EVA film is a thin film product which is made of EVA as the main raw material, added with various modifying additives, fully mixed, heated by the production and processing equipment, cast and extruded. The cured EVA can withstand atmospheric changes and has elasticity. After bonding with the glass, it can improve the transmittance of the glass, play a role in enhancing the transmittance and gain the output of the solar cell module. Therefore, it is an ideal packaging material for solar cell modules and glass.