{"id":13073,"date":"2026-05-11T02:27:01","date_gmt":"2026-05-11T02:27:01","guid":{"rendered":"https:\/\/hlh-js.com\/?p=13073"},"modified":"2026-05-11T02:27:01","modified_gmt":"2026-05-11T02:27:01","slug":"best-sandblasting-media-for-rust-removal-steel-shipyards-heavy-equipment","status":"publish","type":"post","link":"https:\/\/hlh-js.com\/es\/resource\/blog\/best-sandblasting-media-for-rust-removal-steel-shipyards-heavy-equipment\/","title":{"rendered":"Best Sandblasting Media for Rust Removal: Steel, Shipyards &amp; Heavy Equipment"},"content":{"rendered":"<!-- ============ D2: Best Blast Media for Rust Removal ============ -->\n<style>\n.hlh-d2*{box-sizing:border-box;margin:0;padding:0}\n.hlh-d2{font-family:'Segoe UI',Arial,sans-serif;font-size:16px;line-height:1.75;color:#2D2D2D;max-width:900px;margin:0 auto;padding:0 16px}\n.hlh-d2-hero{background:linear-gradient(135deg,#1B4F8A 0%,#0d3260 100%);color:#fff;border-radius:10px;padding:48px 40px 44px;margin-bottom:36px;position:relative;overflow:hidden}\n.hlh-d2-hero::before{content:'';position:absolute;right:-50px;top:-50px;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.06)}\n.hlh-d2-hero-label{display:inline-block;background:rgba(255,255,255,.18);color:#d6e8ff;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;padding:4px 12px;border-radius:20px;margin-bottom:16px}\n.hlh-d2-hero h1{font-size:clamp(24px,3.5vw,34px);font-weight:700;line-height:1.28;margin-bottom:14px;color:#fff}\n.hlh-d2-hero-meta{font-size:13px;color:#a8c8f0;display:flex;flex-wrap:wrap;gap:16px}\n.hlh-d2-toc{background:#f0f5fb;border-left:4px solid #1B4F8A;border-radius:0 8px 8px 0;padding:22px 26px;margin-bottom:36px}\n.hlh-d2-toc-title{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:#1B4F8A;margin-bottom:12px}\n.hlh-d2-toc ol{padding-left:18px}\n.hlh-d2-toc li{margin-bottom:5px}\n.hlh-d2-toc a{color:#1B4F8A;text-decoration:none;font-size:14px;font-weight:500}\n.hlh-d2-toc a:hover{text-decoration:underline}\n.hlh-d2 h2{font-size:clamp(19px,2.8vw,25px);font-weight:700;color:#1B4F8A;margin:48px 0 14px;padding-bottom:9px;border-bottom:2px solid #d6e8ff}\n.hlh-d2 h3{font-size:17px;font-weight:700;color:#2D2D2D;margin:28px 0 10px}\n.hlh-d2 p{margin-bottom:14px}\n.hlh-d2 a{color:#1B4F8A;text-decoration:underline;text-underline-offset:3px}\n.hlh-d2 a:hover{color:#0d3260}\n.hlh-d2 strong{font-weight:700;color:#1a1a1a}\n.hlh-d2 ul,.hlh-d2 ol{padding-left:22px;margin-bottom:14px}\n.hlh-d2 li{margin-bottom:6px}\n.hlh-d2-callout{background:#f0f5fb;border-left:4px solid #1B4F8A;border-radius:0 8px 8px 0;padding:16px 20px;margin:22px 0;font-size:15px}\n.hlh-d2-callout-tip{background:#f0fbf4;border-left-color:#1a8a4a}\n.hlh-d2-callout strong{display:block;margin-bottom:3px;font-size:12px;text-transform:uppercase;letter-spacing:.06em}\n.hlh-d2-table-wrap{overflow-x:auto;margin:20px 0}\n.hlh-d2-table{width:100%;border-collapse:collapse;font-size:14px}\n.hlh-d2-table thead tr{background:#1B4F8A;color:#fff}\n.hlh-d2-table thead th{padding:10px 13px;text-align:left;font-weight:600}\n.hlh-d2-table tbody tr:nth-child(odd){background:#f7fafd}\n.hlh-d2-table tbody tr:nth-child(even){background:#fff}\n.hlh-d2-table tbody td{padding:9px 13px;border-bottom:1px solid #dde8f2;vertical-align:top}\n.hlh-d2-faq-item{border:1px solid #d6e0ec;border-radius:8px;margin-bottom:10px;overflow:hidden}\n.hlh-d2-faq-q{background:#f0f5fb;padding:13px 17px;font-weight:700;font-size:15px;color:#1B4F8A}\n.hlh-d2-faq-a{padding:13px 17px;font-size:14.5px;line-height:1.7;border-top:1px solid #d6e0ec;background:#fff}\n.hlh-d2-cta{background:linear-gradient(135deg,#1B4F8A 0%,#0d3260 100%);color:#fff;border-radius:10px;padding:44px 36px;margin-top:52px;text-align:center}\n.hlh-d2-cta h2{color:#fff;border:none;font-size:clamp(18px,2.8vw,25px);margin:0 0 12px}\n.hlh-d2-cta p{color:#c8dff5;font-size:14px;max-width:520px;margin:0 auto 24px}\n.hlh-d2-cta-btn{display:inline-block;background:#fff;color:#1B4F8A;font-size:15px;font-weight:700;padding:13px 