Standard Borax Frit Hard Cover absorbent surface which may be

absorbent surface which may be sanded smooth once dry

and is a popular choice for craft metalworking

potentially harmful to you and the environment

almost odourless wax

With the ability to seal semi-absorbent surfaces

Standard Borax Frit Hard Cover absorbent surface which may beGeneral 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 1100C SiO2: 49. 6% B2O3: 18. 0% MgO: 0. 1% Al2O3: 7. 5% Na2O: 8. 8% K2O: 1. 7% CaO: 14. 1% WARNING: HARMFUL Please read the safety information prior to purchase and use: Safety Data Sheet (pdf)