... ,perlite ore Size,0.5-2MM,1-4MM,2-5MM,3-6MM Horticulture,construction ISO9001-2000 company. Type,Raw(unexpanded) perlite ... .2-3mm,0.5-1.5mm,1-4mm,2-5mm,3-6mm etc.Packing,1,Raw perlite,In 25kg pp bags ... outside wall,paint,High-grade insulation materials and lightweight materials.3,Filter aid,Especially used for beer,fruit juice,plant oil ... you soon. expanded perlite (100mesh,150mesh,1-3mm,2-5mm,3-6mm etc)