{"product_id":"permatex-rust-treatment-converter-16-oz-1-step-rust-to-polymer-paintable-primer","title":"Permatex Rust Treatment converter 16 oz — 1‑step rust-to‑polymer, paintable primer","description":"\u003cstrong\u003ePermatex 81773 Rust Treatment is a one-step liquid converter that transforms active rust into a durable black polymer coating you can paint over.\u003c\/strong\u003e\n\n\u003cp\u003eThis concentrated 16 oz formula is designed to stop corrosion on a wide range of metal surfaces by chemically converting flaky rust into a stable, adherent coating. Applied by brush or spray, it reacts within minutes to replace loose iron oxide with a tough black polymer that protects the substrate and acts as a paintable primer. It’s formulated for use with body filler and fiberglass and performs best between 50°F and 90°F (10°C–32°C), on surfaces not exceeding 200°F (93°C).\u003c\/p\u003e\n\n\u003ch3\u003eHow does Permatex 81773 stop rust so quickly?\u003c\/h3\u003e\n\u003cp\u003eThe product contains active chemistry that reacts with iron oxide to form a new, bonded polymer layer instead of simply masking rust. This conversion process eliminates flaky rust and creates a cohesive surface that seals the metal from further oxygen and moisture exposure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReacts with rust to create a black polymer coating in minutes\u003c\/li\u003e\n  \u003cli\u003eDisplaces loose scale so metal is stabilized for painting\u003c\/li\u003e\n  \u003cli\u003eNo sanding to bare metal required for many applications\u003c\/li\u003e\n  \u003cli\u003eWorks on automotive, agricultural, marine topsides and industrial parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat surfaces and temperatures are appropriate for use?\u003c\/h3\u003e\n\u003cp\u003ePermatex 81773 is suitable for steel and ferrous metal parts across many environments, including trucks, trailers, tanks, fences, and farm equipment. Avoid applying to automotive exterior sheet metal repairs; the product is intended for structural, mechanical, and non-visible sheet metal applications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRecommended service temperature range: 50°F–90°F (10°C–32°C)\u003c\/li\u003e\n  \u003cli\u003eDo not apply to surfaces hotter than 200°F (93°C)\u003c\/li\u003e\n  \u003cli\u003eApproved for pipes, valves, decks, hatch covers (topcoat with marine paint)\u003c\/li\u003e\n  \u003cli\u003eNot recommended for exterior body panel finish work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I paint or use body filler over the treated area?\u003c\/h3\u003e\n\u003cp\u003eYes—once the rust converts and the black polymer film forms, the surface accepts most primers and paints and is compatible with body filler and fiberglass repairs. The cured coating acts as an excellent base layer, improving adhesion and extending the life of the topcoat.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTough polymer finish serves as a paintable primer\u003c\/li\u003e\n  \u003cli\u003eFormulated for use with body filler and fiberglass repairs\u003c\/li\u003e\n  \u003cli\u003eAllow adequate cure time per product instructions before painting\u003c\/li\u003e\n  \u003cli\u003eTopcoat with suitable marine or automotive paint where applicable\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I apply Permatex rust treatment safely and effectively?\u003c\/h3\u003e\n\u003cp\u003eSurface prep and application method affect results: remove grease, heavy scale and loose flakes before treatment, then brush or spray the liquid over the rusted area for complete coverage. Work in a well-ventilated space at recommended temperatures and follow safety directions on the label.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClean surface of oil, grease and loose rust prior to application\u003c\/li\u003e\n  \u003cli\u003eApply evenly by brush or spray to saturated coverage\u003c\/li\u003e\n  \u003cli\u003eAllow minutes for the polymer coating to form; follow cure timing before sanding or painting\u003c\/li\u003e\n  \u003cli\u003eUse appropriate PPE and ventilation during application\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Permatex 81773 Rust Treatment is aimed at mechanics, fabricators, fleet and farm maintenance crews, boat owners (for topside repairs with proper topcoats), and DIYers who need a ready-to-use rust converter that also functions as a paintable primer. It’s especially useful when full metal replacement isn’t practical and you need a quick, durable way to stabilize corroded components prior to filler work or repainting. Keep in mind it’s not intended for final automotive exterior sheet metal finish panels.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I paint over Permatex 81773 Rust Treatment?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. After the polymer coating forms and cures, the surface accepts primer and paint and is compatible with body filler and fiberglass repairs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this product safe for marine use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes for topside items like hatch covers when followed by an appropriate marine topcoat; not for submerged metal without specialized coatings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Permatex","offers":[{"title":"Default Title","offer_id":55166921179479,"sku":"B000HBNX38","price":35.09,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/permatex-81773-front-label.jpg?v=1790372698","url":"https:\/\/britishgarage.co.uk\/products\/permatex-rust-treatment-converter-16-oz-1-step-rust-to-polymer-paintable-primer","provider":"British Garage","version":"1.0","type":"link"}