3M™ Industrial Tapes
3m--industrial-tapes
3M™ 3939 Duct Adhesive Tapes
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. Typical physical and performance characteristics include; thickness: 9.5 mil, adhesion to steel: 60 oz/in width, tensile strength: 25 lb/in width, elongation at break: 14%, temperature use range: Up to 150(deg)F (65(deg)C) for one hour. 3939tape.jpg 
