Permatex High Tack Spray-A-Gasket aerosol gasket adhesive, 9 oz — sensor-safe, -65°F to 500°F

Permatex 80065 High Tack Spray-A-Gasket is an aerosol gasket adhesive that sprays on a flexible, long-lasting tack to hold and seal gaskets through assembly and operating temperatures from -65°F to 500°F.

Designed for automotive and mechanical assembly, this fast-drying spray forms a non-brittle, highly tacky film that helps position cut gaskets and improves sealing without hardening. It’s formulated to tolerate common fluids and the wide temperature swings found under the hood, and it won’t interfere with many electronic sensors. Technicians and DIYers use it to speed assembly and keep gaskets aligned while bolting components together.

How does this spray help when installing gaskets?

The aerosol lays down a tacky coating that grabs gasket material and keeps it in place during mating and bolt-up, eliminating the need for cumbersome clamps or shims. Because the film stays flexible and doesn’t become brittle, it maintains the gasket’s conformity under pressure and vibration.

• Adheres rubber, cork, paper and composite gaskets for precise placement
• Dries quickly to a sticky, flexible film for faster assembly
• Holds cut gaskets so they won’t slip while tightening bolts

Will it resist fuels, oils and other common automotive fluids?

This formula is engineered to withstand exposure to gasoline, engine oil, antifreeze, axle lubricant, and several hydrocarbon fuels, maintaining its tack and sealing function after contact. That resistance helps prevent premature gasket failure in fluid-exposed locations.

• Resistant to gasoline, oil and antifreeze
• Compatible with kerosene, propane and butane exposure
• Suitable for areas where light fuel or lubricant contact occurs

Is it safe around sensors and what temperature range can it handle?

The product is formulated to be sensor-safe for many common automotive sensor types, reducing the risk of interference with electronic components when used as directed. It also tolerates a broad thermal range, so it remains functional in both cold starts and high-heat operating conditions.

• Sensor-safe formulation minimizes risk to electrical sensors
• Operates effectively from -65°F to 500°F (-54°C to 260°C)
• Maintains flexibility across temperature cycles

What parts and jobs is this best used for?

High Tack Spray-A-Gasket is well suited for assembly tasks where keeping a gasket aligned is crucial and where the gasket will face fluids or temperature extremes. It’s commonly chosen for valve covers, fuel-related components, and intake systems where a reliable, tacky hold aids installation.

• Ideal for valve covers, fuel pumps and carburetor gaskets
• Works on manifold gaskets and other engine sealing surfaces
• Good choice for repair shops, restoration projects, and weekend mechanics

Who is this for: This aerosol sealant fits professional mechanics, fleet technicians, and home garage enthusiasts who need a dependable, fast-curing adhesive to position and support gaskets during assembly. If you want a flexible, fluid-resistant tack that speeds installation and reduces rework on engine and fuel-system components, this product is a practical choice.