Purchase prices for polyamides and polypropylenes rose up to 30 percent in 2004, according to the German association of the plastics processing industry.
Polyamides are used to make wheel arches and airbag cases, while polypropylenes are used for bumpers. There have already been delivery bottlenecks specifically for polyamides.
BASF of Ludwigshafen, Germany, is negotiating to pass on "a good part" of the price increase to its customers within the automotive supplier industry.
Dieter Seipler, chairman of the board of directors at Mann + Hummel, plans to pass on the double-digit price increase to car manufacturers in the form of special material surcharges.
Bernd Gottschalk, president of the German auto industry association (VDA), is worried: "This is all happening to us at a time when we don't have not much leeway."