IIR Isobutylene-isoprene copolymerized rubber which is manufactured in low temperature with isobutylene and little isoperne as monnomers,methylchloride as solvent,and aluminium trichloride as initiator,IIR has low air permeabillity,good gas barrier properties,excellent electric perfomance and thermal aging resistance .

IIR finishes in white or light yellow lump with a density of 0.92. It is packed in PE film,25KG/piece.42piece/BOX.1050KG/BOX.

SKYPE ID:jasonhe2012