Potterycrafts Waterground & Dried Borax E Frit

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.

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%