Tyvek® FlexWrap


Tyvek® FlexWrap flashing tape works seamlessly with Tyvek® and AirGuard® products to help you create continuous airtight and watertight seals.

For all those tricky jobs, Tyvek® FlexWrap tape will keep leaks and gaps at bay. Ideal for both internal and external use, this “magic” tape makes light work of sealing windows, chimney breasts, pipe penetrations and other custom shapes, ensuring air-tight and water-tight protection when you need it most.

Short on time? Not a problem. The Tyvek® FlexWrap tapes get the job done 50% faster than standard tapes and seals, and require no additional fixings. The durable Tyvek® top sheet will adapt itself to structural movements. Tyvek® FlexWrap is compatible with a huge choice of building materials and will adapt to common and uncommon shapes from windows to chimney breasts, creating a water-tight and air-tight seal that will withstand the elements.


Superior protection /air and watertight seals Easy installation Superior durability Excellent adhesion performance

  • Helps seal the building envelope
  • Creates more airtight seals compared to standard tapes used on irregular shapes/penetrations



  • Packaged in ready-to-use rolls
  • No requirement for additional fixings
  • Approx. 50% quicker to fit compared to standard tapes and seals


  • Extendable tape constructed with a durable Tyvek® top-sheet, a premium  butyl adhesive layer, and a specially designed split release liner
  • Allows for structural movements
  • UV resistan
  • Ensures continuity, compatibility and integrity with all Tyvek® breather membranes, AirGuard® AVCLs and other membranes at penetrations
  • 100% butyl adhesive performs over a wide temperature

Coverage 3,4 m² 0,6m²
Colour white (black adhesive) white (black adhesive)
Rolls per box 1 3
Elongation ca. 160 % (2,6 x of the original lenght) ca.160 %  (2,6 x of the original lenght)
Installation temperature > 0 °C > 0 °C
UV resistance 4 months 4 months

Tyvek® FlexWrap Installation Tyvek® FlexWrap NF: Pipe Ceiling Inside Tyvek® FlexWrap: Sealing Pipe on Roof Outside Tyvek® FlexWrap Tape: Sealing Penetrations on Walls Outside
Tyvek® FlexWrap NF: Sealing Membranes on Outside Walls Tyvek® FlexWrap NF: Sealing Wall Frames Inside Tyvek® FlexWrap NF: Sealing Around Windows Outside – Large Band Tyvek® FlexWrap NF: Sealing Around Windows Outside – Thin Band

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