Expanded vermiculite

Size:  20 - 325 mesh

Vermiculite is specially for friction materials by Tangshan HanWei. Cheap raw materials for brake industry. however, generally vermiculite and gravel quarries leech symbiosis, therefore, it's inevitable containing a certain amount of sand.Reduce the content of sand is very important! lower sand, means reduce noise and wear rate so that prevent the scratch pairing in good situation.

ours sand content lower than 0.5%.