{"product_id":"permatex-ultra-grey-rtv-silicone-gasket-maker-13-oz-6-pack-rigid-high-torque-oil-heat-resistant","title":"Permatex Ultra Grey RTV Silicone Gasket Maker — 13 oz. (6-Pack), Rigid High-Torque, Oil \u0026 Heat Resistant","description":"\u003cp\u003e\u003cstrong\u003ePermatex Ultra Grey Rigid High-Torque RTV Silicone Gasket Maker is a high-performance silicone sealant formulated for high-torque, high-vibration engine environments and supplied here as a convenient 6-pack of 13 oz. cartridges.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis premium RTV gasket maker is engineered for demanding automotive applications where engine torque and vibration challenge ordinary sealants. It meets or exceeds many OEM requirements and delivers strong resistance to oils, coolant, and common shop fluids while remaining non-corrosive and low-odor. Rated for continuous service down to -65°F and intermittent exposure up to 500°F, Ultra Grey is intended for components that require a durable, rigid seal.\u003c\/p\u003e\n\n\u003ch3\u003eWhat engine parts is this gasket maker designed for?\u003c\/h3\u003e\n\u003cp\u003eUltra Grey is formulated for areas that experience heavy mechanical stress and movement, such as imported and high-performance engines. Its rigid cure helps maintain sealing integrity on flanged surfaces subject to torque and vibration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eValve covers — prevents oil leaks under high-torque conditions\u003c\/li\u003e\n  \u003cli\u003eOil pans — resists oil and road fluids for long-lasting seals\u003c\/li\u003e\n  \u003cli\u003eIntake manifold end seals — holds against vibration and pressure changes\u003c\/li\u003e\n  \u003cli\u003eTiming covers, water pumps, thermostat housings — tough against heat and fluids\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the product perform under heat, oil, and vibration?\u003c\/h3\u003e\n\u003cp\u003eThe formulation provides strong resistance to automotive fluids and mechanical stress without corroding metal surfaces. It cures to a firm, rigid gasket that tolerates a broad temperature range, helping maintain a seal during both hot operating conditions and cold starts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTemperature capability: -65°F continuous to 500°F intermittent\u003c\/li\u003e\n  \u003cli\u003eOutstanding resistance to oils, coolant, and shop chemicals\u003c\/li\u003e\n  \u003cli\u003eMaximum vibration resistance suitable for high-torque engines\u003c\/li\u003e\n  \u003cli\u003eNon-corrosive chemistry that protects mating surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I apply and cure this RTV gasket maker for best results?\u003c\/h3\u003e\n\u003cp\u003ePreparation and application directly affect seal reliability: clean mating surfaces, remove old gasket material, and apply a continuous bead where specified. Allow the recommended cure time before reassembling components and exposing them to full pressure or fluids.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSurface prep: clean, dry, and free of oil or residue\u003c\/li\u003e\n  \u003cli\u003eApplication: apply an uninterrupted bead to the flange per component instructions\u003c\/li\u003e\n  \u003cli\u003eCure: allow skin time then full cure per product guidelines before pressurizing\u003c\/li\u003e\n  \u003cli\u003eStorage: keep cartridges sealed and stored in a cool, dry place when not in use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy choose the 6-pack of 13 oz. cartridges?\u003c\/h3\u003e\n\u003cp\u003eBuying the six-cartridge pack supplies multiple repair jobs or supports a professional shop with frequent gasket needs. The larger cartridge size reduces setup frequency and helps ensure consistent application across several assemblies.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCost-effective for fleet or shop use compared with single cartridges\u003c\/li\u003e\n  \u003cli\u003e13 oz. size covers more joints per cartridge for fewer changes\u003c\/li\u003e\n  \u003cli\u003eConsistent product batch across jobs for predictable performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Permatex Ultra Grey Rigid High-Torque RTV is suited to professional mechanics, experienced DIYers, and anyone working on high-torque or vibration-prone engines—especially import or performance applications. If you need a low-odor, non-corrosive gasket maker that stands up to oils, coolant, heat, and mechanical stress, this six-pack provides multiple, reliable cartridges for shop or home projects.\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: Is this RTV safe for aluminum surfaces?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The non-corrosive formula is compatible with aluminum and common engine metals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long before I can run the engine after application?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Allow skin time and the manufacturer’s recommended full cure before pressurizing; times vary by bead size and conditions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Permatex","offers":[{"title":"Default Title","offer_id":67585111294137,"sku":"B000XG5ROK","price":340.91,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/permatex-ultra-grey-front-packaging.jpg?v=1790467669","url":"https:\/\/redleafauto.ca\/products\/permatex-ultra-grey-rtv-silicone-gasket-maker-13-oz-6-pack-rigid-high-torque-oil-heat-resistant","provider":"Redleaf Auto","version":"1.0","type":"link"}