Silvery Expanded Vermiculite 2-4mm
◆Vermiculite is a member of the phyllosilicate group of minerals, resembling mica in appearance. It is found in various parts of the world, vermiculite is basically a hydrated phlogopite mica which has the remarkable ability to expand to many times than its original volume when heated at 850 °C.Vermiculite is most widely used in its exfoliated form. The concertina-shaped granules of exfoliated vermiculite are non-combustible as well as being insoluble in water and all organic solvents.
Golden vermiculite
Chemical components
| Chemical Composition | SiO2 | Al2O3 | MgO | CaO | PH | Fe2O3 | Impurity |
| (%) | 41 | 18 | 21 | 0.8 | 7-10 | 3.5 | < 3 |
Chemical Composition | SiO2 | AL2O3 AL2O3 | MgO | CaO | FeO | Fe2O3 | TiO2 |
| (%) | 41.2 | 12.68 | 24.22 | 0.96 | 1.54 | 4.06 | 1.33 |
| Chemical Composition | K2O | P2O5 | H2O | Na2O | MnO | Impurity | L.O.I |
| (%) | 5.97 | 0.06 | 3 | 1.6 | 0.043 | < 5 | 6.71 |
Silvery vermiculite
Chemical components
Size: 0.3-1mm/1-2mm/2-4mm or other sizes customers required.
◆Expanded vermiculite
Size | Density (Kg/M3) | Water Absorption （%） | Thermal Conductivity (k/m2/h/℃) | Impurity （%） |
| 8mm Above | 70-110 | 480 | 0.045 | ≤3 |
| 4-8mm | 70-110 | 480 | 0.045 | ≤3 |
| 3-5mm | 80-120 | 465 | 0.045 | ≤3 |
| 1-3mm | 80-150 | 430 | 0.045 | ≤3 |
| 20-40mesh | 100-160 | 410 | 0.045-0.055 | ≤2 |
| 40-70mesh | 100-170 | 410 | 0.045-0.055 | ≤2 |
| 70-100mesh | 100-170 | 400 | 0.045-0.055 | ≤2 |
| 150mesh | 100-180 | 410 | 0.045-0.055 | ≤1 |
| 200mesh | 100-180 | 410 | 0.045-0.055 | ≤1 |
| 325mesh | 100-180 | 400 | 0.045-0.055 | ≤1 |
| Blended Grade | 90-180 | 430 | 0.045-0.055 | ≤3 |
Size:0.3-1mm/1-2mm/1.5-3.5mm/2-4mm/3.5-7mm/4-8mm/20-40mesh/70-100mesh/32
5mesh or as per customers'request.
Color:Silver, Golden
Horticulture Vermiculite: 1-2mm, 2-4mm
Expanded Vermiculite: 0-1mm, 1-3mm, 2-4mm
Insulation Vermiculite:0-1mm, 0-2mm, 0-3mm
The size should be adjusted according to the client's demand.
Expanded Vermiculite's Properties: Fireproof, heat insulating, sound and moisture absoring, light weight, non-toxic, ordorless, non-abrasive ect.
Application:
● Lightweight concrete and plaster.
● Lightweight vermiculite board.
● Lightweight aggregate and molded cement board.
● Horticultural soil conditioner.
● Fireprood door's inner stuffing.