Technical Parameters

Grade	G2	G3	G4	G5	G6
Color	white	white	white	white	white
Bulk density(g/cm3	0.18-0.22	0.18-0.22	0.18-0.22	0.18-0.22	≤0.18
PH
Permeability(Darcy)	>0.2	>0.5	>1.0	>1.5	>2.0
Pb(mg/kg)	<2	<2	<2	<2	<2
As(mg/kg)	<2	<2	<2	<2	<2

Application

Perlite  is a kind of containing water of crystallization of acidic lava siliceous volcanic glass, belong to igneous rock.Its particles treated by high temperature calcine,rock of crystallization water evaporation,perlite in the original 15-20 times the swelling ratio,volume and form rich in silence and opening stomatal expanded perlite,again after careful grinding and winnowing,they form a special performance of  perlite filter aid.

Package

Packed in 25kgs/1000kgs  kraft bag or PP Bag.