Colemanite

Colemanite is a natural source of boron and calcium and is a powerful melter. If you use too much it can cause a glaze to delayer from a ware (decrepitation).

It is advisable to sieve with 200# mesh and remove coarse materials.

Source: UK

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

B2O3 50.80%, CaO 27.30%*

*General analysis, not supplied by the supplier.

Considered a nuisance dust; therefore, we recommend wearing an FFP3/P3 Mask. Keep working areas free of dust by cleaning up with a damp sponge.

Children should not work with raw materials.

See the SDS in the product attachments for more information.

• Colemanite SDS (PDF)
• Using Raw Materials