Onion Board for Bodyfiller Repair Mixing Sheets x 100  Clean - Reduce the risk of dust, muck and other contaminates being mixed into the bodyfiller. Quick - No messing around looking for clean board to mix on. Simple - Mix the filler, use it and the simply tear off the sheet and discard it. Then you are ready for the next sheet. Unique - Features a specially formatted coating that won't soak up the solvent in the filler