically every 6&ndash;10 years for commercial aircraft). Plastic blast media is the standard method for stripping composite and aluminium-skinned aircraft to base metal without the chemical hazards of methylene chloride strippers or the substrate damage risk of angular mineral abrasives.<\/p>\n    <span class=\"acs\">Melamine 20&ndash;30 mesh &middot; 40&ndash;60 psi &middot; BAC 5748 \/ AIMS 09-00-001<\/span>\n  <\/div>\n  <div class=\"c8-ac\">\n    <span class=\"aci\">&#128664;<\/span>\n    <h4>Automotive Restoration &amp; Refinishing<\/h4>\n    <p>Collector car and classic vehicle restoration requires removal of old paint layers &mdash; sometimes six or more decades of repaints &mdash; without damaging thin body panels that are difficult or impossible to replace. Plastic media at 20&ndash;30 mesh strips paint from steel and aluminium panels without causing the heat distortion that occurs with chemical stripping or the warping risk of aggressive abrasive blasting at high pressure.<\/p>\n    <span class=\"acs\">Urea 20&ndash;30 mesh &middot; 50&ndash;70 psi &middot; Pressure blast cabinet<\/span>\n  <\/div>\n  <div class=\"c8-ac\">\n    <span class=\"aci\">&#9965;&#65039;<\/span>\n    <h4>Military Vehicle &amp; Weapons System Refinishing<\/h4>\n    <p>Military ground vehicles, helicopter airframes, and naval vessel superstructures require periodic repainting as part of scheduled depot-level maintenance. Defence maintenance depots specify plastic blast media for composite and light alloy components under specifications including MIL-P-85891A, which governs plastic media properties for military maintenance applications.<\/p>\n    <span class=\"acs\">Urea\/Melamine 20 mesh &middot; MIL-P-85891A &middot; 50&ndash;75 psi<\/span>\n  <\/div>\n  <div class=\"c8-ac\">\n    <span class=\"aci\">&#127754;<\/span>\n    <h4>Marine Composite Hull Maintenance<\/h4>\n    <p>Racing yachts, patrol vessels, and pleasure craft with GRP or CFRP hulls require paint stripping for antifouling recoat or topcoat repair. Chemical stripping risks osmotic blistering on GRP; grinding risks laminate damage. Plastic blast media at 40&ndash;60 psi strips antifouling, primer, and gelcoat without exposing or damaging the fibre reinforcement.<\/p>\n    <span class=\"acs\">Melamine 30&ndash;40 mesh &middot; 40&ndash;55 psi &middot; Test fibre exposure first<\/span>\n  <\/div>\n  <div class=\"c8-ac\">\n    <span class=\"aci\">&#9881;&#65039;<\/span>\n    <h4>Electronics &amp; Mould Tool Cleaning<\/h4>\n    <p>Injection mould tooling, PCB stencils, and precision electronics housings accumulate residue that must be cleaned without dimensional damage. Fine plastic media (60&ndash;80 mesh) in a suction blast cabinet removes flash, residue, and contamination from mould cavities and precision surfaces without altering cavity dimensions or surface finish of the tool steel.<\/p>\n    <span class=\"acs\">Melamine\/Acrylic 60&ndash;80 mesh &middot; Low pressure cabinet &middot; Suction blast<\/span>\n  <\/div>\n  <div class=\"c8-ac\">\n    <span class=\"aci\">&#128295;<\/span>\n    <h4>Aerospace Structural Component Stripping<\/h4>\n    <p>Wing spars, ribs, fuselage frames, and bulkheads in aluminium alloy or CFRP require recurring paint stripping for inspection under the coating system. Maintaining dimensional integrity of these fatigue-critical structures is paramount &mdash; plastic media is specified precisely because it cannot alter the dimensions or surface condition of the structure within any defined operating envelope.