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Exolit AP 423

Exolit AP 423 is a very fine-particle ammonium polyphosphate produced by a special method. The crystal modification is phase II. The product is largely insoluble in water and completely insoluble in organic solvents. It is a white powder, halogen free and non-flammable. Benefits Low solubility in water, low viscosity in aqueous suspensions and a low acid number Imparts a good flame-retardant effect to adhesives and sealants when incorporated into the base formulation at the rate of 10 - 20% Particularly suitable as an ”acid donor” for intumescent coatings thanks to its low water solubility. Steel structures coated with intumescent paints can meet the requirements of fire resistance classes specified in EN, DIN, BS, ASTM and others The application of Exolit® AP 423 based intumescent coatings on wood or plastics enables these materials to qualify for Building Material Class B (DIN EN 13501-1) Can be used in transport applications to obtain good fire, smoke and toxicity results (EN 45545) (Bio-)degradable by breaking down to naturally occurring phosphate and ammonia Non-halogenated flame retardant with favorable environmental and health profile
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