Aluminum phosphite is a widely used inorganic phosphorus flame retardant, with precipitationresistance, non-volatile and good thermal stability. 

Application： 

1. Excellent thermal stability and low water solubility. 

2. Widely used in PBT, PA, PP, TPE, TPU, PU, etc. 

3. Good precipitation resistance. It is not easy to precipitate under high temperature and high humidity. 

Packaging and storage： 

25kg/bag, transport compiling with general chemical regulations, store in a dry and cool place, avoid direct sunlight.