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Standard Borax Frit


General purpose Leadless Frit with a medium thermal expansion, which is ideal as the major ingredient in earthenware glazes.

Technical Information:

Linear Thermal Expansion: 8.3 x 10-6/°C.

Firing Range: 900 - 1100°C

SiO2: 49.6%
B2O3: 18.0%
MgO: 0.1%
Al2O3: 7.5%
Na2O: 8.8%
K2O: 1.7%
CaO: 14.1%


Please read the safety information prior to purchase and use:

Safety Data Sheet (pdf)