Abbreviation: PIB

Polyisobutylene (PIB) is a long-chain hydrocarbon polymer derived from the polymerization of isobutylene, possessing high molecular weight and exhibiting characteristics of a rubbery material. It is used in applications such as sealants, adhesives, lubricants, and as a base material for manufacturing butyl rubber, due to its excellent impermeability to gases and moisture, as well as its resistance to chemicals and temperature extremes.