Kraiburg presents new thermoplastic elastomers automotive applications

Kraiburg presents new thermoplastic elastomers for automotive applications

9:18 AM, 25th October 2017
Window trim and sealing profiles made of EPDM with moulded THERMOLAST K corner joints and end elements.
Kraiburg TPE.

WALDKRAIBURG, GERMANY: Kraiburg TPE, a leading global manufacturer of thermoplastic elastomers said that it will present a new series of thermoplastic elastomers, that were specially developed for excellent adhesion and UV resistance in two-component applications with ethylene propylene diene monomer rubber (EPDM).

The new compounds of the THERMOLAST K family are intended primarily for automotive applications such as EPDM window trim and sealing profiles with moulded TPE corner joints and end elements.

The automotive industry is the largest and fastest-growing market for thermoplastic elastomers (TPE). New applications exist for the segment of door and window seals, which require dimensionally stable corner joints and end elements. This has been achieved in the past with styrene-butadiene compounds (SBC) and crosslinked thermoplastic vulcanized (TPV) rubber.

The cost-effectiveness of TPV is limited, however, due to diverse factors in the manufacturing process, in particular, the window trim. The EPDM adhesion series from Kraiburg TPE offers a good alternative with added value.

The core requirements for corner joints and end elements of window trim profiles include excellent adhesion and weathering resistance, which are ensured by the long-term process stability of the TPE/rubber connection. It is also necessary to minimize the injection temperature of the TPE solutions in order to reduce the cooling and cycle times of the 2-component elements.

Kraiburg TPE has examined the suitability of the new materials in comprehensive adhesion, weather exposure and thermal ageing tests. The processing properties and stability were optimized in close cooperation with the machine and mould manufacturers.

“The versatility of our TPE technology has made it possible for us to develop a competitive material that solves the phase separation problems of the systems that are currently used. In addition, we have the market expertise and customer orientation for fast implementation of such innovative two-component applications,” said Michael Pollmann of Kraiburg TPE.

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