6305 20 Street NW Edmonton, Alberta (587) 458-8638

DuPont StraightFlash Flashing Tape (4″ x 150′)



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
  • 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


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