{"product_id":"permatex-thread-sealant-with-ptfe-16-oz-red-pressure-resistant-65-f-to-300-f","title":"Permatex Thread Sealant with PTFE, 16 oz Red — Pressure‑Resistant, -65°F to 300°F","description":"\u003cp\u003e\u003cstrong\u003ePermatex 80633 Thread Sealant with PTFE is a red, general-purpose pipe and fitting sealant formulated to create reliable, pressure-resistant seals in air, oil, diesel fuel and hydraulic systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned as an affordable, easy-to-apply alternative to tapes and traditional pipe dopes, this 16 oz. tube combines a tacky carrier with PTFE (polytetrafluoroethylene) to improve sealing performance and resistance to common shop fluids. The formula stays pliable from -65°F to 300°F, tolerating a wide span of operating temperatures while maintaining leak protection. Typical uses include air conditioning fittings, temperature sending units and hydraulic connections where a reusable, serviceable joint is required.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this sealant perform compared with pipe tape or dope?\u003c\/h3\u003e\n\n\u003cp\u003ePermatex 80633 offers a thicker, more forgiving seal than thin tapes and can fill irregular thread patterns better than some liquid dopes. The embedded PTFE reduces friction for easier thread engagement while helping to prevent leaks under pressure. Because it remains pliable across a broad temperature range, it resists cracking and shrinkage that can compromise seals.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOutperforms tape and many pipe dopes on uneven or worn threads\u003c\/li\u003e\n  \u003cli\u003ePTFE reduces thread galling and eases assembly\u003c\/li\u003e\n  \u003cli\u003eTemperature range -65°F to 300°F maintains pliability\u003c\/li\u003e\n  \u003cli\u003eResists common shop fluids like oil and diesel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this safe for hydraulic, fuel, and air systems?\u003c\/h3\u003e\n\n\u003cp\u003eThis Permatex sealant is formulated for use in hydraulic, air, oil and diesel fuel systems, providing a reliable pressure seal when applied correctly. It resists breakdown from petroleum-based fluids and maintains integrity where vibration and temperature cycling occur. Always verify compatibility for specific fuels or system materials before widespread use.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSuitable for hydraulic fittings and air conditioning connections\u003c\/li\u003e\n  \u003cli\u003eResists oil and diesel fuel exposure during service\u003c\/li\u003e\n  \u003cli\u003eWorks on standard metal pipe and fitting materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I apply and cure the Permatex 80633 thread sealant?\u003c\/h3\u003e\n\n\u003cp\u003eClean threads of dirt, oil and old sealant before applying a thin, even coat to male threads; assemble and tighten to the recommended torque. Excess material should be wiped away to avoid contamination of system internals. Cure time depends on joint size and ventilation—small joints set quickly while larger assemblies may require longer to reach full strength.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRemove contaminants before application for best adhesion\u003c\/li\u003e\n  \u003cli\u003eApply an even coat to male threads only; wipe excess\u003c\/li\u003e\n  \u003cli\u003eTighten fittings to manufacturer torque specs\u003c\/li\u003e\n  \u003cli\u003eAllow curing time proportional to joint size and airflow\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat environmental and handling details should I know?\u003c\/h3\u003e\n\n\u003cp\u003eThe product has a flash point of 24.0°C, so handle and store away from open flames and high heat. Use in well-ventilated areas and follow standard shop safety practices, including gloves and eye protection if contact is likely. Dispose of any waste or used containers according to local regulations.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFlash point: 24.0°C — store away from ignition sources\u003c\/li\u003e\n  \u003cli\u003eUse ventilation and personal protective equipment as needed\u003c\/li\u003e\n  \u003cli\u003eFollow local rules for disposal of chemical products\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Permatex 80633 is aimed at technicians, mechanics and DIY enthusiasts who need a dependable, versatile thread sealant for air, oil, diesel and hydraulic fittings. It’s a practical choice for maintenance shops, HVAC installers, fleet service, and home garages where a robust, temperature-resistant sealant that outperforms tape and many dopes is required. Choose this product when you want an economical, serviceable seal that tolerates a broad range of temperatures and common shop fluids.\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 80633 be used on fuel lines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—it's formulated to resist diesel and oil exposures, but confirm compatibility with specific fuel types and manufacturer recommendations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What temperature range does this sealant tolerate?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It remains pliable from -65°F to 300°F, making it suitable for many hot and cold operating environments.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Permatex","offers":[{"title":"Default Title","offer_id":48087364829342,"sku":"B000HBM49W","price":35.66,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/permatex-80633-front-label.jpg?v=1785921833","url":"https:\/\/northtrailauto.ca\/products\/permatex-thread-sealant-with-ptfe-16-oz-red-pressure-resistant-65-f-to-300-f","provider":"North Trail Auto","version":"1.0","type":"link"}