FIELD: chemistry.
SUBSTANCE: invention relates to enamel compositions. Enamel contains, wt%: SiO2 32.0-38.0; MgO 12.6-14.0; TiO2 0.6-1.0; Al2O3 3.0-5.5; CaF2 3.0-5.0; Fe2O3 6.0-8.0; CaO 13.0-15.0; K2O 14.0-16.0; NiO 4.5-6.1; Cu2O 0.8-1.5.
EFFECT: technical result consists in improvement of impact strength of enamel.
1 cl, 1 tbl
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