Film Tape, Tape Color Gray, Tape Brand 3M(TM), Brand and Series 3M 5490, Imperial Tape Length 5 yd, Imperial Tape Width 1/2 in, Imperial Tape WxL 1/2 in x 5 yd, Tape Thickness 3.7 mil, Tape Backing Material PTFE Film, Tape Adhesive Material Silicone, Maximum Tape Performance Temperature 400 Degrees F, Minimum Tape Performance Temperature -65 Degrees F, Temperature Range -65 Degrees to 400 Degrees F, Series 5490, Tape Type PTFE & Silicone Slick Surface Tape