Stemergy: Renewable Fibre Technology

Plain sailing for flax…

22 February 2011

Last October, the first 6.5-metre flax-carbon fibre composite racing boat crossed the finishing line of the Mini Barcelona single-handed boat race.

The boat, called Araldite is a ‘mini-transat' – the smallest offshore racing boat certified to cross the Atlantic and the first racing boat to incorporate 50% flax fibres impregnated with epoxy resin, notably in compsites in the the hull, helm and hold.

The ultimate goal in building Araldite was to adopt a cleaner production process and to use a renewable natural fibre with carbon fibre without compromising performance properties and weight.

To achieve this, Lineo, a Belgian company specialising in flax reinforcements, provided specially-treated fibres to ensure perfect compatibility between the flax and the Araldite warm curing system.

This technological exploit, undertaken in a partnership between Huntsman, Libeco and Linéo, delivers lightness, easy handling and resistance characteristics inherent to flax fibres. The final result is a boat which is amongst the lightest of its category.

Lineo's technology coats the flax fibres with epoxy resins in such a way that absorption of water from the flax is prevented and strong bonds between the flax and the epoxy resin are created, ensuring the quality of the laminate.


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About Stemergy

Stemergy bio-fiber is focused on producing and supplying renewable bio-fibres - derived from annual stem fiber plants such as flax and hemp - to the expanding global bio-fiber marketplace.