Permatex Aviation Form-A-Gasket No.3 Sealant 118ml

Permatex Aviation Form-A-Gasket No.3 Sealant is a professional-grade, slow-drying and non-hardening gasket dressing designed for automotive, aviation and marine applications. It provides a reliable seal on close-fitting machined surfaces, solid gaskets, threaded fittings and hose connections while remaining flexible for easy disassembly. Resistant to gasoline, oil and grease with a working temperature range of -54C to 204C.

Why Choose Permatex Aviation Form-A-Gasket?

Non-hardening formula for easy future disassembly

Resistant to fuel, oil and grease

Suitable for automotive, marine and aviation applications

Helps prevent leaks and gasket failures

Ideal for threaded connections and machined surfaces

Brush-top applicator for precise application

Long-lasting flexible seal

Signs You May Need Gasket Sealant

• Oil leaks around gasket surfaces
• Fuel seepage from threaded fittings
• Coolant leaks from mating surfaces
• Repeated gasket failures
• Minor surface imperfections causing leaks
• Engine assembly requiring additional sealing protection

Frequently Asked Questions

Can this be used on engine gaskets?

Yes, it is suitable for most automotive engine gasket applications.

Is it resistant to fuel and oil?

Yes, it resists gasoline, oil and grease.

Does it harden after curing?

No, it remains non-hardening and flexible.

Can it be used on threaded fittings?

Yes, it is commonly used on threaded connections and machined surfaces.