- Principal:Cimbar Performance Minerals
- Chemical Name:Calcium Carbonate
- Chemical Family:Calcium Salts, Carbonates
- End Uses:Drilling Fluids
- Labeling Claims:Asbestos-free, Conflict Minerals-free, Halogen-free, Listed in California Prop 65
- Features:High Purity, High Purity
ExCal® CW 1640 is processed from a high purity stone, to exacting specifications. Strict quality control during manufacture results in a consistent product that is used in all phases of oil and gas exploration. ExCal® CW 1640 shown are suitable for use in drilling fluids and other applications.