The GK series acid-resistant EVA film is a new generation of acid-resistant modified EVA encapsulation film. It uses EVA as the main raw material and has undergone special molecular chain modification technology, significantly enhancing the performance of the EVA material. Its water vapor transmission rate and volume resistivity performance indicators are superior to those of POE and TPO. It exhibits excellent resistance to PID, and is free of peroxides and acid-resistant formulation system, effectively protecting the stability of perovskite solar cells.