E-Coat Surface Protection Major corrosion problems start from the inside. Protection against corrosion starts with a proven process, which is why all Montage products are treated with our superior E-Coat process that protects the product with complete coverage inside & out. Our galvanized steel framework is subjected to a multi-stage pre-treatment/wash (with zinc phosphate), followed by a duplex cathodic electrocoat system consisting of an epoxy primer, which significantly increases corrosion protection, and an acrylic topcoat, which provides the protection necessary to withstand adverse weathering effects. Immersion processes coat & cleanse the inside of the fence components as thoroughly as the outside. This prevents corrosion giving Montage products the ability to withstand the elements & be maintenance free.