Top 10 Exhaust Gasket Sealant – Body Repair & Restoration Adhesives

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1. Permatex

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3 oz., Permatex 80335 Muffler and Tailpipe Sealer

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Permatex #ad - Waterproof, non-shrinking paste formula; shock resistant. Makes new installations more secure. Temperature range: up to 2000°F 1000°C. Seals holes and leaks in mufflers, tailpipes and around joints. Suggested applications: Mufflers, joints, tailpipes, and catalytic converters; exhaust system must be cool before applying.
BrandPermatex #ad
ManufacturerPermatex #ad
Height2 Inches
Length8 Inches
Weight0.2 Pounds
Width4 Inches
Part Number80335
Model80335
WarrantyManufacturer Warranty

2. Permatex

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Permatex 27038 Optimum Red High Temperature Gasket Maker 3.35 oz

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Permatex #ad - Oem specified, sensor-safe, low odor, non-corrosive. Top job applications: header, slip-fit exhaust parts, manifold, turbocharge and withstands up to 750°F 399°C intermittent. Non-flammable, non-toxic. Can be used as a gasket maker or dressing and meets performance specs of OE silicone gaskets. Maximum temperature performance.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.25 Inches
Weight0.25 Pounds
Width3.81 Inches
Part Number27038
Model27038

3. 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. Most advanced, high temp RTV silicone gasket available. Sensor-safe, low odor, and non-corrosive with superior adhesion. Suggested applications: Exhaust manifolds/headers, oil pans, water pumps, valve covers, timing covers, thermostat housings. Three times more oil resistant than conventional silicones; eight times more flexible than cut gaskets.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.38 Inches
Weight0.2 Pounds
Width3.81 Inches
Part Number81878
Model81878
WarrantyManufacturer

4. Permatex

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1 Pack, Permatex 27036 Optimum Grey Gasket Maker 3.35 oz

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Permatex #ad - 40% higher Temp. Includes 2 nozzles. Sensor-safe, low odor, and non-corrosive. Maximum vibration resistance, cooling fluids, with outstanding resistance to oils, and shop fluids. Maximum temperature resistance: -65f to 700f-54 DegreeC to 371 DegreeC intermittent. 15% more flexible than Ultra grey. Than Ultra grey. The most advanced, high Temp RTV silicone gasket maker Available.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.25 Inches
Weight0.25 Pounds
Width3.81 Inches
Part Number27036
Model27036
WarrantyManufacturer Warranty

5. Loctite

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9-oz., Loctite 502911 Copper Gasket High Temperature Adhesive Sealant Aerosol Can

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Loctite #ad - Typical applications include cylinder head gaskets, carburetor gaskets, exhaust manifold gaskets and other high temperature applications. Seals instantly. Prevents gasket burnout and improves heat transfer. Fast-drying, metallic copper sealant that helps dissipate heat. Resists all types of automotive fluids, especially gasoline.
BrandLoctite #ad
ManufacturerLoctite #ad
Height6.4 Inches
Length2.6 Inches
Weight0.77 Pounds
Width2.6 Inches
Part Number502911
Model502911

6. Remflex

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Remflex 8006 3" Exhaust Pipe Flange Gasket

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Remflex #ad - There are no rubber binders or composite materials in Remflex exhaust gaskets so they will not shrink or harden due to time or temperature eliminating the need to go back and continually retighten your flange bolts.

3" pipe; universal 3" pipe flange, 4-1/8" Bolt Hole Spacing, 2 bolt Holes, 1 each. Remflex exhaust gaskets come in a standard 1/8 inch thickness and are designed to crush 50 percent allowing them to fill any pits or gaps in the flange surface up to 1/16 inch. Heating and cooling of the exhaust system causes header and manifold flanges to warp resulting in gaps between the head and header which Remflex exhaust gaskets seal completely due to the thickness and compressibility of the 100 percent flexible graphite.

The aluminum cylinder head and steel header or manifold combination are configurations that readily cause gap issues in the mating flanges due to contraction and expansion of the dissimilar materials; Remflex exhaust gaskets fill those gaps permanently.
BrandRemflex #ad
ManufacturerRemflex #ad
Height6 Inches
Length6 Inches
Weight0.05 Pounds
Width6 Inches
Part Number8006
Model8006

7. Remflex

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Remflex 6006 2-1/4" Exhaust Pipe Flange Gasket

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Remflex #ad - Heating and cooling of the exhaust system causes header and manifold flanges to warp resulting in gaps between the head and header which Remflex exhaust gaskets seal completely due to the thickness and compressibility of the 100 percent flexible graphite.

The aluminum cylinder head and steel header or manifold combination are configurations that readily cause gap issues in the mating flanges due to contraction and expansion of the dissimilar materials; Remflex exhaust gaskets fill those gaps permanently. See part number 6005 for 2-1/2" pipe flange; mopar exhaust collector Gasket 2-1/4" Pipe, 2 Bolt Holes, 3-1/2" Bolt Hole Spacing, 2/set.

Remflex exhaust gaskets come in a standard 1/8 inch thickness and are designed to crush 50 percent allowing them to fill any pits or gaps in the flange surface up to 1/16 inch. There are no rubber binders or composite materials in Remflex exhaust gaskets so they will not shrink or harden due to time or temperature eliminating the need to go back and continually retighten your flange bolts.
BrandRemflex #ad
ManufacturerRemflex #ad
Height0.45 Inches
Length6.6 Inches
Weight0.14 Pounds
Width11 Inches
Part Number6006
Model6006

8. Permatex

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9 oz. net Aerosol Can, Permatex 80697 Copper Spray-A-Gasket Hi-Temp Adhesive Sealant

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Permatex #ad - Suggested applications: Cylinder head gaskets, exhaust manifold gaskets, and other high temperature applications. Fast-drying, metallic copper spray adhesive/sealant helps to dissipate heat, prevents gasket burnout, and improves heat transfer. Fills minor surface irregularities, fills hot spots and surface imperfections. Temperature range: -50°f to 500°f -45°C to 260°C. Resists all types of automotive fluids, especially gasoline.
BrandPermatex #ad
ManufacturerPermatex #ad
Height6.38 Inches
Length2.63 Inches
Weight0.8 Pounds
Width2.63 Inches
Part Number80697
Model80697

9. 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. Suggested applications: Valve covers, water pumps, oil pans, thermostat housings, timing covers, transmission pans. Temperature range of -65F to 650F intermittent. Makes reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.25 Inches
Weight0.2 Pounds
Width3.81 Inches
Part Number81160
Model81160
WarrantyLimited Manufacturer

10. 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 - Fit type: Universal. 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. Sensor-safe, non-corrosive formula designed for superior adhesion to oily surfaces and long term durability. 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. Suggested applications: Valve covers, timing covers, oil pans, intake manifold end seals, and differential covers.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.38 Inches
Weight0.1 Pounds
Width3.81 Inches
Part Number82180
Model82180