Gerstley Borate
Gerstley Borate is a sodium-calcium-borate compound used a low temperature flux which helps prevent crazing. It can serve as a opacifer. Substitute for Colemanite.
| Quantity | 1 - 9 | 10 - 49 | 50+ |
| Price | $2.50 | $2.00 | $1.40 |
| full bag weight: 50lb | |||