Chemical Name: 2,2-bis(bromomethyl)-1,3-propanediol
Brand Name: RH-522
Equivalent Brand:FR-522, DBNPG

Application:
RH-522 is a reactive flame retardant. contains60% aliphatic bromine. Its high purity(it is typically 98.5％pure), is of benefit to the formulator.
Thermosetting polyester resins can be formulated over a wide range of compositions to provide a broader selection of resin properties than those available with anhydride flame retardant. Resins formulated with it have high chemical and flame resistance minimal thermal discoloration and excellent light stability The high bromine content of it and its ready reaction into polyurethanes make it suitable for use in rigid polyurethane foams. It is increasingly used in CFC-free foam systems designed to meet more stringent standards of flame retardancy.

Technical Data Sheet

Packing: RH-522 was packed in 25kg paper bag, 40 bags on pallet, Or Jumbo bag, total 20Mt per 20’FCL.