METHOD OF PRODUCING HEAT-INSULATION FACING MATERIAL BASED ON FOAMED GLASS Russian patent published in 2013 - IPC C03B19/08 C03C11/00 

FIELD: chemistry.

SUBSTANCE: invention relates to technology of silicates and production of articles from foamed glass. The method of producing heat-insulation facing material based on foamed glass with a decorative and protective coating, wherein raw materials ground to the required particle size: scrap glass or packaging or sheet glass granulates and a foaming agent: coal, soot, limestone or chalk, are mixed to obtain a foaming mixture, foamed and fired in a furnace. Deposition of the protective and decorative coating, which consists of a mixture of scrap glass or glass granulate in amount of 0.40-0.50 pts.wt, liquid glass in amount of 0.40-0.50 pts.wt, is carried out on finished foamed glass blocks cooled to temperature of 20-25°C; the layer is moulded by wetting, followed by heat treatment of the coating at temperature of 100-120°C for 2-4 hours and firing at temperature of 500-600°C for 5-15 minutes.

EFFECT: low density and improved protective characteristics of the material.

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