3Mâ„¢ Duct Tape 3939 The all-around holding, splicing, masking, patching, sealing and seaming tape. Polyethylene coated cloth backing with rubber adhesive. High tack, conformability, strength and easy tear. silver color. Typical physical and performance characteristics include thickness: 9.0 mils, adhesion to steel: 55 oz/in width, tensile strength: 25 lbs/in width, elongation at break: 16%, temperature use range: Up to 200 F (93 C). Meets UL 723. Features and Benefits: Offers easy tear and conformability Meets UL 723, HUD, and BOCA codes Low tack roll edges (48 mm) so edges stay cleaner for less surface contamination and less waste Individual roll wrap (48 mm) that preserves integrity of the roll for less waste Product number printed in core to insure that correct product is used Polyethylene coated cloth scrim that resists moisture to prolong tape bond Good tensile strength for tough applications Rubber adhesive that adheres aggressively to most surfaces for good holding power and a tight seal DUCT TAPE, SILVER - 1.88" x 60yd