Best Engine Gasket Sealer 2020 – Top 10 Reviewed!

Bestseller No. 1
Permatex 81160 High-Temp Red RTV Silicone Gasket, 3 oz
694 Total Customer Reviews
Permatex 81160 High-Temp Red RTV Silicone Gasket, 3 oz
  • Formulated for hi-temp applications, or heavy-duty use
  • Replaces almost any cut gasket, and coats pre-cut gaskets to increase reliability
  • Makes reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating
  • Temperature range of -65F to 650F intermittent
Bestseller No. 2
Permatex 82180 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, 3.35 oz. Tube
1,377 Total Customer Reviews
Permatex 82180 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, 3.35 oz. Tube
  • Sensor-safe, non-corrosive formula designed for superior adhesion to oily surfaces and long term durability
  • Superior resistance to powertrain fluids including engine oil, transmission fluid, gear lube and coolants
  • Retains high flexibility and eliminates the need for pre-formed, pre-cut, paper, rubber or cork gaskets; OEM specified and approved for dealership warranty...
  • Temperature Range -65°F to 500°F (-54°C to 260°C) intermittent
SaleBestseller No. 3
Permatex 80062 High Tack Gasket Sealant, 4 oz.
268 Total Customer Reviews
Permatex 80062 High Tack Gasket Sealant, 4 oz.
  • Reliable, fast-drying, all-purpose sealant dries to a highly tacky, non-brittle film; remains tacky indefinitely
  • Tacky paste for holding cut gaskets in place during assembly; helps seal cut gaskets
  • Resists gasoline, oil, antifreeze, axle lube, kerosene, propane and butane; sensor-safe
  • Temperature Range: -65°F to 500°F (-54°C to 260°C)
SaleBestseller No. 4
Permatex 85224 The Right Stuff Gasket Maker, 7.5 oz. PowerBead Can
390 Total Customer Reviews
Permatex 85224 The Right Stuff Gasket Maker, 7.5 oz. PowerBead Can
  • Seals instantly, forming a reliable, long lasting elastomeric rubber gasket; eliminates the need for pre-formed, pre-cut, paper, rubber or cork gaskets
  • Blowout resistant, allowing leakproof gaskets to be made in just one minute; protects against leaks and seepage caused by vibration and thermal expansion
  • Formulated to meet or exceed performance standards for long-term sealability, durability and handling; this material is used on OEM production lines and...
  • Temperature Range: -75°F to 450°F (-59°C to 232°C) continuous, 500°F (260°C) intermittent
Bestseller No. 5
ATP AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle
3,572 Total Customer Reviews
ATP AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle
  • Professional strength fast acting resealer, stops leaks fast
  • Rejuivinates all rubber seals & gaskets in engines, transmissions, power steering, differentials and hydraulic systems
  • Compatible with conventional and synthetic oils, ATF, gear oil, power steering fluids and hydraulic oil
  • Does not contain petroleum distillates, will not over-swell or breakdown seals
Bestseller No. 6
BlueDevil Head Gasket Sealer (38386)
551 Total Customer Reviews
BlueDevil Head Gasket Sealer (38386)
  • Contains no solid or particulate matter that can harm a vehicles engine 
  • Alternative solution for costly and time consuming repairs 
  • Safe and easy to use
  • Permanent Repair
Bestseller No. 7
Permatex 82194 Ultra Grey Rigid High-Torque RTV Silicone Gasket Maker, 3.5 oz.
302 Total Customer Reviews
Permatex 82194 Ultra Grey Rigid High-Torque RTV Silicone Gasket Maker, 3.5 oz.
  • Designed specially for high-torque and high vibration applications
  • Maximum vibration resistance, with outstanding resistance to oils, cooling and shop fluids
  • OEM specified, guaranteed not to leak
  • Low odor and non-corrosive formula
Bestseller No. 8
Permatex 27036 Fluidounces Optimum Grey Gasket Maker 3.35 oz, 3.35 Fluid_Ounces
69 Total Customer Reviews
Permatex 27036 Fluidounces Optimum Grey Gasket Maker 3.35 oz, 3.35 Fluid_Ounces
  • Sensor-safe, low odor, and non-corrosive.
  • Maximum vibration resistance, with outstanding resistance to oils, cooling fluids, and shop fluids. 15% more flexible than Ultra grey.
  • Maximum temperature resistance: -65F to 700f(-54 DegreeC to 371 DegreeC) intermittent. 40% higher Temp. Than Ultra grey.
  • The most Advanced, high Temp RTV silicone gasket maker Available.
SaleBestseller No. 9
Permatex 82180 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, 3.35 oz. Tube, 2 Pack
81 Total Customer Reviews
Permatex 82180 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, 3.35 oz. Tube, 2 Pack
  • Permatex 82180 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, 3.35 oz. Tube, 2 Pack
Bestseller No. 10
J-B Weld 32329 Ultimate Black RTV Silicone Gasket Maker and Sealant, 3. Fluid_Ounces
  • ULTIMATE BLACK GASKET MAKER & SEALANT: Is an RTV (Room Temperature Vulcanized) Silicone gasketing material made for use in mechanical assemblies where maximum...
  • WHAT THE PROFESSIONALS USE: Builders, mechanics & repair pros know our products bond strong to a variety of surfaces in even the toughest environments. Choose...
  • EASY TO USE: Upon cure, silicone forms a tough, waterproof, gasket & seal on most surfaces. It will not shrink or crack, resists oil & petroleum & has...
  • VERSATILE AND DEPENDABLE: Perfect for timing gear covers, oil pans, valve covers, transmission pans, metal, rubber, and many other automotive and mechanical...

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