3M™ Multi-Purpose Duct Tape 3900 is a general purpose, conformable cloth duct tape made with polyethylene film over cloth scrim and rubber adhesive. It is a good choice for general maintenance, wrapping, sealing, protecting and color coding. Its polyethylene backing resists moisture which allows the tape to have a longer lasting bond in moist or humid environments. The rubber adhesive sticks well to many surfaces. It is a versatile tape for many applications.
3M™ Value Duct Tape 1900 is a conformable cloth duct tape manufactured with a polyethylene film over cloth scrim and a synthetic rubber adhesive. This synthetic rubber adhesive tape sticks well to many surfaces. Silver duct tape provides moisture resistance and is easy to tear by hand. Medium adhesion.
3M™ Utility Duct Tape 3939 is composed of a waterproof polyethylene film over cloth scrim backing with a rubber adhesive used for demanding duct tape applications. It is easy to tear and offers conformability. All-around holding, splicing, masking, patching, sealing and seaming tape.