<\/p>\n    <span class=\"acs\">Melamine 30&ndash;40 mesh &middot; 45&ndash;65 psi &middot; AMS 2441 compliant<\/span>\n  <\/div>\n<\/div>\n\n<h2 id=\"c8-pc\">Pros &amp; Cons of Plastic Blast Media<\/h2>\n\n<div class=\"c8-pc\">\n  <div class=\"c8-pros\">\n    <h4>&#10003; Advantages<\/h4>\n    <ul>\n      <li><strong>Zero substrate damage<\/strong> &mdash; the only blast media that strips coatings from composites and thin metals without profiling or abrading the surface<\/li>\n      <li><strong>No iron contamination<\/strong> &mdash; fully safe on stainless steel, aluminium, titanium, magnesium, and all composites<\/li>\n      <li><strong>No anchor profile created<\/strong> &mdash; substrate retains original surface condition post-stripping<\/li>\n      <li><strong>Eliminates chemical strippers<\/strong> &mdash; removes hazardous solvent and methylene chloride processes from the facility<\/li>\n      <li><strong>Three resin grades<\/strong> for tunable aggressiveness matching substrate sensitivity<\/li>\n      <li><strong>OSHA-compliant<\/strong> &mdash; no free crystalline silica<\/li>\n      <li><strong>Aerospace qualified<\/strong> &mdash; MIL-P-85891A, AMS 2441, Boeing BAC 5748, Airbus AIMS 09-00-001<\/li>\n    <\/ul>\n  <\/div>\n  <div class=\"c8-cons\">\n    <h4>&#10007; Limitations<\/h4>\n    <ul>\n      <li><strong>Cannot create anchor profiles<\/strong> &mdash; if a profile is required for a new coating system, additional blasting with a mineral abrasive is needed after plastic media stripping<\/li>\n      <li><strong>Slower stripping than aggressive abrasives<\/strong> &mdash; lower hardness = lower material removal rate vs Al&#8322;O&#8323; or garnet at equivalent pressure<\/li>\n      <li><strong>Pressure-sensitive<\/strong> &mdash; over-pressure on composites causes irreversible fibre exposure damage<\/li>\n      <li><strong>Not effective on hard inorganic coatings<\/strong> &mdash; cannot remove hard anodise, thermal spray, or ceramic coatings<\/li>\n      <li><strong>Lower recyclability (3&ndash;10 cycles)<\/strong> &mdash; higher particle consumption than steel abrasives<\/li>\n      <li><strong>Higher cost per kg<\/strong> than garnet, crushed glass, or mineral abrasives &mdash; justified by substrate protection value in aerospace applications<\/li>\n      <li><strong>Not suitable for wheel blast machines<\/strong> &mdash; pressure blast or suction blast only<\/li>\n    <\/ul>\n  <\/div>\n<\/div>\n\n<h2 id=\"c8-vs\">Plastic Blast Media vs Alternative Stripping Methods<\/h2>\n\n<div class=\"c8-tw\">\n  <table class=\"c8-tbl\">\n    <caption>Comparison of plastic blast media against alternative paint stripping methods for composite and light alloy substrates.<\/caption>\n    <thead><tr><th>Method<\/th><th>Substrate Safety<\/th><th>Vitesse<\/th><th>Regulatory Burden<\/th><th>Best When<\/th><\/tr><\/thead>\n    <tbody>\n      <tr><td class=\"col-hl\">Plastic Blast Media<\/td><td><span class=\"b b-g\">Excellent<\/span><\/td><td><span class=\"b b-y\">Mod\u00e9r\u00e9<\/span><\/td><td><span class=\"b b-g\">Low (no chemical permits)<\/span><\/td><td>Standard choice for composite and light alloy aircraft\/automotive stripping<\/td><\/tr>\n      <tr><td class=\"col-hl\"><a href=\"https:\/\/hlh-js.com\/products\/aluminum-oxide\/\">Aluminum Oxide Blast<\/a><\/td><td><span class=\"b b-r\">Poor on composites<\/span><\/td><td><span class=\"b b-g\">Fast<\/span><\/td><td><span class=\"b b-g\">Faible<\/span><\/td><td>Carbon steel and alloy steel substrates where profile creation is also needed<\/td><\/tr>\n      <tr><td class=\"col-hl\">Methylene Chloride Chemical Strip<\/td><td><span class=\"b b-g\">Bon<\/span><\/td><td><span class=\"b b-g\">Fast (soak)<\/span><\/td><td><span class=\"b b-r\">Very high (EPA HAP, REACH, worker health)<\/span><\/td><td>Largely being replaced by plastic blast in most regulated jurisdictions<\/td><\/tr>\n      <tr><td class=\"col-hl\">NMP \/ DBE Chemical Strip<\/td><td><span class=\"b b-g\">Bon<\/span><\/td><td><span class=\"b b-y\">Slow (long soak)<\/span><\/td><td><span class=\"b b-y\">Moderate (less toxic than MeCl&#8322;)<\/span><\/td><td>Where blast access is not possible; very complex geometries<\/td><\/tr>\n      <tr><td class=\"col-hl\">Laser Ablation<\/td><td><span class=\"b b-g\">Excellent<\/span><\/td><td><span class=\"b b-r\">Very slow &amp; expensive<\/span><\/td><td><span class=\"b b-g\">Faible<\/span><\/td><td>High-value, precision components where cost per part justifies capital investment<\/td><\/tr>\n      <tr><td class=\"col-hl\">Wheat Starch \/ Corn Cob<\/td><td><span class=\"b b-g\">Very good<\/span><\/td><td><span class=\"b b-r\">Slow<\/span><\/td><td><span class=\"b b-g\">Faible<\/span><\/td><td>Budget alternative for simple light-coat stripping on non-critical components<\/td><\/tr>\n    <\/tbody>\n  <\/table>\n<\/div>\n\n<h2 id=\"c8-recycle\">Recyclability &amp; Waste Management<\/h2>\n\n<p>Plastic blast media recyclability depends heavily on resin type (acrylic lasts longest; urea wears fastest), blast pressure (higher pressure increases particle fragmentation rate), and substrate hardness (harder substrates cause more media fracture). With a reclaim system incorporating screening and air classification, typical working life is 3&ndash;5 cycles for urea, 5&ndash;8 for melamine, and 7&ndash;10 for acrylic grade.