Budit 3146 Modified Boron Phosphate Budenheim Flame retardant / Fire retardant >> Phosphorus based Flame retardant agent Modified Boron Polyphosphate Budit 3146 is used as an additive in formulations of flame retardants to enhance the inhibiting properties. In the event of fire, phosphorous compounds promote the decomposition of the materials. The resulting phosphoric acid reacts with the material and leads to carbonization, as well as the formation of water and incombustible gases. In addition, B2O3 forms a coating and the burning material cannot drip off. Modified Boron Polyphosphate flame retardant agent. Used as an additive in formulations of flame retardants to enhance the inhibiting properties.