Dow Corning has introduced a multifunctional siloxane filler dispersion aid that can improve compatibility between materials, and provide application-specific benefits. The new Z-6173 product contains alkoxy- and alkyl-functional groups to improve dispersion of inorganic fillers into organic polymers such as resins, plastics and rubber. In addition to improving material compatibility, the alkyl functionality of Z-6173 also acts as a hydrophobe to reduce water absorption. It is suitable for use with a wide range of fillers, including silica, mica, wollastonite, glass and natural fibers, talc, calcium carbonate, ferrous metals, carbon microfibers, and many others.