Perlite




Pertile is an acidic volcanic glass with pearl structure. After heating, it can expand to 12-15times, It possesses the characteristics of very light, thermal insulation,sound insulation, strong ab-sorption etc--- It is used in such industries as new build-ing materials, petroleum chemistry, metallurgy, casting, agriculture, food filter, and environment protection.

Chemical elements


Element S1O2 At2O3 Fe2O3 CaO MgO K2O Na2O
Content 73.4 13,47 1.24 2.49 0.19 3.SS 3.05



Pecification and quality

Spe. Capacity kg/m3 Ratio Water contcut % Thermal conductivity (kcal/m.h.w)
4 -7mm <120 <10 <10 <0.045
3 -6mm <90 <8 <8 <0.045
2 - 4mm <80 <8 <8 <0.045
0.2 -0.5mm <50 <0.55 <2 <0.045