Wollastonite

A source of calcium and silica, you could get those independently however it’s the mesh size (325) which proves desirable from wollastonite. Often used in low fire white firing bodies as it reduces shrinkage and increases strength, but it is most often used as a flux in a glaze, although be sure to sieve as the particle will easily agglomerate.

Source: UK
Mesh size: #325

For advice and further reading read our 'Using Raw Materials' PDF.

CaO 48.28%, Sio2 51.72%*

*General analysis, not supplied by our supplier.

Wollastonite is considered a nuisance dust; therefore, we recommend wearing a P3 Mask. Keep working areas free of dust by cleaning up with a damp sponge.

In keeping with our overall general advice, we suggest wearing full PPE when handling raw materials. This includes a mask, safety
glasses, and gloves. We also suggest working in a well ventilated area.

It is a sensible precaution for children not to work with raw materials.

See the SDS in the product attachments for more information.

• Wollastonite SDS (PDF)