Bentonite

Composition

clay with a high montmorillonite (aluminium silicate) content, available as soda-activated calcium bentonite and as natural ‘Wyoming’ sodium bentonite

Colclay^®

Properties

• very mouldable
• very high swelling capacity
• high viscosity in water

Applications

Construction: ingredient of supporting liquid for diaphragm walls, drilling fluid, sand-bentonite sealing layers and cement-bentonite walls

Portaclay^®

Properties

• very mouldable
• very high swelling capacity
• high viscosity in water

Applications

Metallurgy: ingredient of casting powders, binder in clay-bonded moulding sand.