POLYGUARD WindowSeal Window and Door Flashing Tape, 4 in x 100 ft Roll, 20 mil Thick, Self-Sealing & Self-Adhering Waterproof Barrier

Polyguard Poly Wall WindowSeal Flashing Tape is an absolute must-have for any construction or renovation project! The 6" x 100' roll provides ample coverage, and the 20mil thickness feels incredibly robust and durable. It's truly waterproof, self-adhering, and self-sealing, making installation a breeze and giving me complete confidence in its protection for window and door frames. This tape is top-notch for ensuring a tight, waterproof seal!

good tape for flashing windows

Doesn't stick very good when cold, but it's a good product to use when warm

Perfect for what I wanted, sealant tape over window nail on flashing.

I needed window seal for new window replacement. Window flashing tape is so expensive so this offered me a great alternative that is just as high in quality but for a more affordable price. Definitely worth the purchase as it holds well and looks great.

This tape works far better than what we can buy locally at Home Depot or Lowes. We use it primarily for nail fin windows for wood frame openings and have yet to have a bad experience with it. We'll keep buying it as long as they keep selling it on Amazon.

Not very sticky had to use staples to hold up

It worked like it should! It stuck to the wood with no problem.