Watch a detailed illustration by Network Auto Body 'The Body Shop to the Stars' in Hollywood, California, as to why Color Sand and Polish is a necessary procedure and should be covered and paid for by your Insurance company! How to get a high quality paint finish better than factory paint jobs. Color Sand and Buff is required to restore your vehicle to pre-accident condition. During refinishing, foreign particles in the air from the undercarriage, wheel well’s, jambs, and engine compartment, make their way to the surface of the fresh paint. It is therefore necessary to remove what we refer to as 'nibs' from the paint surface.