Paint prep...?
Which is the best way to prep a truck for painting? Should I strip it to bare metal, etch it, body filler? Or should i sand it smooth, seal it, etch bare metal, filler?
How did you guys prep your trucks?
Thanks.
Sand it smooth, at the same time have all the body work done, primed, spot puttied or glazed. Seal it if you are not sure what the paint layer below is, many times I just prep very well, and wet sand very well and avoid sealing. It all depends on what I am doing. Then prime it, guide coat it, block sand it, prime and sand some more, repeat until you hate the vehicle and swear you will never do this again, then sand some more. Then you are ready for paint, clear, then more sanding & buffing then hand glazing. LOL
It all depends on condition and what you are doing if you should strip or not. If it something you want to keep a long time and your not sure what repairs or how well they were done are hiding under there, paint is peeling off, or just too many layers of paint, then you probably should strip and start fresh. If its a good catalyzed paint in good shape, then really wouldn't need to. If you are using a 2k primer, no need to really seal, but sometimes its smart to to get the car all one color that will help with coverage of the paint. Or if you are painting the same color, try to use a primer that will be easy to get hiding over.
Does it matter what kind of paint there is on the truck? Can you use any type of paint to cover existing paint?
The 2K (2-catalyst) primers are excellent at adhesion to a variety of old substrate. I am using the NASON (dupont) paint system. Their primers and sealers are reasonable, and they have nice metallic OEM finishes.
If you happen to sand to bare metal, use a "self-etching primer" on those bare spots prior to the 2K primer. I am using rattle can etch primer. 1 coat is plenty.
Good luck!!