32px;border-radius:6px;text-decoration:none}\n.hlh-d2-cta-btn:hover{background:#e8f0fa}\n.hlh-d2-breadcrumb{font-size:13px;color:#666;margin-bottom:20px}\n.hlh-d2-breadcrumb a{color:#1B4F8A;text-decoration:none}\n.hlh-d2-breadcrumb a:hover{text-decoration:underline}\n@media(max-width:600px){.hlh-d2-hero{padding:32px 20px 28px}.hlh-d2-cta{padding:32px 20px}}\n<\/style>\n\n<article class=\"hlh-d2\" itemscope itemtype=\"https:\/\/schema.org\/Article\">\n<div class=\"hlh-d2-breadcrumb\"><a href=\"https:\/\/hlh-js.com\/resource\/blog\/sandblasting-media-suppliers-the-industrial-buyers-complete-guide\/\" target=\"_blank\" rel=\"noopener\">\u2190 Back to: Sandblasting Media Suppliers Complete Guide<\/a><\/div>\n\n<header class=\"hlh-d2-hero\">\n  <span class=\"hlh-d2-hero-label\">Application Guide \u00b7 May 2026<\/span>\n  <h1 itemprop=\"headline\">Best Sandblasting Media for Rust Removal: Steel, Shipyards &amp; Heavy Equipment<\/h1>\n  <div class=\"hlh-d2-hero-meta\"><span>Updated: May 2026<\/span><span>~2,400 words \u00b7 9-min read<\/span><span>Jiangsu Henglihong Technology Co., Ltd.<\/span><\/div>\n<\/header>\n\n<nav class=\"hlh-d2-toc\" aria-label=\"Table of Contents\">\n  <div class=\"hlh-d2-toc-title\">Table of Contents<\/div>\n  <ol>\n    <li><a href=\"#d2-science\">The Science of Rust Removal by Blasting<\/a><\/li>\n    <li><a href=\"#d2-grades\">Rust Grade Classification (ISO 8501-1)<\/a><\/li>\n    <li><a href=\"#d2-media\">Best Media by Rust Severity<\/a><\/li>\n    <li><a href=\"#d2-structural\">Structural Steel &amp; Fabrication Shops<\/a><\/li>\n    <li><a href=\"#d2-shipyard\">Shipyard Hull Blasting<\/a><\/li>\n    <li><a href=\"#d2-heavy\">Heavy Equipment &amp; Mining Machinery<\/a><\/li>\n    <li><a href=\"#d2-pipeline\">Pipeline Rust Removal<\/a><\/li>\n    <li><a href=\"#d2-faq\">PREGUNTAS FRECUENTES<\/a><\/li>\n  <\/ol>\n<\/nav>\n\n<section itemprop=\"articleBody\">\n\n<p>Rust removal is the single most common application for industrial abrasive blasting \u2014 and it is also one where media selection has the most significant impact on productivity and outcome quality. The right abrasive removes rust and scale efficiently, achieves the specified cleanliness level, and creates the anchor profile the subsequent coating system needs. The wrong choice either underperforms (requiring multiple passes, missing cleanliness targets) or damages the substrate (excessive material removal, warping of thin plate).<\/p>\n\n<p>This guide covers the best blast media choices for rust removal across the most demanding industrial environments: structural steel fabrication, shipyard hull work, heavy equipment maintenance, and pipeline preparation. It is part of the complete resource at <a href=\"https:\/\/hlh-js.com\/resource\/blog\/sandblasting-media-suppliers-the-industrial-buyers-complete-guide\/\" target=\"_blank\" rel=\"noopener\">Sandblasting Media Suppliers: The Industrial Buyer&#8217;s Complete Guide<\/a> from Jiangsu Henglihong Technology Co., Ltd.<\/p>\n\n<h2 id=\"d2-science\">1. The Science of Rust Removal by Blasting<\/h2>\n\n<p>Rust (iron oxide, primarily Fe\u2082O\u2083 and Fe\u2083O\u2084) and mill scale (a thin, dense layer of iron oxide formed during steel manufacturing) are mechanically removed by abrasive blasting through two simultaneous mechanisms: <strong>impact fracture<\/strong> (the abrasive particle impacts the brittle rust or scale layer, shattering it) and <strong>abrasive cutting<\/strong> (angular particle edges shear through the rust-metal interface, undercutting and dislodging the corrosion layer).<\/p>\n\n<p>Angular abrasives \u2014 steel grit, aluminum oxide, garnet \u2014 excel at both mechanisms because their sharp edges deliver concentrated stress at the rust-metal interface. Rounded abrasives (steel shot, glass beads) are less effective at rust removal because they transfer energy as compressive force rather than concentrated cutting stress, and cannot effectively undercut or shear through rust layers.