EVA encapsulant (Ethylene Vinyl Acetate) is a transparent polymer film used inside solar panels to protect solar cells and improve the panel's durability and performance. It acts as a protective layer between the solar cells, glass, and backsheet, helping the module withstand harsh weather conditions while maintaining high energy output.

EVA is one of the most widely used encapsulation materials in the solar industry because it offers excellent transparency, strong adhesion, and cost-effective protection for solar modules.

How Does EVA Encapsulant Work?

During the solar panel manufacturing process, EVA sheets are placed above and below the solar cells. The entire module is then heated and laminated under controlled pressure.

As the EVA melts and cures, it bonds the glass, solar cells, and backsheet into a single solid structure. This creates a strong protective seal that keeps the solar cells safe from environmental damage.