{"product_id":"permatex-ultra-red-high-temperature-gasket-maker-13-oz-sensor-safe-oil-resistant","title":"Permatex Ultra Red High Temperature Gasket Maker, 13 oz — Sensor-Safe, Oil-Resistant","description":"\u003cp\u003e\u003cstrong\u003ePermatex 81624 Ultra Red High Temperature Gasket Maker is a sensor-safe, high-temperature silicone sealant designed to form reliable gaskets and repairs that resist heat, oil, and common shop fluids.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis 13 oz cartridge of Ultra Red combines high-temperature tolerance with strong adhesion and flexibility so you can create effective gaskets or dress existing ones. It meets OE silicone gasket performance specifications and is formulated for professional and DIY use where elevated temperatures and exposure to oils are expected. The product is low-odor, non-corrosive, non-flammable, and labeled sensor-safe to protect modern engine components.\u003c\/p\u003e\n\n\u003ch3\u003eHow hot can this gasket maker handle?\u003c\/h3\u003e\n\u003cp\u003eUltra Red is engineered for demanding thermal environments. It withstands intermittent peaks up to 650°F (399°C), making it suitable for many engine and exhaust-area repairs where silicone performance is required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIntermittent temperature resistance: up to 650°F (399°C)\u003c\/li\u003e\n  \u003cli\u003eContinuous-use resilience for common engine temperatures\u003c\/li\u003e\n  \u003cli\u003eMaintains seal integrity under thermal cycling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it resist oil and common shop fluids?\u003c\/h3\u003e\n\u003cp\u003eYes — the formula is dual-resistant, providing durable protection against both high temperatures and exposure to oils, fuels, and typical automotive fluids. That makes it appropriate for areas where oil contamination would otherwise break down ordinary sealants.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOil and fluid resistant formulation for engine compartments\u003c\/li\u003e\n  \u003cli\u003eMaintains adhesion when exposed to gasoline, motor oil, and coolant splashes\u003c\/li\u003e\n  \u003cli\u003eHelps prevent leaks by preserving flexibility after fluid exposure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs it safe around sensors and electronics?\u003c\/h3\u003e\n\u003cp\u003ePermatex designates this gasket maker as sensor-safe, meaning it is compatible with oxygen sensors and similar components when used according to instructions. Its low-odor, non-corrosive profile reduces the chance of harming nearby electronics or sensors during cure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSensor-safe formulation recommended for O2 sensor areas when installed properly\u003c\/li\u003e\n  \u003cli\u003eLow odor and non-corrosive to protect surrounding components\u003c\/li\u003e\n  \u003cli\u003eNon-toxic and non-flammable for safer shop use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I apply and where is it best used?\u003c\/h3\u003e\n\u003cp\u003eApply from the 13 oz cartridge with a standard caulking gun to clean, dry surfaces. It can be used as a formed gasket, as a dressing, or to replace OE silicone gaskets on flanges and covers where high heat and fluid exposure occur.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse on valve covers, transmission pans, water pumps, and oil pans\u003c\/li\u003e\n  \u003cli\u003eApply a continuous bead and allow recommended cure time before pressurizing\u003c\/li\u003e\n  \u003cli\u003eMeets performance specs of OE silicone gaskets for many applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Permatex 81624 Ultra Red High Temperature Gasket Maker is aimed at professional mechanics, restoration enthusiasts, and knowledgeable DIYers who need a high-heat, oil-resistant silicone seal for engine and exhaust-area repairs. If you require sensor-safe material, low odor, and a product that matches OE silicone gasket performance while tolerating aggressive shop conditions, this 13 oz cartridge provides a versatile, durable option.\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 use Permatex Ultra Red on an exhaust manifold?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It tolerates intermittent heat up to 650°F; suitable for some exhaust-area applications but follow vehicle maker guidance for manifold gaskets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long before the seal is cured?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Cure time varies with bead size and conditions; allow manufacturer-recommended drying time before reassembly or pressurizing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Permatex","offers":[{"title":"Default Title","offer_id":48086535307422,"sku":"B08CRXW1H9","price":42.06,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/permatex-ultra-red-front-packaging.jpg?v=1785900131","url":"https:\/\/northtrailauto.ca\/products\/permatex-ultra-red-high-temperature-gasket-maker-13-oz-sensor-safe-oil-resistant","provider":"North Trail Auto","version":"1.0","type":"link"}