A Note on the Factory Paint

I have done this same technique with the Duplicolor on several headers and other exhaust components. It is really great stuff. It even held up on a Toyota Supra turbo down pipe that I fabricated.

While this paint is marvelous and generally holds up great, I have had two failures while using it. BOTH TIMES the failure occured on headers that I DID NOT have the factory black paint completely stripped off of before applying the Duplicolor. The first one I did a scuff and shoot as in this article and the Duplicolor came off completely (with the factory black paint under it). The other time I used an "Aircraft" type stripper, and got 95% of the factory paint off, but there were still areas where little strips of the little paint remained. Guess what happened to the Duplicolor? It came off everywhere where I couldn't get off all the factory paint.