Expanded perlite is a new material with multi applications. Due to excellent characteristics, excellent chemical stability,
Low coefficient of thermal conductivity,
Weak water absorption,
Non-toxic, non-smelling,
Excellent insulation properties,
Low bulk density etc.,
Expanded perlite is widely used in many industry areas.
1. Horticultural Applications
2. Construction applications
3. Heat insualtion brick/board etc.
Expanded perlite closed cell is a type of new expanded perlite which heated the big grit perlite in electric furnace and gotten uniform structure and hyaline surface grit, shape in round granular.
In horticultural applications, perlite is used throughout the world as a componet of soilless growing mixed where it provides aeration and optimum moisture retention for superior plant growth. Other horticultural applications for perlite are as a carrier for fertilizer, herbicides and pesticides and for peletizing seed.
Perlite is widely used as a loose fill insulation in masonry construction. Other construction applications include under-floor insulation, chimney linings, paint texturing, gypsum boards, ceiling tiles, and roof insulation boards etc.
| Chemical Analysis Physical Properties |
| SiO2 |
68-74% Bulk Density: 70-250 kg/m3 |
| Al2O3 |
9-14% Thermal Conductivity: 0.047-0.054 w/m.k |
| MgO |
0.4-0.9% Water Absorption: 360-480 % |
| CaO |
0.8-1.6% Refractoriness:1250-1300ºC |
| Na2O |
2.27-3.9% Max service temperature: 750ºC |
| K2O |
1.67-3.2% |
| H2O |
3.2-5.88% |
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