Dow sees bright future for polyolefin-based encapsulant, targets EVA


Dow Chemical Co. (Midland, MI) is launching a line of polyolefin-based encapsulant films for photovoltaic (PV) modules, after adding a new production line at its Findlay, OH manufacturing plant for the new product in response to growing demand for PV specialty films. Dow says that compared to traditional ethylene-vinyl acetate (EVA) encapsulants, its Enlight polyolefin-based product can enhance PV module production efficiencies, for lower conversion costs, while also providing greater module stability and improved electrical performance.

The encapsulant films, which are suitable for C-Si and thin-film modules, are also said to improve the reliability and extend the service life of PV technology.

The technology falls under Dow's Specialty Packaging & Films business, with Brij Sinha serving as that group's global business development leader. In a release, Sinha said Dow customers utilizing the Enlight films were able reduce cycle times by up to 30% while also extending the temperature window for lamination. Sinha said the customers also found that the film's physical properties virtually eliminated bubbles, reducing rejects, with damage to equipment and modules lessened because the process does not produce acetic acid....
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