ERJ staff report (DS)
Friedrichshafen, Germany -- A new electronic connector gasket from Dana integrates wiring harness, power connectors in a single component. The rigid element is moulded in a DuPont grade of polyamide, while the soft components are over-moulded in a primerless process in a special grade of Du Pont's Vamac material. The innovative design reduces assembly time by 30-40 percent and component cost by 25-40 percent compared with conventional gaskets and separate wiring harnesses.
The first commercial installations in Europe took place from early 2010 in large diesel engines manufactured by MTU, Deutz, and Liebherr, following exhaustive validation and field trials.
The multi-shot technology, licensed solely to DuPont by Evonik Degussa GmbH, allows the direct bonding of rubber and plastics and simplifies assembly by eliminating the need for primer or anchoring.
â€œThe greatest challenge was to seal metals, thermoplastics and rubber materials at the open window connector point. We worked closely with DuPont to modify the polymers and develop new process technology to create optimal adhesion throughout the gasket,â€ comments Berthold Schiele, sales engineer and project manager for plastic systems at Dana.
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Press release from DuPont