Saflex® PA61 Solar PVB Encapsulant
Proven 3G PVB technology exceptionally suited for thin film solar PV market
The role of the solar panel package is twofold: maintain the efficiency of the solar cell and protect the system from environmental elements such as rain, hail, heat, and humidity. Plus, panels must consistently perform across a range of end-user applications and endure over their expected lifetime—typically 20 to 30 years. That’s why thin film module manufacturers are increasingly turning to Saflex solar PVB encapsulants.
Saflex, a unit of Solutia Inc., entered the solar market with a new solar encapsulant—Saflex PA61. It’s based on proven third generation (3G) PVB chemistry that was first introduced by Saflex in 1997 for architectural and automotive applications. 3G PVB has since become the base formulation for all Saflex PVB products.
The 3G PVB product platform is a major improvement to previous PVB formulations as it was designed specifically for long term edge stability and durability in encapsulated systems. This is of particular importance when using metal coated glass or in exposed edge applications like frameless solar modules.
A key attribute of Saflex 3G PVB is its retention of adhesion at very high moisture content and it’s ability to maintain that adhesion at its edges helping to overcome the separation stresses that might otherwise cause edge delamination. Test results confirm the formulation to be less moisture sensitive which helps maintain high adhesion of the encapsulant to the glass, especially at the edges, even as environmental conditions, like humidity, fluctuate. Saflex PA61 is also IEC certified, UL recognized, and RoHS compliant.
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Saflex PA61 Technical Data Overview
About Solutia
Solutia is a market-leading performance materials and specialty chemicals company. The company focuses on providing solutions for a better life through a range of products including Vistasolar® EVA and Saflex® PVB Encapsulants for solar modules among others. With 100 plus years of combined processing expertise, unmatched manufacturing scale, and a track record of rapid innovation, Solutia provides expert analysis and cutting-edge solutions to the world’s leading solar energy companies. With its headquarters in St. Louis, Missouri, USA, Solutia operates globally with approximately 3,100 employees in more than 50 locations.
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