Top 9 RTV Sealant High Temp – Gasket Sealers

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1. J-B Weld

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Red, J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant, 3 oz.

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J-B Weld #ad - Hi temp red silicone gasket maker & sealant: is an rtv room temperature Vulcanized Silicone gasketing material, designed for use in mechanical assemblies where the existence of higher, continuous temperatures up to 550º F or 650º F intermittent might exist.

Easy to use: curing when the product is exposed to the moisture in air, it forms a tough, waterproof seal on most surfaces. Our heavy duty adhesives repair & restore it right the first time. Versatile & dependable: ideal for automotive, water pumps, oil pans, metal, exhaust manifolds, differential covers, timing covers, drive housings and oven doors. It will not shrink or crack, resists weathering and is sensor safe.

With each product we innovate, we continue to provide the world's strongest bond for your projects. Jb weld delivers the legendary performance of the World's Strongest Bond. Count on us: for more than 40 years, our products have earned a loyal following from people who take pride in their work. Do it yourself: big or small, you can diy it with j-b.
BrandJ-B Weld #ad
ManufacturerJBWeld #ad
Height6.3 Inches
Length1.97 Inches
Weight0.2 Pounds
Width1.57 Inches
Part Number31314
Model31314
WarrantyNo Warranty

2. 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. 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.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.25 Inches
Weight0.2 Pounds
Width3.81 Inches
Part Number81160
Model81160
WarrantyManufacturer Warranty

3. 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 - 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.

Choose the product pros trust for your project. What the professionals use: builders, mechanics & repair pros know our products bond strong to a variety of surfaces in even the toughest environments. Easy to use: curing when the product is exposed to the moisture in air, waterproof seal on most surfaces. Our heavy duty adhesives repair & restore it right the first time. It will not shrink or crack, it forms a tough, resists weathering and is sensor safe.

Jb weld delivers the legendary performance of the World's Strongest Bond. Do it yourself: big or small, you can diy it with j-b. Versatile & dependable: ideal for automotive, timing covers, water pumps, metal, differential covers, exhaust manifolds, oil pans, drive housings and oven doors.
BrandJ-B Weld #ad
ManufacturerJBWeld #ad
Height5 Inches
Length10.98 Inches
Weight0.64 Pounds
Width9.02 Inches
Part Number31914
Model31914

4. Permatex

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For High Flex And Oil Resistant Applications 3.35oz Tube, Sensor Safe And Non-Corrosive, Permatex 82180 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker

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Permatex #ad - Long-lasting and durable - ultra black resists aging, weathering and thermal cycling Without Hardening, Shrinking Or Cracking. Non-corrosive formula - ultra black maximum oil resistance silicone Gasket Maker Is Sensor-safe; With A Non-Corrosive Formula Designed For Superior Adhesion To Oily Surfaces And Long Term Durability.

With a temperature range of -65°f to 500°f -54°c To 260°c Intermittent. Suggested applications: valve covers and valve guides, Oil Pans, Transmission Pans, Timing Gear Covers, Intake Manifold End Seals, And Differential Covers. High flexibility - ultra black silicone gasket maker retains high flexibility And Oil Resistant Properties And Can Be Used To Replace Pre Cut Gaskets Or Be Used As A Gasket Maker Or Gasket Sealant.

Superior resistance - powertrain fluids including engine oil, Transmission Fluid, Gear Lube And Coolants To Keep Your Application Locked In Place To Create A Strong Long Lasting Seal.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.38 Inches
Weight0.1 Pounds
Width3.81 Inches
Part Number82180
Model82180
WarrantyManufacturer

5. Loctite

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Loctite 37467 Black RTV 598 High Performance Silicone. 80 ml.

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Loctite #ad - Package dimensions : 8. 0 l x 1. 45 h x 3. 81 w inches. Package weight : 0310009 pounds. Color : Black. Made in China.
BrandLoctite #ad
ManufacturerLoctite #ad
Height1 Inches
Length8 Inches
Weight0.25 Pounds
Width4 Inches
Part NumberLOC491985
ModelLOC491985

6. Permatex

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11 oz. Pack of 12, Permatex 81409-12PK High-Temp Red RTV Silicone Gasket

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Permatex #ad - Temperature range of -65F to 650F intermittent. Suggested applications: Valve covers, water pumps, oil pans, thermostat housings, timing covers, transmission pans. 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. Formulated for hi-temp applications, or heavy-duty use.
BrandPermatex #ad
ManufacturerPermatex #ad
Height11.9 Inches
Length2.3 Inches
Weight0.69 Pounds
Width2.07 Inches
Part Number81409-12PK
Model81409-12PK

7. KRAKEN BOND

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RTV Gasket Maker, High Temp Silicone Sealant, 100% Silicone Flexible Gap Filler | 1 Pack, 10.1 Oz., Red Waterproof Gasket Sealer for Automotive, Kraken Bond High Heat Silicone Sealant

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KRAKEN BOND #ad - No cracking, shrinking, or brittleness. Both diyers and professionals favor red high temp silicone because it is a flexible sealer and long-lasting adhesive that dries slowly. Kraken bond gasket maker is an extremely strong, long-lasting adhesive that can withstand high temperatures and is a high heat silicone sealant.

These silicone adhesives are essentially unaffected by weather extremes, temperature changes, or aging. Excellent heat resistance after curing at temperatures ranging from 482°F permanently to 572°F temporarily. Rtv silicone gasket maker provides waterproof performance in most circumstances.

After curing, this gasket sealant is resistant to mechanical enforcement. Our 100% silicone gasket sealer is a gap filler that is used for waterproof sealing and bonding in stoves, gaskets in pumps, automobiles, chimneys, motors, and other places where parts must perform at high temperatures and heat.
BrandKRAKEN BOND #ad
ManufacturerKraken Bond #ad
Height8.5 Inches
Length2 Inches
Weight0.81 Pounds
Width2 Inches
Part NumberKraken Bond Gasket Maker 1 Pack
ModelKraken Bond Gasket Maker 1 Pack

8. Loctite

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190 ml -2093362, Loctite 598 RTV High Performance Silicone, Black

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Loctite #ad - With primer, sets in 15m – 2hrs. Well suited for automotive and other applications such as water pumps, transmission case covers, transaxle casings, transmission pans, thermostat housings, O-ring replacement.

Adds flexibility to rigid machined flanges that move in service & eliminates the need for preformed, paper, rubber & cork gaskets. Convenient curing. Loctite 515 is designed for close fitting flanged parts with gaps up to 025 mm 001 in. Reliable adhesion. Motor oils, corrosion protection oils, cutting fluids. Flexes with movement. Easily removable. Without primer, sets in 1-12hrs. Stainless steel, aluminum, plated surfaces & tolerates minor contamination by oils e. G. Works on all metals, including passive substrates e. G.
BrandLoctite #ad
ManufacturerLoctite #ad
Height1.75 Inches
Length11 Inches
Weight0.77 Pounds
Width1.75 Inches
Part Number2093362
Model2093362

9. Permatex

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Permatex 81160-12PK High-Temp Red RTV Silicone Gasket, 3 oz. Pack of 12

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Permatex #ad - Suggested applications: Valve covers, water pumps, timing covers, oil pans, thermostat housings, transmission pans. Temperature range of -65F to 650F intermittent. 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.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8.5 Inches
Length9 Inches
Weight2.9 Pounds
Width4 Inches
Part Number81160-12PK
Model81160-12PK