Top 9 RTV Silicone High Temp – Gasket Sealers

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1. Permatex

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

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Permatex #ad - Replaces almost any cut gasket, and coats pre-cut gaskets to increase reliability. Formulated for hi-temp applications, or heavy-duty use. Makes reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating. Suggested applications: Valve covers, timing covers, water pumps, oil pans, thermostat housings, transmission pans. Temperature range of -65F to 650F intermittent.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.25 Inches
Weight0.2 Pounds
Width3.81 Inches
Part Number81160
Model81160
WarrantyLimited Manufacturer

2. J-B Weld

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J-B Weld 31914 Red High Temperature RTV Silicone Gasket Maker and Sealant, 10.3 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. Do it yourself: big or small, you can diy it with j-b.

Our heavy duty adhesives repair & restore it right the first time. Choose the product pros trust for your project. Versatile & dependable: ideal for automotive, exhaust manifolds, metal, differential covers, oil pans, timing covers, water pumps, drive housings and oven doors. It will not shrink or crack, resists weathering and is sensor safe. Jb weld delivers the legendary performance of the World's Strongest Bond.

Easy to use: curing when the product is exposed to the moisture in air, it forms a tough, waterproof seal on most surfaces. 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.
BrandJ-B Weld #ad
ManufacturerJBWeld #ad
Height5 Inches
Length11 Inches
Width9 Inches
Part Number31914
Model31914

3. Permatex

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Permatex 81422 Sensor-Safe High-Temp RTV Silicone Gasket Maker, 3 oz.

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Permatex #ad - Temperature range: -65F to 650F intermittent. Resistant to auto and shop fluids. Specially formulated for engines equipped with oxygen sensors. Suggested applications: valve covers, water pumps, timing covers, oil pans, thermostat housings and transmission pans. First generation 1970-1980 gasket maker.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.25 Inches
Weight0.33 Pounds
Width3.81 Inches
Part Number81422
Model81422

4. Permatex

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Permatex High-Temp Red RTV Silicone Gasket Maker 3 oz., 2 Pack

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Permatex #ad - Bundle consists of 6 Items:. 2 pairs 4 gloves of clc2316L Latex Gloves - Large. 2 - permatex high-temp red RTV Silicone Gasket Maker 3 oz.
BrandPermatex #ad
ManufacturerPermatex #ad
Part Number81160-2PK

5. Sprayon

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8 oz., High Temp Red RTV Silicone Sealant

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Sprayon #ad - Application: aerosol Spray Color: Red Specific Gravity: 1. 00 characteristics: 100% Pure Silicone Temp. Substrates: not specified standards: nsf registered p1 flash point: 109 degrees f item: rtv Silicone Sealant Size: 8 oz. Range: 80 - 450 degrees f country of Origin subject to change: United States. Price for: each application time: 10 min.
BrandSprayon #ad
ManufacturerSprayon #ad
Height9 Inches
Length3 Inches
Weight1 Pounds
Width3 Inches
Part NumberA00050
ModelA00050

6. 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 - Suggested applications: valve covers, intake manifold end seals, timing covers, oil pans, water pumps, thermostat housings. Designed specially for high-torque and high vibration applications. Maximum vibration resistance, with outstanding resistance to oils, cooling and shop fluids. Low odor and non-corrosive formula. Oem specified, guaranteed not to leak.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.25 Inches
Weight0.26 Pounds
Width3.81 Inches
Part Number82194
Model82194
WarrantyLIMITED WARRANTY

7. Permatex

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

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Permatex #ad - 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. Retains high flexibility and eliminates the need for pre-formed, pre-cut, paper, rubber or cork gaskets; OEM specified and approved for dealership warranty requirements. Sensor-safe, non-corrosive formula designed for superior adhesion to oily surfaces and long term durability. Suggested applications: Valve covers, intake manifold end seals, timing covers, oil pans, and differential covers.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.38 Inches
Weight0.1 Pounds
Width3.81 Inches
Part Number82180
Model82180
WarrantyLimited Manufacturer

8. Permatex

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Permatex 230-81409#26 High-Temp Rtv Silicone Gasket Maker 11 Oz

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Permatex #ad - Great Gift Idea. Satisfaction Ensured. Excellent Quality. Coat pre-cut gaskets to increase reliability. Produced with the highest grade materials.
BrandPermatex #ad
ManufacturerItw Permatex, Inc. #ad
Height5 Inches
Length12 Inches
Weight0.83 Pounds
Width12 Inches
Part Number81409

9. Permatex

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

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Permatex #ad - Temperature range -75F to 700F intermittent. Suggested applications: Exhaust manifolds/headers, timing covers, valve covers, water pumps, oil pans, thermostat housings. 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. Most advanced, high temp RTV silicone gasket available.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.38 Inches
Weight0.19 Pounds
Width3.81 Inches
Part Number81878
Model81878
WarrantyManufacturer