Product ReviewsPermatex 80335 Muffler and Tailpipe Sealer 3 Oz B53

Really good for different purpose.

I use this to repair the seals on my cast iron wood stove . Where the stack attaches to the main body of the stove. For 35 years I was not able to effect a really good seal. Now I placed some some of this Permatex 80355 Muffler and Tailpipe Sealer in place and then tightened down the flange bolts. Made a perfect seal. Since there is no back pressure I expect this to last for a very long time. I then went ahead and lifted up the top plate of the stove (cast iron also-very heavy!!) and cleaned the mating surfaces around the edges since there were leaks in several places(mating surfaces are about 3/8" wide). Applied Permatex 80355 to the surfaces that needed sealing and carefully lowered the top back in place. Tightened the 1/4" 20 bolts . Same results, a perfect seal with no leaks!!. Again, I expect this to last a very long time since the temperature never gets higher then 700 degrees F with zero back pressure. Over the years I have used all kinds of high temperature stove cements and sealers with poor results. This is the first product that I have used that has been outstanding even though it was not used for the intended purpose.Read full review...

Verified purchase:  Yes | Condition: new | Sold by: multibrandsusa

Permatex Muffler & Tailpipe Sealer

Very good poduct for the price. Made in U.S.A., easy to use, just like sqeezing out toothpaste.
Filled the small hole I had in an exhaust pipe, cured quickly to a substance that really felt as hards
as metal, and the same color gray. I let it sit over night before driving, it didn't say that was necessary but I wanted to give it the benefit of more time before using the car. So far it's holding up, it's only been two weeks, hope it lasts a while. 9 months for even more I'll be saitisfied.Read full review...

Verified purchase:  Yes | Condition: new | Sold by: uni_mall

Perfect Exhaust Sealer

Product perfectly sealed a new exhaust pipe to my thirty-year-old truck exhaust. It was easy to apply and has worked without issue for several months now.

Verified purchase:  Yes | Condition: new | Sold by: maisfamily

IT WORKS! Follow directions.

I had an exhaust flange that kept blowing a gasket. Even a new replacement gasket would leak due to the warped flange. I followed the directions on this stuff and fixed the exhaust leak. I was going to replace my exhaust if this didn't work. IT WORKED!!! I saved much $$$$$$Read full review...

Verified purchase:  Yes | Condition: new | Sold by: uni_mall

Permatex muffler sealer

Had a rather large gap to fill in my wrangler exhaust. This stuff seems to work pretty good when compared to othe products I have tried.

Verified purchase:  Yes | Condition: new | Sold by: multibrandsusa

Awesome

Used it on my exhaust, just like the other guy got it wet, used a popsicle stick to add water and spread it around the pipe, worked just fine, no leaks, very nice, gotta make sure you roll the tube of sealer between your hands to mix it well. No big deal, the paste works well.Read full review...

Verified purchase:  Yes | Condition: new | Sold by: multibrandsusa

lightweight with great features

recomemnd buy this product

Verified purchase:  Yes | Condition: new | Sold by: uni_mall

easy fix for exhaust pipe problems

performs very well on my exhaust leak, and reduced the noise.

Verified purchase:  Yes | Condition: new | Sold by: cencalpartslingers

It works well

Repaired exhaust leak on a Honda motorcycle. So far has lasted over 2 years.

Verified purchase:  Yes | Condition: new | Sold by: shwea85

Gasket sealant

Used on a Willys CJ5 in conjunction with new gaskets. Works great in this application as the nuts are brass and thus torque is limited.