Coated Sanding Discs are recommended for applications requiring heavy stock removal. Coated sanding discs can be used on all metals and are commonly used for general metalworking applications.
Non-Woven Discs are recommended for applications where heavy stock removal is not required. Non-woven discs are commonly used to finish surfaces where coated abrasives leave off. Non-woven discs are also non-conductive, washable, do not rust and resist loading.