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I am no pro painter or anything (fact is I dislike painting) but I have a lot of painting failures to draw on and I have found that the pre-heat lessens the moisture. Paint dries from the inside out and moisture causes a lot of problems. I have also found that one cannot clean the area to be painted too much! Too little, but not too much. For the Record, I am a totally comitted POR15 fan and use it whenever and whereever I can. POR15 also makes engine paints and their flyer is free. All of their stuff I have used works. It ain't cheap, though. Ray[/B][/QUOTE]

The good stuff is never cheap, but well worth not having to do it again. BTW, where can I get POR15? I need it for my 49 Dodge.