3M Duct Tape 3900 is a general purpose, conformable cloth duct tape made with polyethylene film over cloth scrim and rubber adhesive. A good choice for general maintenance, wrapping, sealing, protecting and color coding.

• http://multimedia.mmm.com/mws/mediawebserver.dyn?6666660Zjcf6lVs6EVs666CX2COrrrrQ-

3M Duct Tape 3900 is a polyethylene backing that resists moisture prolonging the tape bond in moist or humid environments. The rubber adhesive sticks well to many surfaces. It is a versatile tape for many applications. This tape is conformable and can be applied to irregular surfaces. The backing has good tensile strength for tough applications. Easy hand tear. Available in seven colors for color coding or to match a surface. Individual roll wrap preserves integrity of the roll with less waste and easy identification. The core identification insures that the correct tape is used for the job.  Typical physical and performance characteristics include: thickness: 7.7 mils, adhesion to steel: 56 oz./in. width, tensile strength: 22 lbs./in. width, elongation at break: 15%, temperature use range: Up to 200(deg)F.