AttaBox® Industrial Enclosures produces polycarbonate enclosures but also offers a variety of materials for use as back panels, including: Aluminum, ABS and Painted Carbon Steel products. The materials are uniformly chosen to provide resistance against corrosion even though they are to be protected within an enclosure designed for the same purpose. In aggressive atmospheres such chemical processing and wastewater treatment, the outside environment becomes the inside environment when the enclosure is opened and closed. This accounts for the multiple choices of back panels.