{"product_id":"permatex-rust-treatment-rust-converter-16-oz-fast-acting-paintable-black-polymer-finish","title":"Permatex Rust Treatment rust converter 16 oz — fast-acting, paintable black polymer finish","description":"\u003cstrong\u003ePermatex 81773 Rust Treatment is a brush-or-spray formula that chemically removes existing rust and leaves a durable black polymer coating that can be painted over.\u003c\/strong\u003e\n\nPermatex Rust Treatment (16 oz) converts flaky iron oxide into a tough, protective finish in minutes, simplifying restoration and maintenance tasks on metal equipment. The solvent-based liquid is designed for automotive parts, farm gear, fences, tanks and other steel surfaces where you need to stop active rust and create a paint-ready primer without heavy grinding or replacement.\n\n\u003ch3\u003eHow quickly does it stop rust and what happens after application?\u003c\/h3\u003e\n\u003cp\u003eRust Treatment works fast: applied by brush or spray, it reacts with rust within minutes and forms a black polymer surface that stabilizes the metal. That coating seals remaining corrosion and protects against immediate re-formation while serving as a base for paint.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVisible neutralization of rust in minutes\u003c\/li\u003e\n  \u003cli\u003eLeaves a durable black polymer finish\u003c\/li\u003e\n  \u003cli\u003eCoating is compatible with paint and topcoats\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich surfaces and temperatures are suitable for use?\u003c\/h3\u003e\n\u003cp\u003eUse on ferrous metal surfaces such as chassis, trailers, pipes, valves, tanks, agricultural implements and marine tops (topcoat with marine paint as needed). Apply when ambient temperature is between 50°F and 90°F (10°C–32°C) and when the surface is below 200°F (93°C).\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for automotive applications (except exterior sheet metal repairs)\u003c\/li\u003e\n  \u003cli\u003eSafe for structural metal, valves, decks, and farm equipment\u003c\/li\u003e\n  \u003cli\u003eNot intended for hot surfaces exceeding 200°F\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow is it applied and what preparation is required?\u003c\/h3\u003e\n\u003cp\u003eMinimal prep often required: remove loose scale and heavy flaking rust, then brush or spray the product directly on the affected area. Within minutes the rust converts and a black polymer coating develops; after curing you can sand, use body filler or apply fiberglass where needed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBrush or spray application for versatility\u003c\/li\u003e\n  \u003cli\u003eCompatible with body filler and fiberglass repairs\u003c\/li\u003e\n  \u003cli\u003eCan be sanded and painted after curing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes it a good primer substitute for corroded parts?\u003c\/h3\u003e\n\u003cp\u003eThe converted polymer finish adheres to the metal and provides a stable, paintable surface—reducing the need for full panel replacement in many cases. It acts as a protective base that improves topcoat performance on previously rusted areas.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eProduces a tough primer-like coating over treated rust\u003c\/li\u003e\n  \u003cli\u003ePaintable and compatible with common topcoats\u003c\/li\u003e\n  \u003cli\u003eHelps extend the service life of repaired components\u003c\/li\u003e\n\u003c\/ul\u003e\n\nWho is this for\n\nPermatex 81773 is aimed at mechanics, restorers and DIYers who need a fast, reliable way to neutralize rust and prep metal for painting without full teardown. It’s a practical choice for truck and trailer maintenance, agricultural gear upkeep, marine tops (with appropriate topcoat), fences and storage tanks—anyone who wants to stop active corrosion quickly and create a paint-ready surface without replacing the part.\n\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 Rust Treatment?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. After the black polymer coating cures, it can be sanded and topcoated with compatible paint.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is it safe for marine use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes for tops and hatch covers when followed by an appropriate marine topcoat; not a substitute for full underwater coatings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Permatex","offers":[{"title":"Default Title","offer_id":48087364960414,"sku":"B000HBNX38","price":34.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/permatex-rust-treatment-front.jpg?v=1785921831","url":"https:\/\/northtrailauto.ca\/products\/permatex-rust-treatment-rust-converter-16-oz-fast-acting-paintable-black-polymer-finish","provider":"North Trail Auto","version":"1.0","type":"link"}