Product

Exolit® AP 428 is a fine-particle ammonium polyphosphate produced by a special method. The product is largely insoluble in water and completely insoluble in organic solvents. It is colorless, non-hygroscopic and non-flammable. Exolit® AP 428 differs from most other commercial products in the following ways: - greatly reduced solubility in water lower viscosity in aqueous suspensions - lower viscosity in PU polyol suspensions.