These Plates are the most ideal material for low weight and as well as rigid electrically insulated flooring, Cable Trench, Cat Walk, Marine and Chemical Industries, Boiler and Power Plant Rooms etc High Strength to weight ratio leading to considerable weight reduction and hence handling becomes easier Underwriters Laboratory USA, listed file no. E185332, SMC (8595 grade), suitable for out door use with respect to exposure to Ultraviolet Light, Water Exposure and Immersion, in accordance with UL 746C 100% Corrosion resistance and weather resistance