Calcium silicate boards

Exfoliated vermiculite is added to a calcium silicate slurry. This is then dewatered by pressing or by using one of the Fourdriner/Magnani/Hatschek processes to form a flat board which is then heat cured under pressure (typically 10-15 bar) for periods of up to 24 hours.

Brake linings

Finer grades of exfoliated vermiculite are being used in brake linings primarily for the automotive market. The properties of vermiculite

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