Getting my car ready for a respray. It's got singe stage urethane on there now, been there 20 years and, aside from running into stuff and a few bubbles and one wheel falling off, still looked perfect. Going with single stage black urethane again. I'm wondering if I should prime the whole car or just wet sand what's there?
I would say scuff it and shoot it. No need to do more work than necessary. As long as your prep work is good I feel the paint job will come out great. Sent from my iPhone using The H.A.M.B. mobile app
What is causing the bubbles? If the paint has started to fail in places it needs to be corrected before anything else or it will continue.
Prime necessary repairs and sand the rest. I like to block sand single stage. Use that like you would a primer to level it out some more. Plus it reduces the film thickness instead of adding to it like a full prime would do
Thanks guys. Some of the fibergl*** work done before me, and probably some I did years ago, had small pits and what not, that I think I filled with the old single part spot putty. The heat over the years probably caused the bubbles. The paint itself, which was high end PPG Concept, hasn't done anything wrong. Sounds like I'll just block the old urethane. It seems to sand real nicely.
I would just address the areas of concern and block sand it and shoot it. Sounds like you did a good prep job when you first painted it. You should get another 20 years out of the new paint job. Good luck and I can’t wait to see it when it’s done. Sent from my iPhone using The H.A.M.B. mobile app
Got a good portion wet sanded today. But it will be awhile, hand sanding was much easier 20 years ago! Stroke stroke, huf huf. And I'll be shooting it in the booth at my auto body cl*** at the jr. college which only happens on Mondays. I headed over there this morning but no cl***, f'ing spring break week. Last month it was Presidents week, then ski week. Kids got it made these days. I'm feeling much better about not priming the whole car, doesn't need it and the paint should adhere fine to the old surface.
Scuff and puff I need to add that to my body shop lingo. Been running around telling everyone to cave it and pave it ever since I heard that one.
I’m gonna give ya a tip... get some 400 a 3M soft da pad and an interface pad and go to town.. ya can block the problem areas first and than DA the whole thing. You’ll get that car nice and flat and the paint that’s on it will act as a guide coat. The 400 with the above pads will give the cut rate of 400, but leave the finish of 500...do it with primer all the time..same idea here. And I love PPG concept..just make sure ya sand and rub within the window..
Now you tell me.. Actually that is a great tip. I haven't sanded below the belt line yet, planning to do it at school on the lift (my knees are shot) and I don't think they would let me wet sand it. Plus it doesn't need blocking down there. Thanks!
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