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Clear coating lifted the paint on truck frame



(-----) 2004

I had my truck frame sand blasted and then I primed it using an epoxy primer. I followed that with 3 coats of tremclad black gloss rust paint. I seen tremclad clear coat and it said that it works on rust paint so I though it would work perfect to protect my paint. I waited the 72 hours it suggested and sprayed on the clear coat. I checked on it an hour after I sprayed it on and it looked great but 3 hours later when I checked on it again it lifted off a lot of the paint. It bubbled up all the paint but didn't touch the primer. What should I do now, are the parts that didn't lift good, I was thinking about using a hand wire brush to take off the bad parts and repaint it. Also what went wrong?

Thanks,

Kyle Kaban
student - Yorkton, Sask, Canada
^


2004

The Tremclad paint is a long oil alkyd. This type of alkyd takes a long time to dry. When you clear coated over it the solvent from the clear swelled the not completely cured alkyd and some of it lifted off.

Ronald Zeeman
Coil coating - Brampton
^

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