<\/p>\n\n<h2 id=\"d2-grades\">2. Rust Grade Classification (ISO 8501-1)<\/h2>\n\n<p>ISO 8501-1 defines four rust grades (A, B, C, D) for the initial condition of steel before surface preparation:<\/p>\n\n<div class=\"hlh-d2-table-wrap\">\n<table class=\"hlh-d2-table\">\n  <thead><tr><th>Rust Grade<\/th><th>Descripci\u00f3n<\/th><th>Recommended Media<\/th><\/tr><\/thead>\n  <tbody>\n    <tr><td>Grade A<\/td><td>Steel largely covered with intact mill scale; little or no rust<\/td><td>Steel grit G25 (medium) \u2014 mill scale is very hard, requires aggressive angular abrasive<\/td><\/tr>\n    <tr><td>Grade B<\/td><td>Beginning to rust; mill scale beginning to flake<\/td><td>Steel grit G25\u2013G40; garnet 20\/40 for field work<\/td><\/tr>\n    <tr><td>Grade C<\/td><td>Rust widespread; mill scale rusted away; slight pitting<\/td><td>Steel grit G25; garnet 30\/60; Al\u2082O\u2083 #36<\/td><\/tr>\n    <tr><td>Grade D<\/td><td>Rust pervasive; pitting visible to naked eye<\/td><td>Steel grit G16\u2013G25 (coarser to reach into pits); Al\u2082O\u2083 #24\u2013#36<\/td><\/tr>\n  <\/tbody>\n<\/table>\n<\/div>\n\n<div class=\"hlh-d2-callout\">\n  <strong>\ud83d\udccc Mill scale is the hardest challenge<\/strong>\n  Intact mill scale (Grade A steel) is actually harder than rust and more tightly adhered to the steel surface. Removing mill scale requires an angular abrasive with sufficient mass and hardness to fracture the scale layer. Steel grit G25 at medium or high hardness (HRC 47\u201365) is the most effective and economical choice. Garnet 30\/60 can remove mill scale but requires more passes and higher blast pressure than steel grit.\n<\/div>\n\n<h2 id=\"d2-media\">3. Best Media by Rust Severity<\/h2>\n\n<div class=\"hlh-d2-table-wrap\">\n<table class=\"hlh-d2-table\">\n  <thead><tr><th>Rust Severity<\/th><th>#1 Recommendation<\/th><th>#2 Alternative<\/th><th>Avoid<\/th><\/tr><\/thead>\n  <tbody>\n    <tr><td>Light surface rust (Grade B), enclosed room<\/td><td>Steel grit G40, Medium HRC<\/td><td>Garnet 30\/60<\/td><td>Glass beads, soft media<\/td><\/tr>\n    <tr><td>Moderate rust (Grade C), enclosed room<\/td><td>Steel grit G25, Medium HRC<\/td><td>Al\u2082O\u2083 BFA #36<\/td><td>Single-use slag (poor recyclability)<\/td><\/tr>\n    <tr><td>Heavy rust + pitting (Grade D), enclosed room<\/td><td>Steel grit G16\u2013G25, High HRC<\/td><td>Al\u2082O\u2083 BFA #24\u2013#36<\/td><td>Garnet (insufficient for deep pits)<\/td><\/tr>\n    <tr><td>Any rust grade, open-air field blast<\/td><td>Garnet 30\/60 (low dust)<\/td><td>Copper slag, medium grade<\/td><td>Silica sand (prohibited)<\/td><\/tr>\n    <tr><td>Stainless steel rust\/scale<\/td><td>White Al\u2082O\u2083 (WFA) #46\u2013#60<\/td><td>Garnet 30\/60<\/td><td>Steel grit (iron contamination)<\/td><\/tr>\n  <\/tbody>\n<\/table>\n<\/div>\n\n<h2 id=\"d2-structural\">4. Structural Steel &amp; Fabrication Shops<\/h2>\n\n<p>Steel fabrication shops preparing structural sections (beams, columns, plate girders, pipe) for protective coating are among the highest-volume consumers of blast media globally. The combination of high production throughput demands and the need for consistent Sa 2.5 achievement drives a strong preference for recyclable steel grit in automated blast rooms.<\/p>\n\n<p>The standard configuration is a centrifugal wheel blast machine with multiple blast wheels running G25 or G40 steel grit at medium hardness. This setup achieves Sa 2.5 with 50\u201380 \u00b5m anchor profile on Grade A\u2013D steel in a single pass at throughput rates of 10\u201350 m\u00b2\/hour depending on machine size and steel configuration. The key productivity advantage of steel grit over all mineral abrasives in this application is its density: at 7.4 g\/cm\u00b3, steel grit delivers far more kinetic energy per particle than garnet (3.9 g\/cm\u00b3) or aluminum oxide (4.0 g\/cm\u00b3), enabling faster rust and scale removal per unit area.