Use Avalos A211/A213 coarse-grit paper sheets for dry, general-purpose hand, board or block sanding fiberglass, aluminum, brass, bronze, titanium, super alloys, hard and soft carbon steels, 300 Series stainless steels and hard and softwoods. Featuring an open coating and crafted with a P-graded aluminum oxide grain, these sheets are an excellent choice for moderate-to-heavy material removal. With premium A213 C-weight or A211 D-weight backing, these sheets hold up well over extended use, even during aggressive stock removal on hardwood, metal and composites.