1.Main advantages and features of expanded vermiculite:
- Inorganic, inert and sterile.
- Non abrasive.
- Ultra light weight.
- Free from disease, weeds and insects.
- Slightly alkaline.
- High cation-exchange.
- Excellent aeration characteristics.
- High water holding capacity
- Insulating.
2.Chemical Properties
Composition |
SiO2 |
MgO |
Al2O3 |
Fe2O3 |
CaO |
K2O |
ph |
Percentage |
37-42% |
11-23% |
9-17% |
3.5-18% |
1-2% |
5-8% |
7-11 |
3.Vermiculite size:
Expanded vermiculite |
Silver vermiculite: 20-40mesh, 40-60mesh, 60-80mesh,80-120mesh, 200mesh, 325mesh, 1250mesh, 2500mesh, 0.3-1mm, 1-3mm, 2-4mm, 2-5mm, 3-6mm, 4-8mm, 1-5mm, 1-8mm, or according to customers requirement. |
Golden vermiculite: 20-40mesh, 40-60mesh, 60-80mesh,80-120mesh, 200mesh, 325mesh, 1250mesh, 2500mesh, 0.3-1mm, 1-3mm, 2-4mm, 2-5mm, 3-6mm, 4-8mm, 1-5mm, 1-8mm, or according to customers requirement. |
- Special size is supplied as per customers' demands.
4.Expanded vermiculite bulk density:
Vermiculite grade |
Vermiculite size |
Bulk density |
Impurity |
Moisture |
Super fine |
0.3-1mm |
120-150kgs/m3 |
2%max |
0.1%max |
Fine |
1-2mm 1-3mm |
110-130kgs/m3 |
3%max |
Medium |
2-4mm |
90-120kgs/m3 |
3%max |
Large |
3-6mm 4-8mm |
90-120kgs/m3 |
3%max |
Powder |
150mesh,200mesh, 325mesh,500mesh, 600mesh,20-40mesh,40-60mesh, 60-80mesh 80-120mesh |
110-250kgs/m3 |
1%max |
5.Applications:
Expanded vermiculite applications |
In Inudstry |
In Horticulture |
Gaskets or seals |
Soil improvement |
Fireproofing |
Fertilizer carrier |
Insulation in steel works and foundries |
Hydroponic |
packing material |
Seed germination |
Animal feedstuffs |
House plants |
Friction lining |
Transplanting |
|
Rooting cuting |
6.Photos: