HC series belong to acicular wollastonite.

The product is grind by airflow mill. It has better aspect ratio and finer particle size.

Usage: as it is needle like powder, it can be used as a fiber filler to increase the strength.

            The product has high melting point and low ignition loss. 

            It can be used in building materials and fireproofing, and is the main raw material for calcium silicate board.

            It is also used in coating, paint, ceramic and other fields

According to the different loss on ignition, Raw material wollastonite is divided into 3 grades:  

Grade A: L.O.I.: 2.0% max; 

Grade B: L.O.I.: 3.0% max; 

Grade C: L.O.I.: 5.0% max;

By different sedimentation value, It is diveded into:

HC-50 (sedimentation value 50),                  HC-60 (sedimentation value 60),

HC-70 (sedimentation value 70),                  HC-80 (sedimentation value 80),

HC-90 (sedimentation value 90) and so on.

You can select the suitable type HCA-60 to 90, HCB-60 to 90, HCC-60 to 90.  

Here is the specification of HCB-60 for your reference: