Expanded perlite is an internal honeycomb structure of the white granular material made by preheated, baked and expanded perlite ore. Principle is: by preheating£¬fire£¬rapid heating(1000¡æ above)£¬then the moisture vaporizing, the crushed special size ore is expanded in softened ore to be porous structure£¬become original 10-30 times.

Main features
Lightweight
Porous
Heat-insulation
Refactory
Sound-absorption waterproof
Non-toxic
Corrosion-proof


Applications:
Construction: roofing& wall insulation, lightweight aggregate
Industry: make hydrophobic perlite board£¬low-temperature£¬thermal
Agriculture: soil ameliorant, soilless culture, pesticides evanescent agent.
Insulation£ºengineering, industrial equipment, piping insulation etc.
Others: filter aid, filler, abrasive materials, slag material of steelmaking.