PAM: 1,best quality & best price 2,supply by factory 3,Polyacrylamide purity 100% 4, ... Polyacrylamide PAMPolyacrylamide called PAM, commonly known as flocculants or cohesion agent, sub-cation, anion type, the molecular weight between 400-1800 ... .5% maximum8) Monomer free: 0.05% maximumWe always do the best quality of PAM. expoting well of ...