New Construction Materials Sound Isolation Vermiculite/wall pannel vermiculite

 Vermiculite   Product Description  Vermiculite Introduction 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 .
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

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