9x11 No Load SILICON CARBIDE 320 Grit Sanding Paper

Grayish/white when treated with zinc stearate (like soap) which reduces clogging.

Harder, sharper, and more friable than A.O. It fragments quickly thus reducing the potential for loading and exposing new sharp edges. Commonly used on hard materials like glass or metal.

Knife makers use fine S.C. belts for sharpening.

Wood workers use white, no-load sheets for fine finishing.