£3.86
Article number: M006-100g
Availability: On backorder
1030 - 1180oC 6.9 Expansion SiO2 17.9%, B2O3 50.3%, MgO 0.1%, Al2O3 4.9%, K2O 0.3%, CaO 26.5% For use where recipes specify greater than 5% colemanite. Can be used as a base in lead free glazes. Glass jar is for illustration purposes only.
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