FOUNDRY. . . a binder and cushioning agent

Clay products are used in foundries to act as a binder and cushioning agent in greensand moulds. Maxibond is a blend of natural sodium and activated calcium clays specially selected to ensure optimum foundry performance.

Product Line

Bentoform Plus™ - An activated calcium bentonite ideally suited for use on high pressure moulding units.

Maxibond™ - A blend of natural sodium and activated calcium bentonite exhibiting high thermal durability and excellent foundry properties tailor made for individual foundry requirements.

Maxicarb™ - A blend of bentonite and specially selected carobonaceous additives tailor made to suit individual foundry requirements.

Hevi-Sand^® is produced from high-grade foundry chromite which has been specially treated for use as a mould & core media in the production of quality castings.

Hevi-Sand is selectively mined from AMCOL’s own sources which are among the richest and purest deposits in the world, this naturally occurring chrome ore undergoes several intensive cleaning and screening processes to enhance moulding & casting properties - available in various grades.

Properties of Hevi-Sand

• Its density, compared to silica sand, provides the mold or core with a high rate of heat transfer - giving excellent chilling characteristics - eliminating the need for metal chills.
• Chipping, grinding and overall cleaning costs are significantly reduced.
• Minimal binder requirements and excellent permeability reduce the possibility of scrap caused by gas problems.
• Resistance to penetration - high thermal stability & heat transfer when compared to silica sand makes it the preferred aggregate for large iron, steel, copper base and high alloy castings.
• Hevi-Sand is successful in reducing or eliminating penetration, burn-on and veining in castings of this type.

Visit the Hevi-Sand® website for more detailed information.