... film with excellent performance. PIB masterbatch PIB masterbatch is a concentrate of high molecular weight Polyisobutylene tackifier in Linear Low ... stretchwrap films from LLDPE or LDPE.The high PIB content achieves its excellent cling property.FEATURESappearanceLightly powdered ... stronger adhesion the film surface is; and the more PIB masterbatch added in, the stronger adhesion get. Production ...