Polyamides show first signs of price erosion as demand from auto industry cools / Other materials stable / Business likely to remain weak in OctoberSeptember saw initial signs of erosion in European engineering thermoplastics notations. The significant fall in demand from the automotive segment in particular pressured prices of standard polyamides. Producers' attempts to hike PC prices also failed for the same reason. As for the commodity-related ABS and PP compounds, the decline in both SM and propylene also dragged prices down. By contrast, PBT and POM notations held stable. The weakness of the euro kept imports at bay. Although PMMA prices moved sideways, upward pressure remains.