400 Grit Sanding Discs

Serious Grit 400 grit wet/dry sanding discs are premium film-backed velcro discs designed to fit most 5" and 6" random orbital sanders and polishers with hook and loop backing pads. Our woodturning discs fit any 2" or 3" Velcro sanding pad. This is a super fine grit, used for working up to a smooth, polished finish on wood, metal, paint, or resin surfaces. Cabinet makers and professional finishers use 400 grit sandpaper for wet sanding between coats of paint or stain on cabinetry / doors and built-ins. It helps with flattening the finish and prepping for higher grits with final coats of paint, stain, or other finish work.  Woodworkers also use 400 grit sanding discs when working up toward an ultra smooth finish on wood or when sanding epoxy resin projects. Because Serious Grit uses a film substrate material in our discs (as opposed to paper), these can be used wet in order to reduce clogging and improve finish quality in paint or other projects where a gloss finish is desired. What ma