3M Performance Plus Nuclear Duct Tape, Slate Blue, 48-Millimeter by 54.8-Meter Slate-blue nuclear duct tape certified for low leachable halogens and sulfur Ideal for applications in the shipbuilding, nuclear power plant and stainless steel industries Offers 6-month clean removal from most opaque surfaces Sunlight and UV resistance for up to 1 year Measures 48-millimeters-by-54 meters (WxL); 13 milli-inches thick; weighs 1.6 pounds