Polyisobutylene

Polyisobutylene (PIB) is a polymer that belongs to the class of elastomers, meaning it exhibits rubber-like properties such as flexibility and resilience. It is synthesized from isobutylene, a hydrocarbon derived from petroleum. Polyisobutylene is known for its excellent impermeability to gases, moisture, and other substances. Its molecular structure consists of long chains of repeating isobutylene units, which provide the polymer with its characteristic properties. There are multiple grades available with different viscosities.