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Specifications
1.Size:0.25-8mm2.Type:raw and expanded vermiculite
3.Silver or golden color
4.Asbestos free
5.Manufacturer
Vermiculite
1.In color,vermiculite can be indevided into silver vermicultie and golden vermiculite
2.Type:raw vermiculite ,partially expanded vermiculite ,expanded vermiculite ,
3.Size:20-40mesh 40-60mesh 150mesh 200mesh 325mesh 400mesh 0-30um 0.3-0.65mm0.65-1mm0.3-1mm1-2mm
2- 4mm3-6mm4-8mm,
3.Expansion ratios:5.5-10times
4.Bulk density after expansion :90-270kgs/m3
5.Sample is free within 1kgs
6.Vermiculite quality certificate:MSDS ,SGS ,non-asbestos testing report ,chemicals testing report
Vermiculite production
Vermiculite, chemical formula M g × (H2O) [Mg3 × (AlSiO3O10) (H2O)], is a magnesium water inclouded aluminum silicate secondary metamorphic minerals of layered structure. It likes mica in form, and usually come from weathered or hydrothermal alterated black (gold ) Mica. It will present a deflection shape after heat expansion and water loss, liking a leech pattern in form , so it gets the name vermiculite.
Vermiculite specifications
Item | Specifications | Item | Specification |
Thermal Conductivity | 0.045 - 0.069w/m °C Under ambient conditions | asbestos | None |
Hardness | 1-1.5 | Compressive resistance | 100-150 Mpa |
Melting point | 1320°C-1370°C | Corrosion resistance | Alkali-resistant |
Vermiculite chemicals
Composition | SiO2 | MgO | Al2O3 | Fe2O3 | CaO | K2O | ph |
Percentage | 37-42 | 11-23 | 9-17 | 3.5-18 | 1-2 | 5-8 | 7-11 |
The chemical analysis of both crude and exfoliated vermiculite is the same.
Vermiculite features
Raw vermiculite will be expanded to many times when heated at 850-1100 °C,
poisonless, odorless , corrosion-resistant, Non-combustible , natural refractory properties , Good thermal insulation , low density , Heat-resistant ,sound-proofing .fire-proofing etc
Applications
Raw vermiculite is widely used for Foundary Insulation and Steel Industry
Expanded vermiculite is used in various industries as a packing material due to its highly absorbent nature. It is also a lightweight aggregator for plaster, proprietary concrete, compounds, fire stop mortar and cementious spray fireproofing. It can also be used as loose fill insulation and can be molded into shapes, bonded with cement and other bonding materials for insulation, refractory insulation, fireproofing of structural steel and pipes industries. Exfoliated vermiculite is also widely used as a component of the interior fill for fire stop pillows, and is also used in commercial hand warmers. Vermiculite is used for Horticulture :lawn of golf,seed preservation agent,soil conditioner ,wetting agent,plant growth substance,feed additive ,any other applications
Vermicultie product
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