{"product_id":"permatex-81878-ultra-copper-high-temp-rtv-gasket-maker","title":"Permatex 81878 Ultra Copper High Temp RTV Gasket Maker 85g","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003ePermatex 81878 Ultra Copper RTV Silicone Gasket Maker\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a premium, maximum-temperature gasket maker engineered for demanding automotive applications exposed to extreme heat, vibration and thermal cycling.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDesigned for high-temperature engine and exhaust applications, Ultra Copper forms a durable and flexible silicone gasket that maintains its sealing properties at temperatures of up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e371°C intermittent\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIts sensor-safe, low-odour and non-corrosive formulation makes it ideal for automotive repairs, performance builds, restorations and professional workshop use where conventional gasket materials may struggle with extreme operating temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMaximum Temperature Performance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePermatex Ultra Copper is specifically engineered for applications where \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eheat resistance is the priority\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eKey benefits include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Maximum temperature RTV gasket maker\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Withstands up to 316°C continuously\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Withstands up to 371°C intermittently\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Sensor-safe formulation\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Low odour and non-corrosive\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Resists vibration and thermal cycling\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Resistant to common automotive and workshop fluids\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Remains flexible after curing\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Excellent adhesion to properly prepared surfaces\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• OEM specified\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRecommended Automotive Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePermatex Ultra Copper is particularly suited to high-temperature applications including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Exhaust manifolds\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Exhaust headers\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Header flanges\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Turbocharger applications\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Slip-fit exhaust components\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Other high-temperature automotive flange applications\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIts high temperature capability makes Ultra Copper an excellent choice for performance, modified and classic vehicles where extreme heat can quickly degrade conventional sealing materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eBrand:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Permatex\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eProduct:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ultra Copper RTV Silicone Gasket Maker\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003ePart Number:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 81878\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eColour:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Copper\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eSize:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3 oz \/ approximately 85g\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eType:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High Temperature RTV Silicone Gasket Maker\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eContinuous Temperature Range:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e -54°C to 316°C\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eIntermittent Temperature Range:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e -54°C to 371°C\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eTack-Free Time:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 1 hour\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eFull Cure:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 24 hours\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eSensor Safe:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Yes\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eApplication\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor best results, ensure all mating surfaces are clean, dry and free from old gasket material, oil and contamination.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eApply an even, continuous bead of Ultra Copper to the required sealing surface, surrounding bolt holes where applicable. Assemble components according to the manufacturer's recommended procedure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe product becomes tack-free in approximately one hour and fully cures in approximately 24 hours under normal conditions. Temperature, humidity and joint thickness can affect curing time.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eImportant Application Notes\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePermatex Ultra Copper is resistant to many common automotive fluids, including engine oil, transmission fluid, antifreeze and alcohol.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eNot recommended for parts that are in contact with gasoline.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAlways confirm suitability for the specific component and operating conditions before application.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Buy Permatex From VRP AUTOMOTIVE?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eVRP AUTOMOTIVE is a Permatex distributor supplying genuine Permatex products for automotive enthusiasts, restorers, performance builders and professional workshops.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor applications where extreme operating temperature is the primary concern, Permatex 81878 Ultra Copper provides a proven high-temperature sealing solution designed specifically for demanding automotive environments.\u003c\/span\u003e\u003c\/p\u003e","brand":"VRP Automotive","offers":[{"title":"Default Title","offer_id":52293266899246,"sku":"PX81878","price":21.55,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0807\/7547\/9598\/files\/permatex-81878-ultra-copper-high-temp-rtv-gasket-maker-85g.webp?v=1786714033","url":"https:\/\/vrpautomotive.com\/products\/permatex-81878-ultra-copper-high-temp-rtv-gasket-maker","provider":"VRP Automotive ","version":"1.0","type":"link"}