Top 10 RTV Silicone Gasket Maker – 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 - Retains high flexibility and eliminates the need for pre-formed, paper, pre-cut, 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. Temperature range -65°f to 500°f -54°C to 260°C intermittent. Superior resistance to powertrain fluids including engine oil, transmission fluid, gear lube and coolants. Suggested applications: Valve covers, intake manifold end seals, timing covers, oil pans, and differential covers. Fit type: Universal.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.38 Inches
Weight0.1 Pounds
Width3.81 Inches
Part Number82180
Model82180

2. Permatex

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

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

3. Permatex

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

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

4. Permatex

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3 oz. Tube, Permatex 80022 Sensor-Safe Blue RTV Silicone Gasket Maker

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Permatex #ad - Effectively replaces almost any cut gasket. Temperature range of -65 degrees fahrenheit to 500 degrees fahrenheit intermittent. Suggested applications: Valve covers, oil pans, timing covers, water pumps, thermostat housings, transmission pans. Coats pre-cut gaskets to increase reliability without fouling oxygen sensors. Makes reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.25 Inches
Weight0.1 Pounds
Width3.81 Inches
Part Number80022
Model80022
WarrantyLimited Manufacturer

5. J-B Weld

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3 oz., J-B Weld 32325 Ultimate Copper High Temperature RTV Silicone Gasket Maker and Sealant, Copper

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J-B Weld #ad - Choose the product pros trust for your project. It will not shrink or crack, resists weathering and is sensor safe. Do it yourself: big or small, you can diy it with j-b. Versatile & dependable: ideal for automotive, metal, timing covers, oil pans, water pumps, differential covers, exhaust manifolds, drive housings and oven doors.

Jb weld delivers the legendary performance of the World's Strongest Bond. 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.

Flash point: 300000 degrees_celsius. Our heavy duty adhesives repair & restore it right the first time. Easy to use: curing when the product is exposed to the moisture in air, it forms a tough, waterproof seal on most surfaces. What the professionals use: builders, mechanics & repair pros know our products bond strong to a variety of surfaces in even the toughest environments.
BrandJ-B Weld #ad
ManufacturerJBWeld #ad
Height6 Inches
Length6 Inches
Weight0.09 Pounds
Width9 Inches
Part Number32325
Model32325
WarrantyNo Warranty

6. Permatex

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Permatex 85224 The Right Stuff Gasket Maker, 7.5 oz. PowerBead Can

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Permatex #ad - Temperature range: -75°f to 450°f -59°c to 232°c continuous, 500°F 260°C intermittent. Suggested applications: automotive, gearbox covers, valve covers, heavy duty, pumps, oil pans, thermostat housings, and marine gaskets, water pumps.

Formulated to meet or exceed performance standards for long-term sealability, durability and handling; this material is used on OEM production lines and specified in their service parts programs. Seals instantly, pre-cut, forming a reliable, paper, long lasting elastomeric rubber gasket; eliminates the need for pre-formed, 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. Flash point: 93. 8889 degrees_celsius.
BrandPermatex #ad
ManufacturerPermatex #ad
Height10.06 Inches
Length2.19 Inches
Weight0.7 Pounds
Width2.19 Inches
Part Number85224
Model85224
WarrantyLimited Manufacturer

7. Permatex

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Permatex 81182 Gear Oil RTV Gasket Maker, 3 oz.

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Permatex #ad - Seeks and seals leak paths that cut gaskets cannot. Specially formulated to withstand the harsh gear oil environment found in differentials and transfer cases. Specialty silicone does not break down against gear oil friction modifiers. Sensor safe, non-toxic, and non-flammable. Tested to original Equipment Manufacturer OEM specifications to ensure complete sealing power.
BrandPermatex #ad
ManufacturerPermatex #ad
Height1.4 Inches
Length7.9 Inches
Weight0.25 Pounds
Width3.8 Inches
Part Number81182
Model81182

8. J-B Weld

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10.3 oz., J-B Weld 31914 Red High Temperature RTV Silicone Gasket Maker and Sealant

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J-B Weld #ad - 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. Jb weld delivers the legendary performance of the World's Strongest Bond. What the professionals use: builders, mechanics & repair pros know our products bond strong to a variety of surfaces in even the toughest environments.

Versatile & dependable: ideal for automotive, differential covers, timing covers, water pumps, oil pans, exhaust manifolds, metal, drive housings and oven doors. Our heavy duty adhesives repair & restore it right the first time. It will not shrink or crack, resists weathering and is sensor safe. Choose the product pros trust for your project.
BrandJ-B Weld #ad
ManufacturerJBWeld #ad
Height5 Inches
Length11 Inches
Width9 Inches
Part Number31914
Model31914

9. Permatex

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Permatex 22071 Water Pump and Thermostat RTV Silicone Gasket, 0.5 oz., 0.5 Ounce

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Permatex #ad - Suggested applications: Water pump and thermostat housings. Sensor-safe, noncorrosive RTV silicone gasket material formulated specifically for water pumps and thermostat housings. Highest water-glycol resistance available in an RTV silicone. Temperature range: -65°f to 500°f -54°C to 260°C intermittent. Superior adhesion and flexibility; can be used as a gasket maker or dressing.
BrandPermatex #ad
ManufacturerPermatex #ad
Height6.5 Inches
Length0.63 Inches
Weight0.05 Pounds
Width2.81 Inches
Part Number22071
Model22071

10. Permatex

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Permatex 27037 Optimum Black Gasket Maker 3.35 oz, 1 Pack

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Permatex #ad - Meets performance specs of oe silicone gaskets. 60% more flexible than Ultra Black. Temperature range: -65 degreef to 500 DegreeF -54 DegreeC to 260 DegreeC intermittent. Sensor-safe, low odor, and non-corrosive. Includes 2 nozzles. 15% stronger than Ultra Black. Resistant to Auto & shop fluids and vibration. Retains highest flexibility with maximum oil resistance through use of a patented adhesion system.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.25 Inches
Weight0.25 Pounds
Width3.81 Inches
Part Number27037
Model27037