COMPOSITION OF THE GLAZE BLEND Russian patent published in 2007 - IPC C04B41/86 

FIELD: glass industry; construction materials industry; methods of production of the silicates.

SUBSTANCE: the invention is pertaining to the field of the silicates technology and is dealt with the compositions of the blend of the glazes used in production of the majolica. The compositions of the blend of the glaze contains(in mass %): pegmatite - 10-14, the quartz sand - 26-28; the boric acid - 16-20, the soda ash - 3-5, strontium carbonate - 10-15, dolomite - 3-4, aluminum oxide - 5-7, the argil - 5-9, the broken glass - 8-12. The technical result of the invention is the increase of heat stability of the glaze up to 10-15 heat changes.

EFFECT: the invention ensures the increase of heat stability of the glaze up to 10-15 heat changes.

1 tbl