<\/p>\n\n<p>For sourcing details on steel grit grades optimized for fabrication shop use, see: <a href=\"https:\/\/hlh-js.com\/resource\/blog\/steel-grit-steel-shot-suppliers-specs-grades-bulk-pricing\/\" target=\"_blank\" rel=\"noopener\">Steel Grit &amp; Steel Shot Suppliers: Specs, Grades &amp; Bulk Pricing<\/a>.<\/p>\n\n<h2 id=\"d2-shipyard\">5. Shipyard Hull Blasting<\/h2>\n\n<p>Ship hull blasting \u2014 the preparation of vessel hull plating and superstructure for anti-corrosion coating systems \u2014 operates under some of the most demanding production constraints in the industry. Dry-dock windows are expensive; delays in hull preparation directly delay vessel departure and generate significant daily costs for ship owners.<\/p>\n\n<p>Standard practice in modern shipyard blast halls uses G16 or G18 steel grit at medium-high hardness, running in high-capacity centrifugal wheel blast machines. The larger particle size of G16 (nominal 1.4 mm) delivers maximum kinetic energy per particle, enabling rapid removal of the heavy rust, scale, and old coating layers typically encountered on vessels entering dry-dock. Profile depths of 60\u2013100 \u00b5m are achieved, compatible with most class-approved epoxy\/antifouling coating systems.<\/p>\n\n<p>Field touch-up blasting \u2014 used on block joints, areas inaccessible to the blast hall machine, and touch-up of damage \u2014 uses garnet 30\/60 or 20\/40 in pressure blast equipment. Garnet is preferred over slag for shipyard touch-up because it generates less dust in the confined dry-dock environment, has cleaner chemistry that is less likely to contaminate epoxy bonding surfaces, and can be used closer to the waterline without the environmental concerns associated with slag abrasive overspray.<\/p>\n\n<h2 id=\"d2-heavy\">6. Heavy Equipment &amp; Mining Machinery<\/h2>\n\n<p>Rust removal from heavy off-road equipment \u2014 excavators, haul trucks, loaders, draglines \u2014 presents unique challenges: the equipment is large (blasting occurs in the field or in large maintenance bays), rust conditions are often Grade C\u2013D on heavily corroded buckets and ground-engaging components, and coating systems are typically heavy-duty (polyurethane topcoats, urethane liners) requiring Sa 2.5 with 50\u201380 \u00b5m profiles.<\/p>\n\n<p>For shop-based maintenance (blast bay with media recovery): steel grit G25\u2013G40 at medium hardness is the standard. For field maintenance without recovery capability: garnet 30\/60 or copper slag (medium grade) in pressure blast equipment. For very heavily corroded components where field blasting cannot achieve Sa 2.5 efficiently: power tool cleaning (SSPC-SP 11 or SP 15) as a preparation step before blast finishing.<\/p>\n\n<h2 id=\"d2-pipeline\">7. Pipeline Rust Removal<\/h2>\n\n<p>New pipeline steel is typically Grade A or B (light mill scale and surface rust). Field blasting before FBE, 3LPE, or liquid epoxy coating requires Sa 2.5 with 40\u201370 \u00b5m profile. Garnet 30\/60 or 36\/60 is the dominant media choice for field pipeline blasting globally, driven by its low dust profile (worker safety on open jobsites), clean chemistry (no iron contamination on pipe surfaces where coating adhesion is critical), and explicit name specification in many pipeline owner coating documents.<\/p>\n\n<p>Production-line pipe mills (blasting in automated facilities before factory-applied coating) use steel grit G25 or G40 in automatic blast machines, benefiting from the recyclability economics that make steel grit unbeatable in enclosed, high-volume operations. For the full comparison of media options for this application, see: <a href=\"https:\/\/hlh-js.com\/resource\/blog\/steel-grit-vs-aluminum-oxide-vs-garnet-which-blast-media-is-right-for-you\/\" target=\"_blank\" rel=\"noopener\">Steel Grit vs. Aluminum Oxide vs. Garnet Comparison<\/a>.<\/p>\n\n<h2 id=\"d2-faq\">8. Frequently Asked Questions<\/h2>\n\n<div class=\"hlh-d2-faq-item\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n  <div class=\"hlh-d2-faq-q\" itemprop=\"name\">What is the fastest blast media for heavy rust removal?