perlite

Product Description

Perlite Perlite is a volcanic debris encountered the acidic lava lakes, marine after a sharp cooling after a vitrified form of volcanic rock, which formed in the late Jurassic to the Cretaceous period, which is some **0 million 5 3 ***0 millions of years. According to the internal crystalline water content in different areas into obsidian, perlite Perlite is to smash the magmatic rocks heated to ***0 ? C to form the above expansion, with a closed porous structure, Particle diameter is generally 0.5 ~ 2.5mm between. Light, good ventilation, no nutritional elements. Easy to use in the mixed culture floating on the surface of soil Major uses expanded perlite： 1． Construction areas : thermal insulation, fire retardant paint, sound-absorbing panels, and so on 2． Industrial fields ：Pipe insulation, cold insulation insulation, filtration materials, the process of steelmaking slag build sets, rubber plastic filling material 3． Agriculture horticultural areas : soilless cultivation, soil improvement, pesticides ease amid antiseptic