Ceramic frit is a pre-melted and then rapidly cooled glassy mass designed for use in glazes, enamels, and other ceramic coatings. The product appears as a white or translucent granular powder or flakes. It is produced by thermal sintering of components (feldspar, quartz, boric acid, oxides of lead, sodium, zinc, etc.) at high temperatures (800–1200 °C), followed by crushing and grinding.
Frit has good solubility in fluxes, a low melting point, and high firing stability, making it a key element in the production of ceramic coatings. Its composition is selected depending on the desired glaze properties: gloss, transparency, hardness, acid resistance, and color.
Ceramic industry: Used as a base for glazes and coatings of ceramic tiles, sanitary ware, and tableware. Ensures surface uniformity, smoothness, and gloss.
Enamel production: Included in metal enamels (bathtubs, household appliances, ovens), forming a smooth, protective, and decorative layer.
Glass and artistic ceramics: Used in decorative finishing, stained glass, and artistic glazes.
Powder metallurgy and casting: Used as a protective or insulating glassy coating during metal melting and forming.