The EVA foam pad is also called EVA separator pads, is made of EVA rubber, cling foam, plastic/paper protective liner, mainly used to protect the glass against scratches and damage.
The EVA foam pad could stick to the glass surface for long time, when needn’t , it is easy to remove without traces or residue left.
The EVA foam pads need to be stored in clean and dry cardboard, the temperature around 18°and around 60% relative humidity of air is suitable. Need to avoid UV-radiation and too high humidity of air.
