Update - Momentive is Super: Superspreading for Enhanced Home Care Product Performance



    (This is an update to a release issued on September 6, 2007. It
    includes new information on Silwet* Hydrostable* 611 superspreader, as
    well as revised information on Silwet Hydrostable 68 superspreader in
    paragraph two.)

    Momentive Performance Materials Inc. today introduced Silwet
    Hydrostable 68 and Silwet Hydrostable 611 superspreaders, two advanced
    silicone surfactants that may help support a wide range of product
    performance enhancements for home care, institutional and industrial
    (HII) formulators. Formulators may use Silwet Hydrostable 68 and
    Silwet Hydrostable 611 superspreaders to enhance the performance of
    products such as dishwashing liquid, disinfectants, dishwasher
    detergent, window cleaners, polishes, automatic car washes, car waxes
    and other products for automotive surfaces.

    Silwet Hydrostable 68 and Silwet Hydrostable 611 superspreaders
    are organomodified silicones that offer surface tension reduction and
    superspreading properties. Silwet Hydrostable 68 remains stable in
    formulations ranging from pH 6 to 8, with improved stability relative
    to conventional superspreader surfactants, while Silwet Hydrostable
    611 is stable in formulations ranging from pH 6 to 11.

    By providing immediate spread coverage more than 100 times greater
    than the corresponding volume of water and 25 times greater than
    solutions containing conventional surfactants,(1) Silwet Hydrostable
    68 and Silwet Hydrostable 611 superspreaders may significantly improve
    the penetration of a product's active ingredients into cracks and
    crevices. Associated benefits typically include improved stain
    removal, anti-fogging, sheeting, quick drying and hard water spot
    elimination.

    "With the introduction of these superspreaders, we are giving home
    care formulators innovative alternatives to conventional surfactants,"
    said Robert Ruckle, Global Marketing Manager, Momentive Performance
    Materials. "Whether it is providing better drying and spot-free
    properties for dishwashing formulas or enabling much greater
    penetration of disinfectants, these silicone surfactants may give home
    care formulators a performance edge in the marketplace."

    Silwet Hydrostable 68 and Silwet Hydrostable 611 superspreaders
    are the first in a series of Momentive Performance Materials
    superspreader product introductions for HII formulators.

    To find out more about Silwet Hydrostable 68 and Silwet
    Hydrostable 611 superspreaders, please call 800.295.2392 in North
    America (+607.786.8131 everywhere else) or visit www.momentive.com.

    About Momentive Performance Materials

    Momentive Performance Materials is a premier specialty materials
    company, providing high-technology materials solutions to the
    silicones, quartz and ceramics markets. The company is a global leader
    with worldwide operations, a robust product portfolio,
    industry-leading research and development capabilities, and a long
    tradition of service excellence.

    (1)Test data. Actual results may vary.

    *Silwet and Hydrostable are trademarks of Momentive Performance
    Materials Inc.