C-3 Medium grade Vermiculite

Vermiculite (Medium Grade C-3) 4.0 Cu. Ft., 30 bags- Price $389.00

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Organic Status:
Nat'l List
Shipped from Manuf.

This is a Grade C-3 vermiculite. A premium, medium particle size meeting ASTM C516 Type 1, Grade 3 specifications. This grade is widely used as a component in growing media for professional growers, refractory, lightweight concrete, fire proofing and packaging. 

This is a screened product so dust is severely minimized.

Average particle size is 1/16"-1/8"

Unit weight: 5.6 - 6.7 lb/cf

 Traits of vermiculite:

-Low thermal conductivity

-High water holding capacity


-Insolubility in both water and organic solvents.

 Please Note: This product is asbestos freeWe also sell this product as an insulation for folks building brick ovens, or for use in straw bale stucco construction.

MSDS Sheet, SDS SheetSpec Sheet

 We also offer all other GRADES of Vermiculite drop shipped from our supplier.

View our SFG information sheet on a how to do method, it is better than other mixes.