Fairmount Santrol is the leading producer of lake sand for the foundry industry. It is available from our Lakeshore Sand Co. The sub-angular shape and natural oxides make our lake sands ideal for iron and aluminum foundries. No other type of sand has the excellent anti-veining characteristics of lake sands, enabling foundries to eliminate expensive additives and instead rely on the consistency of the lake sands. The fine lake sand grades are excellent additives to green sand systems.