<\/div>\n  <div class=\"hlh-d2-faq-a\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"><div itemprop=\"text\">For speed of rust and scale removal in an enclosed blast room, high-hardness steel grit (G16 or G25, HRC 56\u201365) delivers the highest productivity per unit time. Its combination of density (7.4 g\/cm\u00b3 \u2014 nearly twice that of garnet or aluminum oxide), angular geometry, and high hardness delivers maximum cutting power per blast wheel revolution. In open-air pressure blasting, garnet 20\/40 at high blast pressure (95\u2013110 psi) is the fastest option that maintains OSHA compliance and low dust.<\/div><\/div>\n<\/div>\n\n<div class=\"hlh-d2-faq-item\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n  <div class=\"hlh-d2-faq-q\" itemprop=\"name\">Can I achieve Sa 2.5 on heavily pitted steel?<\/div>\n  <div class=\"hlh-d2-faq-a\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"><div itemprop=\"text\">Yes, but it is more challenging. Deep pits trap rust residues that resist blast cleaning because the abrasive stream cannot reach the bottom of narrow pits at the required angle and velocity. On heavily pitted steel (Grade D), use a coarser abrasive (G16 or G18 for steel grit; #24 for aluminum oxide) to maximize impact energy, and increase blast time per unit area. ISO 8501-1 acknowledges that residual rust in pits is acceptable as long as the overall surface meets the Sa 2.5 visual specification (no more than 5% staining). For immersion service, consider the additional standard of SSPC-SP 12 (WJ-2 wet abrasive blasting) which can penetrate pits more effectively than dry blasting.<\/div><\/div>\n<\/div>\n\n<\/section>\n\n<div class=\"hlh-d2-cta\">\n  <h2>Source the Right Media for Your Rust Removal Project<\/h2>\n  <p>Contact Jiangsu Henglihong Technology Co., Ltd. with your rust grade, substrate, and production volume. Our team will specify the optimal abrasive grade and provide a competitive FOB quotation.<\/p>\n  <a class=\"hlh-d2-cta-btn\" href=\"https:\/\/hlh-js.com\/contact\/\" target=\"_blank\" rel=\"noopener\">Obtener un presupuesto \u2192<\/a>\n<\/div>\n\n<script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"Article\",\n    \"headline\": \"Best Sandblasting Media for Rust Removal: Steel, Shipyards & Heavy Equipment\",\n    \"datePublished\": \"2026-05-01\",\n    \"dateModified\": \"2026-05-01\",\n    \"author\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Jiangsu Henglihong Technology Co., Ltd.\",\n        \"url\": \"https:\\\/\\\/hlh-js.com\"\n    },\n    \"publisher\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Jiangsu Henglihong Technology Co., Ltd.\",\n        \"url\": \"https:\\\/\\\/hlh-js.com\"\n    },\n    \"mainEntityOfPage\": {\n        \"@type\": \"WebPage\",\n        \"@id\": \"https:\\\/\\\/hlh-js.com\\\/resource\\\/blog\\\/best-sandblasting-media-for-rust-removal-steel-shipyards-heavy-equipment\\\/\"\n    }\n}<\/script>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>\u2190 Back to: Sandblasting Media Suppliers Complete Guide Application Guide  [&#8230;]<\/p>","protected":false},"author":1,"featured_media":13075,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[62,177,138],"tags":[],"class_list":["post-13073","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-material","category-resource"],"_links":{"self":[{"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/posts\/13073","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/comments?post=13073"}],"version-history":[{"count":2,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/posts\/13073\/revisions"}],"predecessor-version":[{"id":13076,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/posts\/13073\/revisions\/13076"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/media\/13075"}],"wp:attachment":[{"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/media?parent=13073"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/categories?post=13073"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/tags?post=13073"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}