Top 10 Silicone Sealant Automotive – Gasket Sealers

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1. Permatex

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3.35 oz. Tube, Permatex 82180 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker

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Permatex #ad - Sensor-safe, non-corrosive formula designed for superior adhesion to oily surfaces and long term durability. Temperature range -65°f to 500°f -54°C to 260°C intermittent. Fit type: Universal. Superior resistance to powertrain fluids including engine oil, transmission fluid, gear lube and coolants. Suggested applications: Valve covers, oil pans, intake manifold end seals, timing covers, and differential covers.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.38 Inches
Weight0.1 Pounds
Width3.81 Inches
Part Number82180
Model82180
WarrantyLimited Manufacturer

2. Permatex

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3 oz. Tube, Permatex 81158 Black Silicone Adhesive Sealant, Pack of 1

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Permatex #ad - Fit type: Universal. Temperature range: -75°f to 450°f -59°C to 232°C. Note: surfaces being bonded may need clamping for 1 hour or until silicone is firm. Seals, vinyl, plastics, bonds, metal, repairs, fabric, mends and secures glass, weather stripping and vinyl tops. Waterproof and flexible; resists water, weather, and vibration. Suggested applications: door frames, vinyl tops, seams and roofs, electrical connections, and weather stripping; protects and repairs electrical wiring. Sensor-safe, general purpose black RTV indoor/outdoor sealant.
BrandPermatex #ad
ManufacturerPermatex #ad
Height2 Inches
Length8 Inches
Weight0.24 Pounds
Width4 Inches
Part Number81158
Model81158
WarrantyManufacturer Warranty

3. Henkel

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Henkel 908570 2.7 oz Tub Clear Silicone Waterproof Sealant, Single Tube

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Henkel #ad - Use for sealing or repairing door frames, outside of fireplace doors, windows, weather-stripping, vents, appliances, gaskets, toys, shoes and boots.7 oz. Bonds abs, glass, fiberglass, aluminum, stainless steel, ceramic, granite, wood, vinyl tile, porcelain, cultured marble, some rubbers and plastics. Aquarium safe. No cracking, peeling or shrinking. 2.
BrandHenkel #ad
ManufacturerLoctite #ad
Height8 Inches
Length1.25 Inches
Width3.81 Inches
Part Number908570
Model908570

4. Permatex

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3.5 oz., Permatex 82194 Ultra Grey Rigid High-Torque RTV Silicone Gasket Maker

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Permatex #ad - Low odor and non-corrosive formula. Suggested applications: valve covers, intake manifold end seals, water pumps, oil pans, timing covers, thermostat housings. Designed specially for high-torque and high vibration applications. Maximum vibration resistance, with outstanding resistance to oils, cooling and shop fluids.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.25 Inches
Weight0.26 Pounds
Width3.81 Inches
Part Number82194
Model82194
WarrantyLIMITED WARRANTY

5. Permatex

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Permatex 81160 High-Temp Red RTV Silicone Gasket, 3 oz

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Permatex #ad - Formulated for hi-temp Applications, Or Heavy-Duty Use. Makes reliable 'formed-in-place' Gaskets That Resist Cracking, Shrinking And Migrating. Temperature range of -65F To 650F Intermittent. Replaces almost any cut gasket, And Coats Pre-Cut Gaskets To Increase Reliability.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.25 Inches
Weight0.2 Pounds
Width3.81 Inches
Part Number81160
Model81160
WarrantyLimited Manufacturer

6. J-B Weld

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J-B Weld 32929 Ultimate Black RTV Silicone Gasket Maker and Sealant, 9.5 oz.

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J-B Weld #ad - What the professionals use: builders, mechanics & repair pros know our products bond strong to a variety of surfaces in even the toughest environments. Choose the product pros trust for your project.

Do it yourself: big or small, you can diy it with j-b. Hi temp silicone gasket maker & sealant: is an rtv silicone gasketing material, designed for use in mechanical assemblies where continuous temperatures up to 550º F or 650º F intermittent exist. Easy to use: curing when the product is exposed to the moisture in air, it forms a tough, waterproof seal on most surfaces.

It will not shrink or crack, resists weathering and is sensor safe. Versatile & dependable: ideal for automotive, differential covers, metal, oil pans, timing covers, exhaust manifolds, water pumps, drive housings and oven doors. Jb weld delivers the legendary performance of the World's Strongest Bond. Our heavy duty adhesives repair & restore it right the first time.
BrandJ-B Weld #ad
ManufacturerJBWeld #ad
Height4 Inches
Length9 Inches
Weight0.7 Pounds
Width6 Inches
Part Number32929
Model32929

7. Permatex

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3 oz. Tube, Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker

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Permatex #ad - Suggested applications: Exhaust manifolds/headers, valve covers, water pumps, timing covers, oil pans, thermostat housings. 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.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.38 Inches
Weight0.19 Pounds
Width3.81 Inches
Part Number81878
Model81878
WarrantyManufacturer

8. 3M

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08661, 3 oz, 3M Clear Super Silicone Seal

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3M #ad - Sealant cures to a tough, rubbery solid when exposed to moisture in the air. For industrial/occupational use only. Product effectively bonds to a variety of materials, glass, ceramic, wood, natural and synthetic fiber, including clean metal, painted surfaces and many plastics. Versatility allows for use throughout an automobile. Not for consumer sale or use. Adhesive properties offer high resistance to weathering, ozone, moisture, vibration, and extreme temperatures. Rapid-curing clear silicone seal offers excellent adhesion.
Brand3M #ad
Manufacturer3M #ad
Height1.5 Inches
Length7 Inches
Weight0.25 Pounds
Width6 Inches
Part Number08661
Model08661
Warranty1 year manufacturer

9. Permatex

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3.35 oz. Tube, 2 Pack, Permatex 82180 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker

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Permatex #ad - Permatex 82180 ultra black maximum oil resistance RTV Silicone Gasket Maker, 3. 35 oz. Tube, 2 Pack.
BrandPermatex #ad
ManufacturerPermatex #ad
Height4 Inches
Length1 Inches
Weight0.54 Pounds
Width4 Inches
Part Number82180-2
Model82180-2

10. Permatex

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7.25 oz. PowerBead Can, Permatex 85913 Clear RTV Silicone Adhesive Sealant

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Permatex #ad - Seals, plastics, fabric, repairs, vinyl, mends and secures glass, bonds, metal, weather stripping and vinyl tops. Suggested applications: windshields, seams and roofs, electrical connections, door frames, vinyl tops. May be applied to horizontal or vertical surfaces. Protects and repairs electrical wiring. Resists oil, vibration, grease and weather, water, with a temperature range of -75F to 400F.
BrandPermatex #ad
ManufacturerPermatex #ad
Height2.06 Inches
Length2.06 Inches
Weight0.66 Pounds
Width10 Inches
Part Number85913
Model85913
WarrantyLIMITED WARRANTY