Permatex 80333 Muffler and Tailpipe Putty - 4 oz. Review

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(More customer reviews)This product worked very well. I had a about a 1/4 inch wide, 1 inch long hole in a still solid exhaust pipe. I would not expect any product to permanently seal a hole that large without being somewhat supported, so I didn't try. After filling the hole with the putty, I put two hose clamps [band type] side by side over the hole area and tightened them down while the putty was still wet. I started the engine and let it idle for 20 minutes to cure and harden the putty [idle only, don't step on the throttle]. I drove off the next morning to work and it is still leak free over one year later. I'm very pleased.
Thanks,
Mike

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