Hydrophobic perlite is a vitreous granular product obtained by special hydrophobic treatment of perlite with a certain particle size, preheated at an

ISO9001 quality management system, the expanded perlite (pearlite sand) produced for ultra-low temperature insulation to the greatest extent meets the special requirements of ultra-low temperature equipment such as air separation plants, cryogenic liquid storage tanks (LNG, LPG, liquid oxygen, liquid nitrogen, ethylene). Requirements.