418036 Silicon Carbide 12″ x 18″ Floor Sanding Sheets, 36 Grit (20 pack). Mercer Industries floor sanding sheets are made with 100% sharp silicon carbide grain. Available in grits 20, 36, 60, 80 and 100. The 12″ x 18″ sheets fit square buff machines as well as Clarke, deva, and Silver line. These sheets have enough grit on the backside to adhere to a sanding pad. Made with high quality resins and grains for excellent durability and life. Use to repair and refinish wood floors. 20 – Precut sheets for any 12″ x 18″ buffer – square buff, Clarke, deva, silver line. For hardwood or concrete. Silicon Carbide grain gives a consistent performance at a competitive price. Extra Heavy weight paper backing provides extra durability, high tear resistance. Backside of sheet has enough grain on it to adhere to a sanding pad. Available in grits 20 through 100 for all your sanding needs. Product Dimensions: 18″L x 12″W. Product Dimensions:? 18″L x 12″W. Grit Material:? Silicon Carbide. Unit Count:? 20.0 Count. Global Trade Identification Number:? Item Weight:? 4 ounces. Country of Origin:? USA. Item model number:? 418036. Item Package Quantity:? 1. Included Components:? Floor Sanding Sheets, 12″ x 18″, Silicon Carbide, Grit 36, 20-Pack. Date First Available: May 11, 2018.