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New color-stable eOrange identifies high-voltage EV components for safety

High-voltage components in EVs can be dangerous, and that’s why automakers tend to sheathe them in high-visibility orange plastic. Brüggemann, a German supplier of polymer additives and industrial chemicals, has partnered with GRAFE to develop color-stable eOrange masterbatches designed for use in injection-molded and extruded polyamide components for e-mobility.

The striking pastel orange RAL2003 is increasingly being used to identify plastic-sheathed, high-voltage, current-carrying components. eOrange is a color masterbatch for polyamides that retains its warning effect without darkening, even after 1,000 hours of service at 130° C.

This new GRAFE eOrange masterbatch, known by the trade name PA-Tekolen, is based on a combination of thermally-stable dyes with special heat stabilizers developed by Brüggemann for polyamides. Brüggemann says eOrange offers processors more flexibility in meeting specific requirements than using preformulated compounds, and also optimizes material consumption.

Wiring harness clips are already in series production, and other possible applications include high-voltage connectors, insulation for high-voltage cables, cable conduits, charging sockets and fasteners for EVs.

“We, along with our long-standing partner Brüggemann, have been receiving increasing numbers of inquiries from the e-mobility sector for some time now, and that’s why we started work on this joint project in late 2019,” said GRAFE Head of Sales Lars Tonnecke. “Brüggemann’s high-performance heat stabilizers and its know-how protect the polymers from unwanted changes, while GRAFE contributes its expertise in coloring and upgrading plastics. Customer benefits include ease of use of the masterbatches when tailoring individual applications and associated flexibility and cost advantages.”

Source: Brüggemann

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