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CITROEN'S innovative Airbump technology, as seen on the new C4 Cactus, will definitely be used again on future models, according to the French manufacturer.

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'The technology took us over three years to develop,' explains Arnaud Le Clerc, Citroen's new managing director in the UK.

'It was expensive and required a lot of brainpower so I think it is fair to say we will use this technology again on future models. But the model has to be right,' he added.

But when quizzed on whether the Cactus designation would become Citroen's version of Volkswagen's Alltrack or Audi's Allroad, Le Clerc disagrees.

'Although I can see Airbump technology working on other cars, Cactus will remain specifically for this C4 model. It is a model in its own right and not a special range.'
 

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Airbump® will be synonymous with new Citroën models peut-être ? ;)
 

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Well, the airbumps are desinged by PSA and REHAU, using materials from BASF.

They are made from Elastollan® AC 55D10 HPM (High Performance Material), a TPU (Thermoplastic Polyurethane Elastomer) that combines freedom of design and long-term durability with attractive haptics and a high-class appearance.

Key properties:

  • - good tensile strength and abrasion resistance
    - elasticity
    - excellent impact resistance at low temperatures
    - high media resistance
    - outstanding surface even at low wall thicknesses
    - scratch-resistance
    - UV- and weather-resistance
    - easy cleaning
    - high service temperature of 120 to 150°C
    - easy processing
    - good colorability

If you want to read more here are couple of things:

- First application in a serial vehicle: Airbumps® in the Citroën C4 Cactus: http://www.polyurethanes.basf.de/pu/solutions/en/content/group/innovation/products/Elastollan_HPM_Cactus

- The creative process behind the Airbumps:
http://www.polyurethanes.basf.de/pu/solutions/en/function/conversions:/publish/content/group/innovation/products/Blick_hinter_die_Kulissen.pdf

- About Elastollan® HPM:
http://www.polyurethanes.basf.de/pu/solutions/en/content/group/innovation/products/Elastollan_HPM

- Product information on Elastollan® A C 55 D 10 HPM. Data sheet:
http://www.polyurethanes.basf.de/pu/solutions/en/function/conversions:/publish/content/group/Arbeitsgebiete_und_Produkte/Thermoplastische_Spezialelastomere/sortiment/HPM/AC_55D10_HPM.pdf

- Thermoplastic Polyurethane Elastomers:
http://www.polyurethanes.basf.de/pu/Elastollan/index
 
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