G-Tape Deck Flashing


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G-Tape – it’s the only one you need. It sticks, but not to itself and leaves no residue, and tears easily like masking tape. No other tape is like it.

Nichigo G-Tape™ is a self-adhering flashing tape that is suitable for installation of exterior wall fenestration products. Including, but not limited to, decks, windows and doors. G-Tape maintains its performance even after prolonged exposure to sunlight and rain, and the adhesive self-heals around steel and galvanized aluminum fasteners, protecting from rust and wood rot.

Apply G-Tape™ to the tops of joists, over ledger board, and around posts to prevent wood rot for up to 20 years!

2″/4″ – 3035BK No Liner/Backing

6″/9″/12″ – 3040BK w/ Liner

SKU: GTAPE Categories: , ,

G-Tape sets itself apart from the industry with a patented acrylic adhesive and woven cloth substrate. The acrylic adhesive not only provides high adhesion strength but is also repositionable without leaving a sticky residue. Even when the adhesive is modified for permanent bonding applications, it is still repositionable for approximately the first hour after activating the adhesive.


The cloth substrate is woven means that Nichigo G-Tape™ is straight-line hand tearable, every time. Additionally, because it is cloth, regardless of how Nichigo G-Tape™ is torn, it will not create rough, sharp edges.

Stability and strength are then added with a low-density polyethylene film. The film increases the tensile strength and abrasion resistance of Nichigo G-Tape™.

This combination of key features makes Nichigo G-Tape™ an ideal product across many different applications, including automotive, aviation, and building/construction.

  • Hand-tearable. No tools needed
  • Adhesion improves with time
  • No roller primer or heatgun needed
  • Face-to-face contact doesn’t effect adhesion providing less waste and easier workability
  • Wide temperature range (-40°F to 200°F)
  • All-weather (-20°F to 200°F | -29°C to 93°C )
  • High tensile strength
  • AAMA 711-13 Level 3 Certified
  • Self seals around fasteners