CTS, Cooper Standard fit Peugeot 308 with SEBS TPV seals

By David Shaw, ERJ staff

Düsseldorf, Germany - The latest Peugeot 308 has static window seals made from a TPV based on Kraton's SEBS material and polypropylene. The seals -- including glass channels and belt-line seals -- are made by Cooper-Standard. The material was developed by TPE compounder CTS based in Tiffauges, France.

According to Phillipe Durand, CTS executive in charge of the automotive market, the main benefit of the TPV seal are a consistent visual appearance among extrusions, corner mouldings and injection moulded components; also the system saves weight as it does nt require metal inserts for rigidity. The absence of metal also allows the material to be more easily recycled, he said. Durand said the system cost was lower than more conventional EPDM seals, but insisted the main driving force had been improved appearance.

The seal is made from three different compounds. One for the main glass channel extrusions; another for the corner mouldings and a third more rigid material for the injection-moulded belt line seal.

CTS (Cousin-Tessier Saplast) is a unit of the Tessenderlo Group. It employs 360 and has capacity to mix around 130 kt of material each year. the company is strong in PVC and also in thermoplastic elastomers

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Web site of CTS