Piperazine Pyrophosphate IFR-PAP01 Piperazine Pyrophosphate Passing UL94 V0 for Plastics IFR-PAP01 is Piperazine pyrophosphate, a kind of halogen free environmentally friendly flame retardant has carbon source and acid source. It can constitute efficient intumescent flame retardant with some other gas source and acid source, make some polymer pass the tests of UL94-V0 (0.75mm), GWIT 750℃, GWFI 960℃ . Moreover, it is free from the restrictions of RoHS Directive and REACH