4. What kind of sandpaper should be used for getting a car ready for paint?
(This question was asked fr0m a video demonstrating how to final sand by hand wet sanding.
Your Answer: A. Use the finest sanpaper possible, as the point is to get the surface as smooth as you can. 1500 to 2000 grit wet/dry sandpaper should work fine.
That is not correct. The purpose is to rough up the surface to provide adhesion for the paint to stick to. The most productive and effective method is to use a grit that will achieve this with the least amount of effort. And without the sand scratches showing through the painted surface.
Here is how I answered the question: Wet/Dry 400-600 grit. I prefer 400 for wet sanding by hand. I prefer 400 when sanding by hand.
Agree…Disagree? Leave us a comment.