{"product_id":"permatex-ultra-red-rtv-silicone-gasket-maker-3-oz-high-temperature-sensor-safe-sealant","title":"Permatex Ultra Red RTV Silicone Gasket Maker, 3 oz, High-Temperature Sensor-Safe Sealant","description":"\u003cp\u003ePermatex Ultra Red RTV Silicone Gasket Maker is a high-temperature silicone sealant designed for demanding automotive and marine engine applications. This advanced, low-odor formula withstands continuous temperatures up to 650 degrees F (343 degrees C), surpassing the performance of earlier red RTV formulas and holding up under extreme thermal cycling. It is sensor-safe and non-corrosive, making it suitable for use on engines equipped with oxygen sensors and other electronic components without risk of damage or false readings.\u003c\/p\u003e\u003cp\u003eThis 3 oz tube replaces pre-cut gaskets and is engineered for use on exhaust manifolds, headers, turbochargers, and slip-fit exhaust system connections, where conventional gasket materials break down under sustained heat and vibration. The silicone cures to form a durable, flexible seal that maintains its bond through repeated heat-up and cool-down cycles, helping prevent leaks at high-stress sealing points.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Permatex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 81630\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Ultra Red RTV Silicone Gasket Maker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Contents:\u003c\/strong\u003e 3 fluid ounces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e RTV silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Temperature Resistance:\u003c\/strong\u003e 650 degrees F (343 degrees C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 686226816306\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor-Safe:\u003c\/strong\u003e Yes, non-corrosive formula\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Applications:\u003c\/strong\u003e Exhaust manifolds, headers, turbochargers, slip-fit exhaust systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eUniversal automotive and marine sealing applications; not specific to a particular make, model, or engine.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003eReplaces pre-cut gaskets in high-temperature sealing applications; no specific OEM cross-reference part numbers apply.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat temperature can Permatex Ultra Red RTV Silicone Gasket Maker withstand?\u003c\/strong\u003e It withstands continuous temperatures up to 650 degrees F (343 degrees C), making Permatex part 81630 suitable for high-heat areas like exhaust manifolds and turbochargers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this RTV safe to use near oxygen sensors?\u003c\/strong\u003e Yes, Permatex Ultra Red RTV (part 81630) is a sensor-safe, non-corrosive formula that will not damage oxygen sensors or other electronic engine components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much sealant is in one tube of Permatex 81630?\u003c\/strong\u003e Each tube contains 3 fluid ounces of Ultra Red RTV silicone and weighs 0.2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this product replace a pre-cut gasket?\u003c\/strong\u003e Yes, Permatex Ultra Red RTV Silicone Gasket Maker is formulated to replace pre-cut gaskets in applications subject to high heat and thermal cycling.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color does Permatex Ultra Red RTV cure to?\u003c\/strong\u003e The sealant is red in color, both as applied and after curing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere should Permatex 81630 be used on an engine?\u003c\/strong\u003e It is recommended for exhaust manifolds, headers, turbochargers, and slip-fit exhaust system connections where extreme thermal cycling occurs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes Ultra Red RTV have a strong odor?\u003c\/strong\u003e No, Permatex Ultra Red RTV Silicone Gasket Maker uses a low-odor formula, an improvement over earlier red RTV products.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Permatex Ultra Red RTV corrosive to metal engine parts?\u003c\/strong\u003e No, this is a non-corrosive silicone formula, safe for use on metal engine components and sensors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does Ultra Red RTV compare to earlier red RTV sealants?\u003c\/strong\u003e Permatex Ultra Red RTV Silicone Gasket Maker outperforms previous generation red RTV formulations, offering higher heat resistance up to 650 degrees F and a lower-odor application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this sealant suitable for engines with high thermal cycling?\u003c\/strong\u003e Yes, Permatex part 81630 is specifically designed for environments with extreme thermal cycling, such as exhaust and turbocharger systems.\u003c\/p\u003e","brand":"Permatex","offers":[{"title":"Default Title","offer_id":49028203544795,"sku":"PER-81630","price":9.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/PER-81630__85230.1747363874.500.750.jpg?v=1785165305","url":"https:\/\/www.goodvibesmarina.com\/products\/permatex-ultra-red-rtv-silicone-gasket-maker-3-oz-high-temperature-sensor-safe-sealant","provider":"Good Vibes Marina","version":"1.0","type":"link"}