Brown rooflock Vermiculite insulation, 4 mm, Packaging Type: Packet

Vermiculite is a hydrated magnesium aluminum sheet silicate mineral closely related to mica, and has all of the thermal and chemical resistance mica is known for. When subjected to heat, vermiculite expands and forms particles that are revered for being: Lightweight Incombustible Compressible Highly absorbent, soaking up to three times its volume in water Non-reactive Highly effective in cation exchange capacity Vermiculite is found all over the world, including Australia, Brazil, Bulgaria, Kenya, Russia, South Africa, Uganda, USA and Zimbabwe. Speciality Vermiculite mines and processes vermiculite concentrate in facilities located in Enoree, South Carolina. Vermiculite is mined using open cast mining techniques where the ore is separated from other minerals and then screened or classified into several basic particle sizes.