<\/p>\n\n<h3>Spent Media Waste Classification<\/h3>\n<p>Spent plastic blast media from paint stripping operations is classified as a <strong>mixed waste<\/strong> comprising the plastic resin fragments plus the stripped paint particles. If the stripped paint contains <strong>lead-based compounds or hexavalent chromium primer<\/strong> (common on aircraft and military vehicles manufactured before 1980), the spent media must be characterised by TCLP testing and may require disposal as hazardous waste regardless of media type. This is not a property of the plastic media itself &mdash; it is a property of the stripped coating.<\/p>\n\n<div class=\"c8-co co-info\">\n  <span class=\"c8-co-icon\">&#8505;&#65039;<\/span>\n  <div class=\"c8-co-body\">\n    <strong>Plastic media from clean (non-leaded) aircraft stripping<\/strong>\n    <p>Spent plastic blast media from modern aircraft coating systems (post-1990 chromate-free primer and polyurethane topcoat) typically passes TCLP testing and is classified as non-hazardous solid waste. However, many MRO facilities treat all aircraft paint stripping waste as potentially hazardous as a precaution and for simplicity of waste stream management. Confirm with your environmental compliance officer before changing waste classification.<\/p>\n  <\/div>\n<\/div>\n\n<h2 id=\"c8-safety\">Safety &amp; Regulatory Compliance<\/h2>\n\n<h3>OSHA Crystalline Silica Compliance<\/h3>\n<p>Plastic blast media contains no silica in any form &mdash; the resin particles are entirely organic polymer. There is no crystalline silica exposure risk from the media itself. The primary respiratory hazard during plastic blasting is <strong>airborne paint dust<\/strong> from the stripped coating &mdash; which may contain regulated substances including lead, isocyanates (from polyurethane topcoats), chromates (from epoxy primers), or other coating-specific hazards depending on the age and specification of the painted component.<\/p>\n\n<h3>Lead Paint Hazard<\/h3>\n<p>Aircraft and military vehicles painted before approximately 1980 may have lead-based chromate primer still present beneath subsequent repaints. Blasting operations that disturb lead-containing coatings trigger OSHA&rsquo;s Lead Standard (29 CFR 1926.62 for construction \/ 1910.1025 for general industry), requiring air monitoring, supplied-air respiratory protection, medical surveillance, and worker hygiene controls regardless of the blast media used. Always perform a paint chip analysis or XRF scan for lead before blasting any historic aircraft or vehicle.<\/p>\n\n<h3>Required PPE<\/h3>\n<ul>\n  <li><strong>Supplied-air respirator (NIOSH Type CE):<\/strong> Required for all open blasting; essential for any lead or chromate paint stripping.<\/li>\n  <li><strong>Full blast suit with hood:<\/strong> Plastic particles at blast velocity cause laceration of exposed skin.<\/li>\n  <li><strong>Eye and face protection:<\/strong> Full blast helmet or face shield.<\/li>\n  <li><strong>Hearing protection:<\/strong> Required when blast noise exceeds 85 dB(A) at operator position.<\/li>\n<\/ul>\n\n<p>For full safety guidance including ventilation, contained blast area design, and waste handling for lead-containing coatings, see our <a href=\"https:\/\/hlh-js.com\/resource\/blog\/abrasive-media-safety-guide-osha-standards-ppe-requirements\/\">Abrasive Media Safety Guide: OSHA Standards &amp; PPE Requirements<\/a>.