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.

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