BASF – The Chemical Company – is a global supplier to the air and liquid filtration market. Applications forpolyurethanes (PUR) include panel gaskets, radial seal, end caps, and adhesives. BASF offers worldwide solutions to ourglobally positioned customers.BASF Polyurethanes is dedicated to helping our customers improve their product quality while simultaneously lookingfor ways to achieve more effective manufacturing processes, reduce costs and improve competitiveness.Panel FiltersThe excellent dispersion and bond strength characteristics of polyurethane improve sealing characteristics in panel filters,helping to keep out airborne particulates in automotive and other machinery applications. The polyurethane gasket addsstructural rigidity to filters and adheres well to a wide range of filter media.Radial FiltersCylindrical filters, typically used to protect blowers, compressors, vacuum cleaners, engines, and many other types ofequipment benefit significantly from the use of polyurethane. The microcellular open cell structure of polyurethane deliversimproved compression sets resulting in better shape retention than alternative materials. Polyurethanes work well in filterswith deep pleat designs, delivering more filtering area and since PUR filters can be cured at lower temperatures than PVCplastisol (typically 105 to 150°F vs. 400°F), PUR usage helps decrease cycletime and cost during the manufacturingprocess. Recent developmental polyurethane filter technologies feature an additional benefit of environmentally friendlyprocessing when compared to the plastisol manufacturing process.End CapsPolyurethane end caps have shown to add strength and improve sealing for a range of filter requirements.AdhesivesBy providing a strong initial bond before fully curing, polyurethane elastomer and foam adhesives reduce the need forclamps and other holding materials during the manufacturing process and help filter manufacturers improve productivityand increase process flexibility.The latest developments in polyurethane filtration technology will be presented featuring unique properties,characteristics, processing, and the ease of customer requested BASF technology transfers from region to region.
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