US Part Number: 80333
Canada Part Number: 90334

Permatex® Muffler & Tailpipe Putty

Permanently repairs holes and leaks in exhaust systems. Seals out fumes at temperatures up to 2000°F (1000°C). Safe for catalytic converters. 2-pouch bonus pack.


Suggested Applications: Mufflers, tailpipes, joints, and catalytic converters.

US Item # CDN Item # Container Size Case
80333903344 oz. net wt. (2 foil pouches, carded) 12
US Item # Tech Doc File
80333 TDS  SDS  Canada part # SDS


NOTE: Exhaust system must be cool before applying putty.

  1. Wire brush or sand to remove loose rust and dirt. Repair area must be clean.
  2. Knead pouches before opening.
  3. Apply with putty knife,pressing the putty into hole or leak.
  4. Let car idle for 10 minutes to speed up dry time. If possible, let car stand overnight before driving. DO NOT RACE MOTOR BEFORE PUTTY HARDENS COMPLETELY.
  5. For larger holes,reinforce repair area with wire screen before applying putty. For a lasting repair, use Permatex® Muffler and Tailpipe Bandage over puttied areas.
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