Best Engine Gasket Sealer 2020 – Top 10 Reviewed!

Bestseller No. 1
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
Bestseller No. 2
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. 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)
Bestseller No. 4
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. 5
Permatex 27036 Optimum Grey Gasket Maker 3.35 oz, 1 Pack
69 Total Customer Reviews
Permatex 27036 Optimum Grey Gasket Maker 3.35 oz, 1 Pack
  • 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.
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 80016 Form-A-Gasket #2 Sealant, 3 oz.
  • Slow-drying, non-hardening sealant approved for use in aviation as well as automotive applications
  • Designed for dressing/sealing cut gaskets on flexible/stamped parts
  • Allows for easy disassembly if required; resists gasoline, oil and grease
  • Temperature Range: -65F to 400F (-54C to 204C)
Bestseller No. 8
Permatex 81878  Ultra Copper Maximum Temperature RTV Silicone Gasket Maker, 3 oz. Tube
447 Total Customer Reviews
Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker, 3 oz. Tube
  • Most advanced, high temp RTV silicone gasket available
  • Three times more oil resistant than conventional silicones; eight times more flexible than cut gaskets
  • Sensor-safe, low odor, and non-corrosive with superior adhesion
  • Temperature range -75F to 700F intermittent
SaleBestseller No. 9
Permatex 80017 Aviation Form-A-Gasket No. 3 Sealant, 16 oz.
322 Total Customer Reviews
Permatex 80017 Aviation Form-A-Gasket No. 3 Sealant, 16 oz.
  • Slow-drying, non-hardening brush-top sealant
  • Resists gasoline, oil and grease
  • Approved for use in aviation as well as automotive applications
  • Suggested Applications: Close-fitting machined surfaces, sealing hoses, solid gaskets
SaleBestseller No. 10
Bar's Leak HG-1 HEAD SEAL Blown Head Gasket Repair
636 Total Customer Reviews
Bar's Leak HG-1 HEAD SEAL Blown Head Gasket Repair
  • Repairs blown head and intake gasket leaks
  • Seals cracked cylinder heads and blocks
  • Stops heater core and radiator leaks
  • Fixes leaking freeze and core plugs

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