What is a frit?
A. Frits are any part of a glaze recipe that has been melted and then reground. They generally are considered melters or catalysts in most glaze formula. Frits are made from chemicals that are soluble, like borax, to make them less likely to upset a glaze batch’s fluidity. Substances like lead, antimony, barium and zinc are fritted to make them less injurious and or volatile. Ceramic stains are also frits since they are melted and reground carbonates and oxides. Frits are usually more reliable and predictable in some glazes.
