FIELD: production of the special building materials. SUBSTANCE: composition for the fireproofing coat has, wt.-%: silicate binding agent, 34-40; vermiculite ore concentrate, 35-50; swollen vermiculite, 3-6; dolomite, 10-20; sodium or potassium polyphosphate, 3-5; it can contain additionally aluminium hydroxide, 3-10; mineral fiber, 1-4; surface-active substance, at least, one of the group: alkyl-, aryl-, alkylaryl-, sulfate, sulfonate, fatty acid salt, 0.5-1 above 100%. Composition can be used for making the fireproofing coat for metallostructures, air ducts and wood. EFFECT: increased fireproofing property of the coat. 4 cl, 1 tbl
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