3M™ Green Corps™ file abrasive sheets deliver high performance results in automotive body shops and garages. File sheets are made with Green Corps™ abrasives, consisting of a blend of minerals that provide increased abrasive life and a faster cut rate. Green Corps™ abrasives are built on D weight backing to make them extremely durable for sanding paint, metal and fiberglass. Simply apply these sheets to a hand or air file board for convenient use.