Scotch-Brite™ SL Surface Conditioning Disc is a durable, aggressive non-woven abrasive disc for weld refinement applications. Our discs blend and finish consistently, often in one step.Perform efficient blending and finishing with Scotch-Brite™ SL Surface Conditioning Disc. Our SL Discs are durable, longer lasting and used for blending and finishing applications, without compromise to a great finish. They are fast cutting and can allow the combined weld blending and finishing steps more traditionally done by fibre discs followed by surface conditioning discs.