Expanded Perlite Powder For Insulation Planting Garden

Expanded perlite with the acidic volcanic glass lave as the raw material, through crushing, sieving to a certain size, then through preheating, delay of above 1400 ℃ high temperature sintering and made of a white or light color of high quality insulation material, with different cement mixture, can make such as hydrophobic perlite insulation board, perlite sound-absorbing board, partition panel, fire door core board, etc.70-75%silicon dioxide:      SiO212-15%aluminium oxid:     AL2O33-4%sodium oxide:        Na2O3-5%potassium oxide:   K2O0.5-2%iron oxide:             Fe2O30.2-0.7%magnesium oxide: MgO0.5-1.5%calcium oxide:        CaO3-5%loss on ignition(chemical/combined water)applicationIn the construction and manufacturing fields,it is used in lightweight plasters and mortars,insulation and ceiling tiles.In horticulture,perlite can be used as a soil amendment or alone as a medium for hydroponics or for starting cuttings.When used as an amendment it has high permeability/low water retention and helps prevent soil compaction.