Firemaster 520
Tetrabromophtalic anhydride based diol
Great Lakes
阻燃剂 >> 溴型
Flame retardant / Fire retardant >> Bromine based
聚酯 >> 不饱和
Polyester >> Unsaturated
聚亚安酯
Polyurethane
Firemaster® 520
A higher reactivity flame retardant for rigid polyurethane and polyisocyanurate foam applications, Firemaster 520 has been developed in close consultation with foam manufacturers who need to change their formulations to accommodate alternative blowing agents. These agents are quickly replacing HCFC, which is subject to phase-out under the Montreal protocol.
Firemaster 520, with its primary hydroxyl reactive groups, offers faster reaction rates, lower viscosity, and improved compatibility in water blown foams. In many applications, a higher reactivity flame retardant is preferred to reduce cycle time and surface friability. The reduced surface friability helps to improve the adhesion of facing sheets to the foam surface. In spray foam, a lower viscosity, higher reactivity flame retardant is needed to prepare low viscosity, fast curing spray foam systems.
Firemaster 520 can be used in coatings.
Brominated diol
It's higher reactivity can reduce surface friability and increase throughput.
Brominated polyol. Used as a higher reactivity flame retardant for coatings. Contains primary hydroxyl reactive groups. Offers faster reaction rates, lower viscosity, and improved compatibility in water blown foams. Reduces surface friability. Increases throughput.