Coated Steel: Resistant, Useful, and Aesthetic Coated steels are steel sheets that have a metallic and/or non-metallic coating to prevent rust and corrosion that humidity and contamination can cause on the steel. Coated steel has an extra layer of metal, paint, or both to protect it from rust and wear. It is ideal for those who are looking for resistant, aesthetic, light, and cost-effective materials in industries such as construction, automotive, white goods, and other growing sectors. http://www.lusteel.com/coated-steel/