Moulding system provides exhaust diffuser

A Huntsman Advanced Materials product story
Edited by the Engineeringtalk editorial team Oct 25, 2007

Fischer used an Araldite Resin Transfer Moulding (RTM) system for the development, prototyping and production of an exhaust diffuser.

Fischer Composite Technology was commissioned to develop an exhaust diffuser that would meet a demanding list of product characteristics in terms of durability, heat, chemical and environmental resistance, impact strength and would fit with top of the range styling.

All this had to be achieved in just 13 weeks from concept to finished production component as well.

Working with Huntsman Advanced Materials, Fischer used an Araldite Resin Transfer Moulding (RTM) system for the development, prototyping and production of the exhaust diffuser.

During the Araldite RTM process to produce the exhaust diffuser, dry pre-formed CFK/GFK fibres are put into a mould and injected with epoxy resin.

This visible outer side of the exhaust diffuser has a 12K Twill 2/2 carbon fibre surface.

This is protected from UV light and other environmental elements with a tough, high-gloss lacquer paint finish.

"Working with Huntsman and this special Araldite RTM process we were able to develop and produce the prototype for this composite part in just ten weeks, and we started production in under 13 weeks from the original customer contact" said Gerhard Kolbl, Marketing and Sales Manager at Fischer Composite Technology.

"The Araldite system was suitable for this application because it meets our requirements in TG (glass transition temperature) performance, rapid production schedule and gives a high-quality finish that can be painted and still look good after exposure to heat, exhaust emissions and the elements".

The exhaust diffuser is being fitted on a special limited edition of 600 cars.

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