Do you need special sandpaper for wet sanding?
You won’t want to use regular sandpaper sheets for wet sanding. The abrasive grit on regular sandpaper loads up with the material being sanded. This, plus the grains, will usually cause more scratches on the material. You’ll want to use sandpaper that’s made specifically for this method.
What grit sandpaper do I use to wet-sand a car?
Jason recommends beginning with 1,000-grit sandpaper. Coarser paper works faster but you’ll eat up the time saved when it comes time to eliminate the sanding scratches. Finer paper, say 1,500, leaves finer sanding marks that are easier to remove but the job takes a lot longer.
What do you wet-sand clear coat with?
The clear coat should be wet-sanded with 400 grit sandpaper. This is to replace the orange peel with finer and finer scratches, which will eventually be filled in with polish. The sanding steps help diminish the clear coat until the entire surface is smooth.