Damp sanding is done on substrates that is E-coat, primer, and painted surfaces in Automotive original Equipment Manufacturer.

Damp sanding is the best and cleanest system to use for sanding many different types of substrates. When sanding of automotive substrates such as E-coat or primer. The system utilizes enough water to keep the abrasive clean but without significant runoff. After you apply the disc on the back up pad spray the disc with a water to make it moist with light-to-medium pressure. Do not over sand. Finish with light pressure, blending the repair area into the existing panel. Remove the damp sanding residue with the help of sumax micro fibre pad or cloth.