Vermiculite Grade C - 3 is a medium particle size material meeting ASTM C516 Type 1, Grade 3 specifications. The high temperature insulation material is widely used as a component in growing media for professional growers. The swimming pool industry uses large quantities of this material mixed with Portland cement to make a lightweight concrete underlayment for vinyl pool liners. The unique properties of insulation and cushioning lengthen liner life and performance.

Medium Fine Vermiculite Packaging :
18-22 lb. kraft bags: 30 Bags/Pallet
Bag Volume: Approx. 4 cf