MASS FOR PRODUCTION OF SILICATE ENAMEL COAT ON STEEL Russian patent published in 2009 - IPC C03C8/22 

FIELD: construction.

SUBSTANCE: mass for production of silicate enamel coat on steel includes frit of glass ceramic enamel, ceramic pigment, fire resistant clay, frit of silicate enamel and filling facility with the following ratio of components, wt %; frit of silicate enamel - 21-26; ceramic pigment - 5.5-10; fire-resistant clay - 5-6; filling substance - 0.1-1.0; frit of glass ceramic enamel - the rest. Frit of glass ceramic enamel has the following composition, wt %: SiO₂ - 32.0-34.0; Na₂O - 20.0-23.0; B₂O₃ - 11.0-14.0; Al₂O₃ - 21.0-25.0; CaO - 2.0-3.5; K₂O - 5.5-7.0.

EFFECT: production of enamel coat with matt surface, high corrosion resistance and resistance of colour under action of infrared and ultraviolet rays.

3 cl, 1 ex, 4 tbl