EVA (Ethylene-Vinyl Acetate) film is the film that virtually all professionally made crystalline solar panels use to encapsulate their solar cells. It's a copolymer that melts easily (at around 140 degrees C) and has strong adhesive properties that make it bond with glass and the TPT (Tedlar-Polyester-Tedlar) backsheet. Its provides excellent protection against water, moisture, air and other corrosions, and when treated properly, it makes all the layers into one single piece. EVA produces the best results when a professional laminator is used, and that's why we have not offered this product to our customer base before. For those who have mastered the method of using a heat gun to blow hot air onto EVA to melt it and get decent results, this listing is for you. Many people have wanted us to provide not only cells but also as many other solar panel building materials, so we obliged.