<\/p>\n\n<h2 id=\"c8-order\">Ordering Plastic Blast Media from Jiangsu Henglihong Technology<\/h2>\n\n<div class=\"c8-prod\">\n  <div class=\"c8-prod-hdr\">&#9748; Henglihong Plastic Blast Media &mdash; Product &amp; Ordering Information<\/div>\n  <div class=\"c8-prod-body\">\n    <div class=\"c8-prod-grid\">\n      <div class=\"c8-pi\"><div class=\"c8-pi-lbl\">Available Grades<\/div><div class=\"c8-pi-val\">Urea Formaldehyde &middot; Melamine Formaldehyde &middot; Acrylic (PMMA)<\/div><\/div>\n      <div class=\"c8-pi\"><div class=\"c8-pi-lbl\">Grit Range<\/div><div class=\"c8-pi-val\">12, 16, 20, 30, 40, 60, 80 (US grit)<\/div><\/div>\n      <div class=\"c8-pi\"><div class=\"c8-pi-lbl\">Packaging<\/div><div class=\"c8-pi-val\">25 kg bags &middot; 50 kg bags &middot; 1-ton super sacks<\/div><\/div>\n      <div class=\"c8-pi\"><div class=\"c8-pi-lbl\">MOQ<\/div><div class=\"c8-pi-val\">250 kg &middot; FCL pricing available for bulk orders<\/div><\/div>\n      <div class=\"c8-pi\"><div class=\"c8-pi-lbl\">Documentation<\/div><div class=\"c8-pi-val\">COA &middot; SDS &middot; MIL-P-85891A compliance letter &middot; Hardness cert<\/div><\/div>\n      <div class=\"c8-pi\"><div class=\"c8-pi-lbl\">Lead Time<\/div><div class=\"c8-pi-val\">Standard grades &amp; sizes: 5&ndash;10 days<\/div><\/div>\n      <div class=\"c8-pi\"><div class=\"c8-pi-lbl\">Certifications<\/div><div class=\"c8-pi-val\">ISO 9001 &middot; MIL-P-85891A &middot; AMS 2441<\/div><\/div>\n      <div class=\"c8-pi\"><div class=\"c8-pi-lbl\">Shipping<\/div><div class=\"c8-pi-val\">Ex-Works Jiangsu &middot; FOB Shanghai &middot; CIF worldwide<\/div><\/div>\n    <\/div>\n    <p style=\"font-size:.9rem;margin:0 0 12px\">Henglihong plastic blast media is produced to MIL-P-85891A and AMS 2441 specifications with batch hardness testing and particle size distribution certification included in every shipment. Our melamine grade is the most commonly specified product for commercial aviation MRO paint stripping applications; urea grade covers the broader automotive and general maintenance market.<\/p>\n    <p style=\"font-size:.9rem;margin:0\">For first-time plastic blast media users, our technical team can provide guidance on grit size selection, blast pressure recommendations, and reclaim system configuration for your specific substrate and coating system combination. Contact us with your substrate material, coating system type, and production cycle requirements for a personalised recommendation.<\/p>\n  <\/div>\n<\/div>\n\n<h2 id=\"c8-faq\">Questions fr\u00e9quemment pos\u00e9es<\/h2>\n\n<div class=\"c8-faq\">\n  <details>\n    <summary>What is plastic blast media used for?<\/summary>\n    <div class=\"fb\"><p>Plastic blast media is used to strip paint and coatings from sensitive substrates &mdash; primarily carbon-fibre composites, glass-fibre composites, aluminium alloy, magnesium alloy, and titanium &mdash; without abrading, profiling, or dimensionally altering the substrate surface. Primary industries include commercial and military aircraft MRO, automotive restoration, military vehicle and weapons system maintenance, marine composite hull maintenance, and precision mould and tool cleaning.<\/p><\/div>\n  <\/details>\n  <details>\n    <summary>What is the difference between urea, melamine, and acrylic plastic blast media?<\/summary>\n    <div class=\"fb\"><p>The three resin types differ in hardness, density, aggressiveness, and recyclability. Urea formaldehyde (Mohs 3.5&ndash;4.0) is the hardest and most aggressive &mdash; fastest stripping, lowest media life, best for structural aluminium and GFRP. Melamine formaldehyde (Mohs 3.0&ndash;3.5) offers balanced performance and is the most commonly specified grade for commercial aircraft MRO and CFRP stripping. Acrylic \/ PMMA (Mohs ~3.0) is the softest and gentlest &mdash; longest media life, appropriate for magnesium alloys and very thin or sensitive laminates.<\/p><\/div>\n  <\/details>\n  <details>\n    <summary>Will plastic blast media damage carbon fibre composites?