Field
Green sand bond for casting, matched to the metal and the mould.
Foundry bentonite bonds the moulding sand, holding shape through pouring and giving the casting its surface. Sodium and calcium activated grades behave differently under thermal load, and the right choice depends on the metal, the mould size and the sand system in use.
This application is served principally through Egypt Bentonite & Derivatives, which was established for it.
