Hydrophobic, High Density Lightweight Rigid Material High Temperature Perlite Boards

Closed cell perlite is a new perlite product, it is cobbing with a certain granularity will expand inside to outside after reaching a certain temperature under scarped heating of vertical electric furnace, and then the surface of expanded granular gets quick high-temperature vitrification, and becomes continuous vitrescence surface after cooling, inside it maintains a complete multi-pore and hollow structure. The specific production way of this product insures the purity of natural inorganic chemical composition of perlite.  Main features:1.light weigh, low density.2.Thermal conductivity 0.4--0.8W/MK.3.Class A1 non-combustible material.4.Good durability,good compatibility.5.Low water absorption, stable weather resistance.6.Simple construction,reliable quality.Application:fireproof expanded perlite insulation board is mainly used in concrete,brick walls for exterior insulation systems,fireproof barrier for high-rise building,color steel plate,aluminum plate lined with insulation material,interior wall sandwich instead of rock wool as excellent materials.