The bodyshell was galvanised with full plastic wheelarch liners and is therefore rustproof. Coil zippers are the commonest type of zippers that are lightweight, heat resistant and rustproof. Both bridges use post-tensioned concrete, reinforced with rustproof steel cables. Weathering steel is not rustproof in itself. This dome is made of mild steel, and rustproof. Other manufacturers utilize aluminum, as it is rustproof and will last a lifetime. The enamel coating makes the cookware rustproof, and easy to clean. Monel is used by Arrow Fastener Co., Inc. for rustproof T50 staples. Lanolin is used commercially in many industrial products ranging from rustproof coatings to lubricants. It was also used to render it rustproof, suitable for carrying water.