a two layered plaster design was chosen. The first aspect of our design is a base coat made of one part clay and soil, one part sand and one part sawdust. This layer is applied relatively heavily to reshape the bench in minor ways and to fill in holes and cracks from wear and tear. The fill coat also provides a clean smooth surface to apply a finish coat to. Out of twenty eight samples that we tested this mixture held up the best. | a two layered plaster design was chosen. The first aspect of our design is a base coat made of one part clay and soil, one part sand and one part sawdust. This layer is applied relatively heavily to reshape the bench in minor ways and to fill in holes and cracks from wear and tear. The fill coat also provides a clean smooth surface to apply a finish coat to. Out of twenty eight samples that we tested this mixture held up the best. |