Quote Originally Posted by brianrupnow
I haven't tried it myself, but I have read that others have tried it with good results, on glass cars. There is some controversy about using it as a sound deadner or steel cars, because some people feels that it will hold moisture (from splashed up rainwater on the road) against the underside of steel cars and cause rust.
I know in the fishing community they rave about it for coating the inside of aluminum boats.
Not only does it help seal loose rivets, it provides a strong non slip surface with amazing sound deading qualities.
So my guess is that if it works for boats and doesn't let water in, it should have no problem keeping water out!(yogi berra speak)
The key is to rough up the surface so it can get a good bite.