FIELD: chemistry.
SUBSTANCE: invention relates to technology of silicates and deals with compositions of glazes for application of facade ceramic tiles. Glaze contains, wt %: broken window and/or container glass 68-72; kaolin 3-4; melted alkalis NaOH and KOH 3-4; litharge 10-12; calcium borate 6-8; zinc oxide and/or tin oxide 4-6.
EFFECT: increased frost-resistance of glaze.
1 tbl
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