Clay-Based

Clay based grease, usually thickened with bentonite, has one defining property: it has no dropping point. The clay thickener does not melt, so the grease will not liquefy and run out of a bearing at high temperature the way a soap-thickened product can.

That makes it the option for kiln trolleys, oven and furnace conveyors, foundry equipment, drying plant and other bearings operating at sustained high temperature. The practical limit is not the thickener but the base oil, which will eventually oxidise and leave the clay behind as a dry residue, so relubrication intervals need to be short and generous rather than long.

Clay-based grease is generally not compatible with lithium or calcium products, so purge bearings thoroughly when changing over. Supplied from 500g tubs through 17kg pails and 180kg kegs.