DuPont™ Flashing Tape

Building Solutions | DuPont™ Flashing Tape
Commercial | Residential | Multifamily | Wall

Building science for the building process

Rooted in years of building envelope expertise, DuPont™ Flashing Tape is a proven weapon against the elements during construction. This self-adhesive tape protects the heads and jams of rectangular windows and door, with bulk water holdout, air leakage control, and more.


Flashing Tape

Help protect heads and jambs of rectangular windows and doors from air and water intrusion with DuPont™ Flashing Tape. DuPont™ Flashing Tape helps protect the heads and jambs of rectangular doors and windows from air and water intrusion. Wind-driven rain and outdoor air can find their way into walls around windows and doors. By helping to seal the building envelope, self-adhered DuPont™ Flashing Tape can help reduce the risk of water damage, increase building comfort, and improve energy efficiency.


Features & benefits

Feature Benefit
Butyl rubber adhesive backing
  • Self-adheres for easy installation on site
  • Forgiving initial tack to allow for repositioning
  • Adheres to most common building materials
  • Durability
  • Withstands rigors of job site
  • Handles UV exposure for up to 120 days
  • Can be installed at external temperatures as low as 25°F
  • Convenient roll widths
  • Perfect for a variety of applications, from flanged doors to deep window sills
  • Cost-effective

    Physical properties

    Method Unit Value
    Water Vapor Permeability ASTM E96 perm <1
    Water Penetration Resistance ASTM E331 Pa No leakage at 300 Pa
    ASTM E331 after thermal aging (0-120°F) - No leakage at 300 Pa
    Application Temperature - - Best when installed above 25°F
    Material Standard AAMA 711-13 - Class A (no primer)
    - - Level 3 Thermal Exposure (80°C/176°F for 7 days)

    Available sizes


    Thickness Dimenstions
    Flashing Tape 20 mm (507 microns) 4” x 75’, 6” x 75’, 9” x 75’, 12” x 75’, 4” x 33’