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Santopreneâ¢ (TPV) is a thermoplastic vulcanizate. Santoprene is fully dynamically vulcanized ethylene propylene diene monomer (EPDM) rubber in a thermoplastic matrix of polypropylene (PP). It looks, feels and behaves like rubber but, due to the PP content, offers simple, flexible part design and manufacturing.
Definition of neoprene. : a synthetic rubber made by the polymerization of chloroprene, characterized by superior resistance (as to oils), and used especially for special-purpose clothing (such as gloves and wet suits)