Xaloy MPX Nordson is offering a new coating for all of its single and twin plasticating screws used in extrusion and injection molding. Screws with the nanoparticle coating are suited for processing halogenated materials such as flame retardants and PVC, or compounds made from 15 to 35 percent filler. The coating, consisting primarily of tungsten carbide particles only 5 microns in diameter, can be applied to an entire screw, or specific areas. Shown is a close-up of a screw flight cross-section with the Xaloy MPX coating.

What's new? The coating, which Nordson introduced at the K show.

Benefits Longer-lasting screws. Xaloy MPX resists wear from abrasion and corrosion better than standard coatings that are applied via high-velocity oxygen fuel (HVOF) thermal spray.

Nordson Corp., New Castle, Pa., 724-656-5600, www.nordsonpolymerprocessing.com