Permatex - Fuel & Radiator Repair Kit - 9116

The Permatex Fuel & Radiator Repair Kit is a reliable two-component putty stick designed to seal h...

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Product Information

Full details

The Permatex Fuel & Radiator Repair Kit (9116) is designed for automotive DIYers and mechanics who need an immediate, reliable solution for sealing leaks in metal fuel tanks, radiators, and metal containers. The primary benefit is its ability to create a chemically resistant, permanent-style bond that cures quickly for emergency repairs, though it is important to note that this product is strictly for metal surfaces and will not adhere to plastic gas tanks.

All features

Model Part Number9116
BrandPermatex

Extended Product Information

FAQs

Can I use this on a plastic fuel tank?

No, this kit is specifically designed for metal surfaces and will not bond to plastic.

How long does it take to fully cure?

The compound cures at room temperature in approximately two hours.

Do I need special tools to mix the putty?

No, it is designed to be mixed by hand. Wear gloves during the mixing process.

Will this work on a high-pressure radiator hose?

No, this product is meant for rigid metal surfaces, not flexible rubber or plastic hoses.

Is it safe for direct contact with gasoline?

Yes, once cured, the compound is chemically resistant to fuel.

Troubleshooting

Putty is not adhering to the metal surface

Ensure the surface is completely free of oil, rust, and paint. Use sandpaper to roughen the metal before application.

The repair is leaking after curing

Check that the surface was thoroughly dry before application. If leaking persists, remove the patch, clean the area again, and re-apply.

Pros and Cons

Pros

  • Simple hand-kneading application requires no specialized tools
  • Excellent resistance to automotive chemicals and fuel
  • Provides a durable seal on metal substrates
  • Convenient kit format suitable for emergency toolboxes

Cons

  • Not compatible with plastic tanks or containers
  • Requires proper surface preparation for optimal bonding
  • Not suitable for high-pressure systems exceeding manufacturer limits

Setup, Compatibility & Care

To use this kit, start by cleaning the surface thoroughly with a degreaser or alcohol to ensure proper adhesion. Cut the required amount of putty from the stick and knead it by hand until it achieves a consistent color. Apply the compound to the area, ensuring you overlap the edges of the crack or hole. While it cures in two hours, avoid subjecting the area to extreme heat or high pressure until fully cured. This product is strictly for metal repairs. Do not attempt to use this on plastic tanks, as it will fail to bond correctly, leading to potential safety hazards.