FIELD: chemistry.
SUBSTANCE: present invention relates to a product based on calcium sulphate containing gypsum and a shrinkage resistant additive. Shrinkage resistant additive is melamine polyphosphate or melamine pyrophosphate.
EFFECT: present invention relates to calcium sulphate-based products with improved resistance to high temperatures, for example products such as gypsum sheet dry plasters, and in particular to products with reduced shrinkage at high temperatures.
18 cl, 2 tbl, 3 dwg
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