Specifications
1.casting and slag removal2.Light alloy molding sand
3.Agricultural chemical extending
4.painting
5.sprayed wall material
Perlite Sand Standard composition
SIO2 | AL2O3 | Fe2O3 | CaO | MgO | K2O | Na2O | IG |
74.2% | 12.9% | 1.05% | 0.80% | 0.11% | 4.54% | 3.19% | 3.3% |
·Specific Gravity(normally packed) 0.5-0.9KG/L volume per unit
·Heat Durability SK O2ª(1060°)
·Thermal Conductivity 0.280-0.34Kcal /mh°C(Measured at 180-300C)
·Sound Absorption approx , 60%
·PH value 7
·Water Absorption 15%-28%
·Oil Absorption 10%-24%
·Freezing Test No change at -20°C for 24 hours
·Porosity Tesr 48.6%(JIS:R: 2614 )42.9% (JIS:R:2215)
·Chemical resistance Extremely stable due to natural glass
FEATURES
1 Light 2 thermal insulation
3 fire resistand 4 sound absorption
5 Chemically resistant 6 coloring power
7 Hygroscopicity 8 permeability
9 Water retentivity 10 Odorless harmless