FIELD: chemistry.
SUBSTANCE: invention relates to the industry of construction materials and glaze compositions for applying on ceramic tiles and bricks. The glaze contains the following, pts.wt: yellow lead 29-31; ground glass 10-12; ground malachite 6-8; quartz sand 10-12; bone ash 6-8. The glaze has frost resistance of not less than 100 cycles. The glaze is molten at temperature of 1430-1490°C and fired at 1120-1150°C.
EFFECT: high frost resistance of the glaze.
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|
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| GLAZING | 2013 |
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| LUSTRELESS BLACK TILE GLAZE | 2012 |
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