- Principal:Clariant Additives
- Functions:Flame Retardant
- Chemical Family:Ammonium Salts, Polyphosphates
- End Uses:Intumescent Coating
- Labeling Claims:Biodegradable, Non-Flammable
- Features:Low Viscosity, Low Water Solubility
Exolit® AP 423 is a 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, non-hygroscopic and non-flammable.