Insuperl LWC is a specially graded lightweight perlite aggregate conforming to ASTM C-332-1989 Group 1, used for the production of lightweight insulating concrete.
AVI CRYO PERL is a special grade of insulating perlite, inorganic in nature composed of siliceous volcanic rocks. A special grade expanded perlite, insulating for cryogenic and low temperature storage tanks, in shipping containers, cold boxes, test chambers and in food processing, capable of insulation for ( -269 °C to 1093°C).