Have any of you painted your muffler and exhaust pipes? I got replacement ones to install and thought that if the right primer and paint were used, I could prevent or at least slow down the inevitable corrosion. And of course, painting them before installation would be the best time to do so.

Thoughts?

This is one set of primer and paint I found:
https://www.kbs-coatings.com/2020-05-17-xtc.html

 

Many moons ago when I was in the Navy, we used a high temp paint that was silver in color that had aluminum (I believe) in the paint. We used it without primer on all types of piping and other surfaces down in the fireroom, to include the boilers inner casings, not to be confused with the fire box, and exteriors. Even used it on steam pipes underneath the lagging. I don't recall every have any rust where we used it. Other piping that was not hot we used regular paint with primer would tend to rust after a while. Had to replace the fuel oil transfer pipes on one ship in both main spaces. That was done during a yard period.

I don't know the commercial name of the paint, or if it still available, but there should be something similar available somewhere. The biggest problem with the paint was that it took days to dry to the touch. If you got it on yourself, it didn't come off easy and you would look like the tin man from the Wizzard of Oz.

 

Thanks for the ideas.

The failure on the one current on the truck was rust under the band that had the muffler support and the weld at the exit of the muffler. The latter was partly due to me through a very large pothole too fast. The exhaust pipe was getting pretty bad too.

 

High temperature paint is available for exhaust manifolds. Otherwise, barbeque paint might be fine.