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VOLUME -25 NUMBER 3
Publication Date: 03/1/2010
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March 2010 Issue
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Shin-Etsu Silicones Protect Photovoltaics
Potting and sealing materials benefit solar panels.
Akron, OH — Shin-Etsu Silicones of America (subsidiary of Shin-Etsu Chemical Co. Ltd., Japan) has introduced a diverse line of advanced performance, silicone-based products specifically designed for applications in the manufacture of energy harvesting solar photovoltaics.
Designed to improve reliability and stable the PV line is comprised of two key product categories that cover potting and sealing applications including potting materials for junction boxes and sealing materials for solar panel frames and junction boxes. The company has introduced type KE-200, KE-200F, KE-210, KE-210F potting materials for junction boxes that are designed to weatherproof solar panel junction boxes. This provides protection for the valuable electronics encapsulated inside. The two-component silicone potting materials quickly cure at room temperature — making the junction box both corrosion- and moisture-proof. Major benefits include superior adhesion strength to various substrates, excellent heat stability with no reversion under airtight conditions, high dielectric breakdown strength, and easy reparability.
Sealing materials for solar panel frames and junction boxes are types KE-45, KE-4828, KE-220. These one- and two-component silicone sealants are engineered for sealing the junction box (J-Box) to the back sheet of photovoltaics while also providing a waterproof seal between the PV panel and the frame. Performance properties include strong adhesion to back sheet materials such as PVF and PET, super-fast room-temperature cure, and excellent weatherability and electrical insulation.
The potting compounds are well suited for automated dispensing equipment making them excellent choices for mass production. The potting compounds use reduced low-molecular-weight siloxane and conform to UL94 V-0 equivalent for KE-210 and KE-210F.
The sealing materials provide super fast room temperature cure (KE-220), while all three (KE-45, KE-4828, KE-220) have excellent adhesive property to the back sheet materials such as PVF and PET. The sealants maintain good elasticity over a wide temperature range or -40 to +180°C, and exhibit superior weatherability and electrical insulation properties.
Contact Shin-Etsu Silicones of America, 1150 Damar Street, Akron, OH 44305-1201
800-544-1745 fax: 330-630-9855 E-mail: email@example.com Web:
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