Specifications
Silver vermiculite1.wide application for agriculture,industry and construction
2.asbestos free
3.strict quality control
Raw silver and unexpanded vermiculite manufactuer
1.What is Vermiculit
Vermiculite is the geological name given to a group of hydrated laminar minerals which are aluminum-iron magnesium silicates which have the appearance of mica, and is found in various parts of the world.
2.The main application of vermiculite
Vermiculite in industry:
- Gaskets or seals
- Fireproofing
- Insulation in steel works and foundries
- packing material
- Animal feedstuffs
- Friction lining
Vermiculite in agriculture and hoticulture
- Soil improvement
- Fertilizer carrier
- Hydroponic
- Seed germination
- House plants
- Transplanting
- Rooting cuting
Vermiculite in construction industry
- Bitumen coated vermiculite plates
- Construction coating
- Loose fill insulation
- Fireproof board
3.Technical Date
Physical data
Density | 2.2-2.8G/cm3 |
Thermal conductivity(W/[M·K]) | 0.047-0.081 |
Fire-proof(℃) | 1300-1350 |
Temperature in use (℃) | 900-1000 |
Water-Absorbing(%) | 26.5-40.6 |
Moisture-Absorbing(%) | ≤2 |
Anti-Freezing | For 15 cycles of freezing and thawing,particle with no any change at -20 ℃ |
Sound-Absorbing | 0.53-0.63 |
Corrosion resisting | Alkali-resisting |
PH | 7-8 |
Moh's Hardness | 1-1.5 |
Certificate of analysis
Test Iterm | Results |
SiO2 | 41.9% |
Al2O3 | 13.9% |
Fe2O3 | 19.6% |
MgO | 17.6% |
K2O | 0.12% |
Na2O | 0.21% |
4.General specfication of vermciulite
Unexpanded vermiculite | 0.3-1mm |
0.5-1.5mm | |
0.7-2mm | |
0.5-3.2mm | |
4-8mm | |
Expanded vermiculite | 0.3-1mm |
1-3mm | |
2-4mm | |
4-8mm | |
20-40mesh | |
100-325mesh |
5.Packaging and Loading
Raw vermiculite is packed in Jumbo bag,1.1MT/bag.
Expanded vemiculite is packed in PP bag,100L/bag.
6.Production flaw