Use for making metal casting molds for a variety of metals ranging from Pewter to Cast Iron
Easy to (re)use, simply add water to maintain moisture
Ultra-fine formulation--Premium 180 Mesh Olivine (Magnesium Iron Silciate) Raw Sand and Bentonite Blend
Professionally Formulated, Pre-Mulled, and Quality Inspected (100% ready to use)
More stable, better finish, safer, and longer life than competing silica sands