| 摘要 |
FIELD: manufacture of building materials. ^ SUBSTANCE: invention relates to silicate technology, namely to compositions of glaze than may be used to coat facing tiles. Glaze contains following components, wt %: SiO2 48.0-52.0, Al2O3 4.0-6.0, CaO 16.0-20.0, MgO 0.5-1.5, Na2O 1.5-2.5, K2O 1.0-2.0, B2O3 4.0-8.0, CuO 3.0-5.0, SrO 12.0-13.0. ^ EFFECT: increased frost resistance of glaze. ^ 1 tbl |
