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Fire-proof coating components

Segment description

Fire retardant coatings are intended for thermal insulation while protecting metal and other surfaces in order to increase their fire resistance in case of fire. They have a relatively small thickness, which increases significantly under fire conditions at high temperature influences. Fire retardant coating needs three main components. Carbon donor - pentaerythritol, polyalcohols, starch to form a carbonated protective layer. The inorganic acid for dehydration of the carbon donor is (poly) metaphosphoric acid (HO3P) n, which will form when ammonium polyphosphate (Novaflam APP) decomposes at a temperature of 275 ° C. A blowing agent, such as melamine, which releases gas (N2) necessary for the formation of foam.