{"product_id":"permatex-ultra-black-rtv-silicone-gasket-maker-6-0-5-oz-tubes-oil-resistant-sensor-safe","title":"Permatex Ultra Black RTV Silicone Gasket Maker, 6 × 0.5 oz Tubes — Oil-Resistant, Sensor-Safe","description":"\u003cb\u003ePermatex Ultra Black is a fast-curing, oil-resistant RTV silicone gasket maker supplied in six 0.5 oz tubes for forming flexible, sensor-safe seals on engines and drivetrains.\u003c\/b\u003e\n\n\u003cp\u003eDesigned for modern engines and service environments, this Ultra Black formula offers strong adhesion, low odor, and compatibility with sensors and high-tech materials. Its patented adhesion system maintains flexibility and oil resistance so gaskets stay effective under vibration, heat cycles, and exposure to auto fluids. Packaged as six half-ounce tubes, it’s convenient for workshops, dealerships and home mechanics who need a reliable RTV that meets OEM-style performance and warranty requirements.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this gasket maker handle high temperatures and fluids?\u003c\/h3\u003e\n\u003cp\u003eThe Permatex Ultra Black formula resists a wide range of automotive fluids and stays flexible across extreme temperatures. It’s engineered to tolerate heat cycles common to engines and transmissions while maintaining a sealing surface that won’t crumble or harden prematurely.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIntermittent temperature tolerance up to 500°F.\u003c\/li\u003e\n  \u003cli\u003eResists oils, coolants, transmission fluid and many shop chemicals.\u003c\/li\u003e\n  \u003cli\u003eFormulated to retain torque and resist vibration-induced leaks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this safe to use around modern sensors and sensitive components?\u003c\/h3\u003e\n\u003cp\u003eYes — Ultra Black is sensor-safe and non-corrosive, making it suitable for components with oxygen sensors or electrical sensing devices nearby. Its low-odor, fast-curing nature also reduces contamination risk during installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSensor-safe formulation for O2 sensors and other engine monitors.\u003c\/li\u003e\n  \u003cli\u003eLow odor and non-corrosive chemistry for safer handling.\u003c\/li\u003e\n  \u003cli\u003eWorks on aluminum, bi-metals and many modern plastics used in engines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich surfaces and parts can I seal with these 0.5 oz tubes?\u003c\/h3\u003e\n\u003cp\u003eThe half-ounce tubes are sized for precise application on smaller engine and drivetrain seals, but still capable for common larger flanges when used appropriately. Permatex recommends uses that match OE silicone gasket performance for both production and repair settings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eValve covers and valve cover seams\u003c\/li\u003e\n  \u003cli\u003eOil pans, transmission pans and timing covers\u003c\/li\u003e\n  \u003cli\u003eIntake manifold end seals and many common engine flanges\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does pack size and packaging benefit mechanics and shops?\u003c\/h3\u003e\n\u003cp\u003eComing as a six-pack of 0.5 oz tubes, this set is handy for multiple small jobs or for shops that need controlled, low-waste cartridges. The smaller tubes let technicians apply a bead accurately without excess product waste and simplify inventory for warranty-compliant repairs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSix compact 0.5 oz tubes for multiple repairs or staged use.\u003c\/li\u003e\n  \u003cli\u003ePrecision application reduces mess and material loss.\u003c\/li\u003e\n  \u003cli\u003eMeets OEM-style performance for warranty and dealership requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Permatex Ultra Black 22072-6PK is aimed at professional technicians, dealership service departments and knowledgeable DIYers who require a durable, sensor-safe RTV sealant that conforms to modern engine materials and warranty standards. If you need a fast-curing, oil-resistant silicone that provides reliable torque retention and vibration resistance across common automotive service applications, this six-pack of 0.5 oz tubes offers convenient, ready-to-use supply for routine maintenance and repairs.\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 Permatex Ultra Black be used with oxygen sensors nearby?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The formula is sensor-safe and non-corrosive, suitable for use near O2 sensors and other engine monitors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What temperature range does this gasket maker withstand?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It tolerates intermittent temperatures up to 500°F and resists common automotive fluids and vibration.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Permatex","offers":[{"title":"Default Title","offer_id":48084756398238,"sku":"B001REYM3E","price":38.91,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/permatex-ultra-black-front-packaging.jpg?v=1785861876","url":"https:\/\/northtrailauto.ca\/products\/permatex-ultra-black-rtv-silicone-gasket-maker-6-0-5-oz-tubes-oil-resistant-sensor-safe","provider":"North Trail Auto","version":"1.0","type":"link"}