Specification Sheet
Flexible Duct Closure Tape
3350
Technical Data July, 2011
Product Description 3M™ Flexible Duct Closure Tape 3350 conforms to standard UL181B for use
on flexible air ducts and air connectors.
Construction
Backing Adhesive Color Standard Roll Length
Polypropylene Film Acrylic Silver 120 lyd (109.7 m)
Typical Physical
Properties
Note: The following technical information and data should be considered representative
or typical only, and should not be used for specification purposes.
ASTM Test Method
Adhesion to Steel:
33 oz./in. width (36 N/100 mm) D-3330
Tensile Strength: 36 lbs./in. width (631 N/100 mm) D-3759
Elongation at Break: 170% D-3759
Tape Thickness: 3.1 mils (0.08 mm) D-3652
Temperature Use Range: Up to 230°F (110°C)
Features • Meets the requirements of Standard UL181B – Closure Systems for Use With
Flexible Air Ducts and Air Connectors.
• UL 181B-FX listed.
• High tensile strength for demanding applications.
• Hand-tearable.
• Unwinds easily from the roll.
Application Ideas • Sealing of flexible air ducts and air connectors.
Storage Conditions Store under normal conditions of 70ºF (21ºC) and 50% R.H. in the original carton.
Shelf Life To obtain best performance, use this product within 12 months from date of
manufacture.