Polyisoprene, polymer of isoprene (C 5H 8) that is the primary chemical constituent of natural rubber, of the naturally occurring resins balata and gutta-percha, and of the synthetic equivalents of these materials Flexilis Pvt Ltd is importer suppliers of Polyisopren rubber/ Isopren rubber (IR). Grades available is Natsyn 2200. Isopren rubber is a synthetic Natural rubber with consistent product property. Isopren rubber is used to produce coloured goods, pharma application, moulded rubber goods, catheter, insulin pen, needle shield cover, rubber soles, stoppers, sports goods, health care and medical rubber products, pharma loser.