12 X 12 Disposable Paper Mixing Board What are CLEAN SHEETS? It's a new 12 x 12 non-absorbing mixing palette with 100 disposable sheets of mixing surface. . It's great for mixing filler, fiberglass, plastics, gel, putty, and even touch up paint.. Prevent Costly Re-works! Keep contaminants out of your body filler & plastics. Stop wasting time looking for cardboard or cleaning old fashioned mixing palettes! . The Clean Sheets mix board pays for itself the first week you use it. . Just mix & use then peel off top sheet and you're ready to go again. CS100 Prop65 information pending -