<\/summary>\n    <div class=\"fb\"><p>When used correctly &mdash; correct grit size (30&ndash;40 mesh), correct resin grade (melamine or acrylic), and correct pressure (30&ndash;55 psi) &mdash; plastic blast media does not damage CFRP. The risk of damage arises from excessive blast pressure, too coarse a grit size, or using the wrong resin type. Carbon fibre exposure results from removing too much of the surface resin layer and is the primary failure mode. Always test on a scrap panel representative of the production component at the proposed parameters before committing to production blasting of CFRP structure.<\/p><\/div>\n  <\/details>\n  <details>\n    <summary>Can plastic blast media be used in a standard blast cabinet?<\/summary>\n    <div class=\"fb\"><p>Yes &mdash; plastic blast media is compatible with standard pressure blast pots and suction blast cabinets. It is not compatible with wheel blast machines (impeller damage risk). For cabinet applications, ensure your dust collector is rated for the media volume and particle size, that the cabinet has a media reclaim classifier suitable for plastic particles (which are significantly lighter than mineral media), and that your nozzle diameter is appropriate for the grit size selected (minimum 3&times; particle diameter rule applies).<\/p><\/div>\n  <\/details>\n  <details>\n    <summary>Does plastic blast media leave residue on the stripped surface?<\/summary>\n    <div class=\"fb\"><p>Plastic blast media can leave fine resin dust on the stripped surface if reclaim and air wash are not effective. This residue must be removed before recoating &mdash; typically by compressed air blow-off followed by solvent wipe in accordance with the coating manufacturer&rsquo;s surface preparation requirements. Most aerospace coating specifications (Boeing, Airbus, MIL-SPEC) require a post-blast surface inspection and cleaning step regardless of media type before primer application.<\/p><\/div>\n  <\/details>\n  <details>\n    <summary>What aerospace specifications cover plastic blast media?<\/summary>\n    <div class=\"fb\"><p>The principal specifications governing plastic blast media for aerospace applications are: MIL-P-85891A (US military, general plastic blast media properties); AMS 2441 (SAE Aerospace, plastic media blasting of aircraft surfaces); Boeing BAC 5748 (Boeing process specification for plastic media blast stripping); and Airbus AIMS 09-00-001 (Airbus process specification for aircraft paint stripping). When ordering for an aerospace MRO application, specify which process specification applies &mdash; our certification documentation confirms compliance with each.<\/p><\/div>\n  <\/details>\n<\/div>\n\n<div class=\"c8-cta\">\n  <h2>Ready to Order Plastic Blast Media?<\/h2>\n  <p>Urea, melamine, and acrylic grades in all commercial grit sizes &mdash; MIL-P-85891A and AMS 2441 certified. Technical support on grit selection and operating parameters included for all new accounts.<\/p>\n  <a class=\"c8-btn\" href=\"https:\/\/hlh-js.com\/contact\/\">Request a Quote<\/a>\n  <a class=\"c8-btn out\" href=\"https:\/\/hlh-js.com\/products\/\">View All Abrasive Media Products &rarr;<\/a>\n<\/div>\n\n\n<\/article>","protected":false},"excerpt":{"rendered":"<p>Plastic Blast Media: Gentle Stripping Without Substrate Damage The complete  [&#8230;]<\/p>","protected":false},"author":1,"featured_media":12466,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[62,175,138],"tags":[],"class_list":["post-12440","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-industry","category-resource"],"_links":{"self":[{"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/posts\/12440","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=12440"}],"version-history":[{"count":4,"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/posts\/12440\/revisions"}],"predecessor-version":[{"id":12506,"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/posts\/12440\/revisions\/12506"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/media\/12466"}],"wp:attachment":[{"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/media?parent=12440"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/categories?post=12440"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hlh-js.com\/fr\/wp-json\/wp\/v2\/tags?post=12440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}