| Monthly Tech-Tip | No tracking! No ads! | 
The SIAL grog is made by RHI Refractories. Christy is from Christy Minerals. The Mullite is not really a grog but neither is it a powder, it is made by Mulcoa Refractories.
| Glossary | Grog Grog is a term used in ceramics to describe crushed brick (or other fired ceramic) aggregate that is added to sculpture and structural clays to improve drying properties. | 
Buy me a coffee and we can talk