How to Reseal a Leak in a Tire Rim

Written by elyse gibbons
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How to Reseal a Leak in a Tire Rim
Leaks in a tire rim are most likely caused by the type of alloy material used on most cars. (truck rim image by Tammy Mobley from

A leak in a tire is annoying and dangerous. Steel rims leak air through the rim and the tire, and alloy rims cause a leak through pores found in cast-aluminium alloy. The holes can be sealed and repaired, but replacing the rims or tires is recommended if the leak persists.

Skill level:

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Things you need

  • Grease pencil
  • 80-grit sandpaper
  • Carburettor cleaner
  • Silicone gasket sealant

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  1. 1

    Inflate the tire to 18.1 Kilogram per square inch.

  2. 2

    Demount the tire from the rim.

  3. 3

    Place the damaged rim in a large tub of water and watch for bubbles indicating the origin of the leak.

  4. 4

    Mark the leaks with a grease pencil and take the rim out of the water.

  5. 5

    Sand the leaking areas with 80-grit sandpaper, then brush away any debris or remnants.

  6. 6

    Dab the sanded leaks with a towel and clean the leaks with carburettor cleaner.

  7. 7

    Cover the area thoroughly with a silicone gasket sealant.

  8. 8

    Let the sealed rim dry overnight, then remount it onto the tire.

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