FIELD: construction.
SUBSTANCE: composite material as a protective coating is made of a composition containing an aluminium powder, a heat resistant powdery filler, a heat resistant grain material, liquid glass as the binder, and also a silicon-containing material. The heat resistant powdery material in the composition is chamotte with size of particles from 20 to 50 mcm. The heat resistant grain material in the composition is chamotte with size of particles from 0.3 to 1.5 mm. The silicon-containing material in the composition is ferrosilicon FS75 with grain structure from 0.3 to 1.5 mm.
EFFECT: composite material provides for high strength, high heat resistance and durable efficient protection against high-temperature corrosion of metal products at high temperatures of their operation.
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