Borax Frit - 1kg
This is a good general purpose Leadless frit with a medium thermal expansion, often referred to as SBF or Standard Borax Frit, which is ideal as the major ingredient in Earthenware glazes.
Chemical Analysis
SiO2 49.9%,
Al2O3 7.5%,
B2O3 18%,
CaO/MgO 14.1%,
K2O/Na2O3 10.5%
