FR CROS 487 Coated Ammonium Polyphosphate 68333-79-9 Budenheim Flame retardant / Fire retardant >> Phosphorus based Coatings >> Solventborne Nearly insoluble in organic solvents Nearly insoluble in water Flame retardant agent Used for water base intumescent coatings Nearly insoluble in water and organic solvents. Under the impact of heat, FR CROS 484 decomposes under emission of non combustible gases which by forming a blaketing gas layer prevent the access of oxygen to the substrate. The residual acidic polyphosphates act as catalyst for the intumescent reaction by dehydration of carbon rich material. Furthermore these polyphosphoric compounds form higly protective layers onto the substrate Coated Ammonium polyphosphate flame retardant agent. Used in water based coatings. Possesses very low solubility in water and organic solvents. Decomposes under the impact of heat. Induces emission of non combustible gases that are forming a blanketing gas layer and prevent the access of oxygen to the substrate. The residual acidic polyphosphates act as catalyst for the intumescent reaction and form higly protective layers onto the substrate.