Foundry Grade Bentonite

We are offering foundry grade bentonite. As bentonite clay is used as binding substance to metal manufacture molding and core sand mixtures, as well as non-stick coating in the field of foundry. This area is one of the priorities to our organization. Our foundry grade has a high montmorillonite & high swelling content and is a sodium bentonite suitable for sand applications including fully automated and high-pressure systems.
Our foundry grade material provide these benefits.
• quick bond development - higher milling capacity
• moisture resistivity - sand control and consistent quality
• mouldability - great mould integrity
• high swelling - resistance in expansion
• thermal stability – good casting quality
parameters standard result
moisture 10 %-12 %
free swelling value (2 gm 100 ml) 30ml to 40 ml
gelling time instant
fineness u 200 b.s.s. Mesh 90 % passing
ph ( 5 % soln ) 9.0-9.5
green compression strength max 11 to 17psi
dry compression strength max 55psi max
liquid limit min 550+
gell formation index 60ml min - 95ml max