| 摘要 |
FIELD: building materials, technology of silicate. ^ SUBSTANCE: invention relates to finishing silicate-made articles with permanent protective-decorative coatings. Enamel for silicate articles comprises the following components, wt.-%: SiO2, 56.0-60.0; CaO, 6.0-8.0; Na2O and/or K2O, 27.0-31.0; B2O3, 4.5-5.5; CuO, 0.5-1.5. Enamel comprises additionally F- in the amount 2.0-4.0 wt.-%. Invention provides usefulness for high-temperature finishing surface of silicate-made articles. ^ EFFECT: valuable properties of enamel. ^ 2 cl |
