Vermiculite
1.Size: 0.3-1mm,1-2mm, 2-4mm, 4-8mm.
2.Vermiculite: Color: Golden, Silver
3.Vermiculite Flakes
1.Vermiculite
Ref. our vermiculite, we have both crude vermiculite and exfoliated vermiculite in two types: one is Silver-grey type ( Fe2O3 content around 5-8%, similar with South Africa vermiculite); the other type we call Golden-yellow type (Fe2O3 content around 16-23%, similar products with India and Australia).The white type mainly used in refractories/insulations, the golden yellow type mainly used in agriculture and horticulture. If used for agriculture and horticulture, we suggest you use golden vermiculite, because its PH is 6.5-7.2, for silver gray vermiculite,its PH is 8.5-9.5, that's to say, compared with silver vermiculite, golden vermiculite is more neutral. In Japan, Korea market, our customers choose golden vermiculite used for agriculture and horticulture .
2.Features
fireproof,heat insulating,sound and moisture aborbing,lihgt weight,non-toxic,non-obrasive.ect
3.Specification
1)Chemical Composition
Item | SiO2 | MgO | Fe2O3 | Al2O3 | CaO | K2O | H2O | PH |
Content % | 37-42 | 11-23 | 16-22%(golden) 5-13%(silver) | 9-17 | 1-2 | 5-8 | 5-11 | 7-11 |
2)Teconical date sheet
Grade | Size | Expanded times(ML/G) | Mositure(%) |
Micron | 0.2-0.7mm | 6-9 | 5max |
Superfine(TG5) | 0.3-1mm | 6.5-10 | 5max |
Fine | 0.7-2mm | 6.5-10 | 5max |
Medium | 1.4-4mm | 6-110 | 5max |
Large | 2.8-8mm | 6-10 | 5max |