perlite
1. Description:
The material comes from volcanic lava. It is a kind of amorphous, glassiness volcano that contains crystalline water inside.
For expanded perlite has low density and low heat conductivity characters, it is widely used in construction and manufacturing fields,lightweight plasters and mortars, insulation, ceiling tiles and filter aids.
2. Perlite specification:
| Item | Specification | Item | Specification |
| SiO2 | 68-74 | ph | 6.5-7.5 |
| Al2O3 | 12-16 | Specific gravity | 2.2-2.4g/cc |
| Fe2O3 | 0.1-2 | Bulk density | 80-120kgs/m3 |
| CaO | 0.15-1.5 | Softening point | 871-1093°C |
| Na2O | 4-5 | Fusion point | 1280-1350°C |
| K2O | 1-4 | Specific heat | 387J/kg.K |
| MgO | 0.3 | Liquid solubility | <1% |
| Loss in burning | 4-8 | Acid solubility | <2% |
| Color | White | ||
| Refractive index | 1.5 | ||
| Free moisture content | 0.5%max |
3. Perlite size:
Perlite Sand, Unexpanded Perlite: 12-16mesh, 14-20mesh, 16-32mesh, 20-40mesh, 30mesh-50mesh, 50-150mesh, 200-325mesh
Perlite filter aid :30-50mesh, 50-70mesh, 70-90mesh, 90-120mesh, 120-200mesh 325mesh
Expanded Perlite: 60mesh, 100mesh, 120mesh, 150mesh, 0.1-1mm, 0.5-1.5mm1-2mm, 2-4mm3-6mm 4-8mm
Horticultural Perlite:1-2mm, 2-4mm, 1-4mm ,3-5mm.4-8mm
Special size is supplied as per customers' demands
4. Perlite usages:
| Building Industry: | Produce light, thermal insulation and acoustic board; Be ideal materials of various industrial equipment and pipe insulating layer; |
| Fillter Aid and Filler | Be filtering agent,when making wine,drinking, syrup,vinegar etc; Purify various liquid and water,coming up to innoxious to human and animal;Be filler of plastic,rubber, , enamel etc; |
| Agriculture and Horticulture | Reform soil and adjust soil hardened;Prevent plants from falling down and control fertilizer efficiency and fertility;Be diluent and carrier of biocide and herbicide. |
| Mechanism, Metallurgy, Hydropower andLight Industry | Be ingredients of heat insulation glass, mineral wool and porcelain products etc. |
| Other Aspect | Be packing materials of exquisite products and pollution products; Be abradant material of gem,colourful stone,glass products; Be density regulator of explosive, treating-agent of sewage. |
5. Features:
| Through being expanded, perlite is light ,multi-functional ,new materials. |
| It has light apparent density,low thermal conductivity, fine chemical stability and wide use temperature range. |
| It is non-toxic, flavorless,fireproof, acoustic etc. |
| It is widely used in many industries. |