Momentive Performance Materials Introduces Next Generation Silwet* Adjuvants for Agricultural Applications



    Momentive Performance Materials today introduced Silwet* HS-312
    spreader and Silwet HS-429 penetrant. These new agricultural adjuvants
    offer increased hydrolytic stability to pesticide formulators,
    providing the opportunity to incorporate the performance and efficacy
    advantages of silicone spreaders and penetrants into "in-can"
    products. In the past, conventional silicone adjuvants could not be
    used successfully due to limitations on shelf-life.

    "These additions to the Silwet line build on our heritage of
    innovation in agricultural applications by significantly extending the
    stability range of silicone adjuvants," said S. Ari Papoulias, global
    marketing, Momentive. "By incorporating these innovative adjuvants
    "in-can", pesticide formulators may now offer their customers all the
    advantages of silicone superspreaders and penetrants. And, the
    "in-can" alternative is often a better and more efficient method of
    delivery compared to the addition of the individual components
    "tank-side."

    With superior spreading performance at lower concentrations
    relative to other commercial surfactants, and with extended stability
    in water-based formulations that range from pH 3 to pH 12, Silwet
    HS-312 spreader offers in-can pesticides the potential for lower spray
    application rates and enhanced efficacy. Silwet HS-312 spreader is
    also compatible with a number of agrochemical components, and can be
    dispersed into water-based agricultural formulations, yielding
    products with excellent shelf life.

    Silwet HS-429 penetrant is an excellent choice for formulators to
    consider for significant enhancement of the efficacy of their
    glyphosate and other water-soluble herbicide products. Optimized to
    provide excellent penetration, as well as extended stability in the
    4-9 pH range, it is a cost-effective adjuvant that can replace Tallow
    Amine Ethoxylates (TAE) and other common commercial surfactants. Also,
    Silwet HS-429 penetrant may be used at rates that are as much as ten
    times lower compared to conventional surfactant adjuvants. Compatible
    with many agrochemical components, Silwet HS-429 penetrant is easily
    dispersed into glyphosate formulations; yielding products with
    excellent clarity, phase stability and storage stability.

    To find out more about Silwet HS-312 spreader and Silwet HS-429
    penetrant, 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 Inc. is a premier specialty
    materials company, providing high-technology materials solutions to
    the silicones, quartz and ceramics markets. The company, as a global
    leader with worldwide operations, has a robust product portfolio, an
    enduring tradition of service excellence, and industry-leading
    research and development capabilities. Momentive Performance Materials
    Inc. is owned by an affiliate of Apollo Management, L.P. Additional
    information is available at www.momentive.com.

    *Silwet is a trademark of Momentive Performance Materials Inc.

    Silwet* HS-312 spreader and HS-429 penetrant are the subjects of
    one or more pending US and foreign patent applications.

    Copyright 2007 Momentive Performance Materials Inc. All rights
    reserved.