Although you can use 300 to 400 grit or higher sandpaper for wet sanding, you should probably use 1,000 to 2,000 grit to achieve the best results.
Be sure to keep the paper wet during the entire process of sanding, and never allow the paper to become dry.
What is 320 grit sandpaper used for?
180 to 220 Grit Sandpaper: Finer grit sandpaper is great for removing the scratches left by coarser grits on unfinished wood and for lightly sanding between coats of paint. 320 to 400 Grit Sandpaper: Very fine grit sandpaper is used for light sanding between coats of finish and to sand metal and other hard surfaces.
What do you use to sand a car?
Auto Painting : How to Sand a Car for Paint –
What grit do you use to sand clear coat?
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.
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