POTASSIUM ALUMINIUM FLUORIDE PAF PROPERTIES Molucular formular is KAlF4. PAF is white powder or granular mainly used as production material of boron containing alloy cast by aluminium and magnesium, fusing agent of thermal welding and aluminum braze welding; and also for the production of abrasives, glass and ceramic so on. CHEMICAL COMPOSITION F 47 - 53% K 27 - 33 Al 17 21% Fe2O3 0.05% Max or 0.5%max (grey) PARTICLE SIZE Sandy -40mesh 90% Min Powder A -200mesh 90% Min B -325mesh 90% Min Guanular A -1mm 90% Min B -4mm 90% Min Lump PHYSICAL PROPERTIES Typical density 2.9 g/cm3