AFA International Ltd. is a Taiwan-based company focusing on halogen-free flame retardants and melamine pyrophosphate (MPP), a synergistic flame retardant usually used with other synergistic flame retardants.I. Halogen-free flame retradantThe phosphours-nitrogen based intumescent flame retardants, either in the form of powder or masterbatch, can be used directly with the following polymers to reach the qualification of UL94-V0 or UL94-HBF.I-1 PBT, PET, PA6 / GFR-2001, GFR-2001MB I-2 PP / GFR-2002, GFR-2002MBI-3 PA66 / GFR-2003, GFR-2003MBI-4 TPE, TPU / GFR-2004, GFR-2004MBDetailed specifications & test data included in the brochureII. Melamine PyrophosphateAFA carries two types of Melamine Pyrophosphate as synergistic flame retardants. MPP-1 is recommended for most of the applications while MPP-B for those requiring very fine particle size. Small particle size (D50 of 3.5 & 2.14um, respectively) is the unique feature of the products.