Barlog Plastics (Overath / Germany; www.barlog.de) has developed a range of POM compounds with high thermal stability called "Kebaform XFA". The low-emission copolymer types are especially suited for vehicle interior components that are subjected to mechanical loads, says Barlog.

Because of its good slip and frictional properties as well as its high media resistance in the automotive sector, POM is much in demand, for example, in the production of cogwheels, sliding elements, handles, switches, covers and housings. Barlog claims to have eliminated the previous weakness of the material – increased emissions at temperatures above the recommended guide values – with a special recipe, a modified stabiliser system, improved end groups and a specially coordinated process engineering that reduces formaldehyde emissions. Even under unfavourable processing conditions (up to 220 °C with a dwell time of several minutes), emissions of maximum 2 ppm (mg/kg) according to the VDA 275 standard were achieved. Furthermore, the materials satisfy requirements concerning odour characteristics as per VDA 270. Compared with conventional POM, the company claims that there are also fewer deposits on the surface of the injection moulding tool, which reduces the amount of maintenance for the processor.

The Kebaform XFA range includes unreinforced POM copolymer types with different viscosities (MFR of 6.5-45 g/10 minutes) and impact-modified and UV-stabilised types. Customised solutions are also possible. Barlog will present its new range of products at this year's "Fakuma" trade fair (www.fakuma-messe.de) from 16-20 October in Friedrichshafen / Germany.