Alpha Tools Acrylic Flashing G-Tape




Alpha Tools Acrylic Flashing G-Tape has quickly become a favorite of deck builders across the United States. No other product combines performance and ease of use as well as adds protection to deck joists and helps increase longevity. The G-Tape 3040BK Series provides the ultimate flashing performance with unmatched contractor friendly features. The AAMA 7-11 Level 3 Class A rating means the 3040BK tape meets the highest standards for hot and cold performance and does so without the need for any additional primer. It is lighter weight than butyl or rubberized asphalt flashings and outperforms these products by significant margins. Although Alpha Tools Acrylic Flashing G-Tape is permanent, it can be removed from face to face adhesive contact cleanly with no loss of performance during the application. This means, if you accidentally fold a piece onto itself while removing the backer, you can still peel it apart. Alpha Tools Acrylic Flashing G-Tape comes in widths of 2″, 4″, 6″, 9″, and 12″ with a length of 65′. See flashing G-Tape data sheet for all properties.


  • Perfect flashing for doors, deck beams, and windows
  • Designed for easy and straight hand tearing
  • Highly water resistant
  • Highly weather resistant
  • Waterproof
  • Can be used in all weather from -40°F to 200°F
  • AAMA 7-11 Level 3 Class A Certified (
  • Great Performance and Ease of Use
  • Permanent Adhesion
  • Cleanly Removes from Face-to-Face Adhesive Contact


  • Available in 5 widths 2″, 4″, 6″, 9″ and 12″ all 65′ long

Additional information


2" x 65', 4" x 65', 6" x 65', 9" x 65', 12" x 65'