FIELD: layered products or materials.
SUBSTANCE: invention relates to a method of producing a gypsum article, comprising obtaining a gypsum suspension containing 0.08 % to 1 % siloxane with a viscosity of at least 30 cP (0.030 Pa⋅c) and at least one siloxane polymerisation accelerator; forming the suspension into a gypsum article; possibility of hardening of suspension; and coating the gypsum core with a water-resistant coating containing potassium methylsiliconate. Invention also relates to a gypsum plate obtained using said method. Invention is developed in dependent claims.
EFFECT: technical result is high water resistance and reduced evaporation during drying.
8 cl, 2 dwg, 7 tbl
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