XFasten Transparent Window Weather Sealing Tape, 2-Inch x 30 Yards (50.8mm x 27.43m), Clear Window Draft Isolation Sealing Film Tape, No Residue

It works well. I was surprised by it's flexibility and its ability to stick into tight corners. It's nice and thick, so it seals up well. It has a smooth, semi-gloss texture and transparent, so it doesn't stand out. It feels almost rubbery. I used it for the output panel from a portable AC, and didn't need to use a whole lot, so I expect the roll to last a long time. I'll update if something goes really wrong, but so far I am glad that I bought it

We had window ac units that were inserted improperly and were struggling with rain and bugs coming through. I bought this tape to assist with this issue. After heavy application, I do mean we layered up and basically built a wall around the units. I was pleased to find it kept out 90% of the bugs and the rain. It held on for about 5 months, with very little modification and reapplications. It was a great solution to a short term fix. Taking off the tape is a pain, the adhesive is very strong and can take up paint and leaves residual goo on items. Scrubbing and wiping it helps very little. I wouldn’t use this to help with thermal regulation, I’d use for a pure physical blockade. For reference we used most of a two pack of this stuff for two window units. Depending on your situation I’d say buy a roll per window.

We have an old house. Some of the windows are a little, shall we say, "gappy". In some places this is approaching half an inch, or about a centimeter. To apply, I first dust off the area. If needed, I clean with rubbing alcohol and paper towel, taking care not to leave any bits of paper or other residue. Sometimes this takes multiple passes. Then I simply cut a length, keep it under tension to make sure it doesn't stick to itself, line it up over the gap, and press in to apply with even overlap on both sides of the gap. It sticks and seals very well, and isn't particularly visible though we do keep the blinds down which covers it most of the time. There is some flexibility and stretch so if you need to go around inside corners to some degree. Is it expensive? Yes and no. It's better than every other product I've used, and I think it more than pays for itself. And that includes repainting, which is almost always necessary because though the adhesive doesn't leave much residue if any, it will remove paint especially paint that hasn't been properly prepped. So if you don't need to repaint, this is a no-brainer. Even in my old house I'd rather have to repaint than replace the window (so I should probably fix it at some point).

I used this on a couple of older windows that always leak a little cold air, and it actually helped more than I expected. The tape is pretty transparant, doesn’t look messy, and it goes on smooth if you take your time. Repeat, you MUST TAKE YOUR TIME. I also liked that it didn’t leave gunk behind when I had to adjust a section so thats a huge plus there. For basic draft control, it does its job without turning into a headache. The only thing keeping it from a full five stars is that the isolatoin could be a bit stronger on really windy days. It still helps, just not as much as a full plastic window kit. But for quick sealing or small gaps, it’s great. Overall, it’s a solid option that adheres well and doesn’t trash your window frames. Good price when on sale. I think I'd pay a little extra for window film next time.

It took me a while to choose the right tape for my AC placement & I fully support my choice on this product. I’ve used it for many other things around the house. It’s water proof & easy to use. I think it will come in handy so I’ll keep it as a go to.

Quality tape.

Works....BUT mess if you need to remove. This works as intended on a couple of our old windows for winter. BUT, come spring this has been a MESS to remove.....left windows sticky....we have spent DAYS of cleaning off....with Mineral Spirits, Nail polish remover, Goop Off - you name it. We open our windows in good weaher...so we will NEVER use again. We are still finding sticky spots. Not worth it......Use heavy curtains is best unless you are one to never open your windows for fresh air.

I’ve purchased and used this weather seal tape last Winter and it works perfectly. When I needed to remove it, it comes with no problem and minimal residue if any at all (even after exposure to heat and cold.) I even used this on the bottom of the window seal OUTSIDE assuming it would come up, didn’t even curl around the edges! Stayed perfectly sealed! Great price, I use it all around my apartment to seal widow cracks or opening around AC. As long it’s on Amazon I will continue to buy in the future.

Perfect for sealing the edges between window and AC vent kit. I also prefer that the tape is weatherproof and transparent leaving a seamless look.

excellent vraiment. Si les mousses ne suffisent pas pour isoler une fenêtre, cette bande semble l'ultime recours. Colle étonnement bien sur bois, plastique, pierre. Plus grand chose ne passe pour l'instant. Faut voir si cela tient comme cela pendant des semaines, alors je peux qualifier cela de produit miracle pour isoler , couper net les courants d'air. Pas trop cher, en plus

Compré esta cinta adhesiva aislante transparente porque por el marco de una de las ventanas del salón entraban muchas corrientes de aire, debido a la mala calidad del cerramiento y a la falta de puente térmico. En invierno se notaba bastante y hacía que la calefacción se encendiera con más frecuencia. Tras comparar varias opciones, me decidí por esta cinta porque ofrece más metros y mayor ancho que otras marcas por un precio más ajustado, algo importante si tienes varias ventanas o marcos que sellar. La colocación es muy sencilla. El adhesivo es fuerte, pero durante la instalación permite despegar y recolocar ligeramente si te equivocas, lo que ayuda a dejarla bien alineada sin estropearla. Una vez colocada correctamente, queda bien fijada. Después de varias semanas de uso, las corrientes de aire han desaparecido. El cambio se nota claramente en el confort del salón y también en que la calefacción entra menos tiempo, algo que se agradece en el día a día. En cuanto a la resistencia, ha habido días de mucho frío con condensación en la ventana, y la cinta no se ha despegado ni lo más mínimo, ni siquiera al pasar una bayeta para secar el agua. En ese aspecto, muy buen resultado. El material tiene buen grosor y, al ser transparente, apenas se nota visualmente una vez colocada, incluso sobre marcos claros, lo cual es un punto muy positivo. En resumen, es una solución sencilla, económica y eficaz para mejorar el aislamiento de ventanas sin obras. Muy contento con la compra.

If you don't mind cleaning over where the tape was for 1 hour after removing the tape this is fine. I don't know why but a heavy residue was left and incredibly difficult to clean. This is definitely not why we bought this product. I'm not sure if there are many limitations on how long you can leave the product on for?

Je suis vraiment satisfait du ruban d’étanchéité XFasten. Il est parfaitement adapté pour isoler mes fenêtres et réduire les courants d’air. Voici mon retour sur ce produit : Facilité d'application : Le ruban transparent est super facile à poser. Il se découpe facilement et se colle sans difficulté, même sur des surfaces irrégulières. Il n'y a pas besoin de compétences particulières pour l'appliquer, et il adhère parfaitement à la fenêtre. Efficace contre les courants d'air : Depuis que j'ai utilisé ce ruban, j'ai constaté une vraie différence. Les courants d'air qui passaient par les fenêtres ont disparu, et la température dans la pièce est plus stable. Cela m'a permis de réduire l'utilisation du chauffage, ce qui est un vrai plus en hiver. Transparent et discret : Le fait qu'il soit transparent fait qu'il est pratiquement invisible, ce qui est un gros avantage si vous ne voulez pas que cela altère l’apparence de vos fenêtres. Il est discret et fait le travail sans être visible. Aucune trace ou résidu : Une fois que je retire le ruban, il ne laisse aucun résidu collant, ce qui est essentiel pour éviter de détériorer les fenêtres ou les cadres. C’est un gros point positif par rapport à d’autres rubans que j’ai pu tester. Grande longueur : Avec ses 30 yards (environ 27 mètres), c’est vraiment suffisant pour couvrir plusieurs fenêtres, ce qui est parfait pour ceux qui ont plusieurs zones à isoler. En résumé, le ruban XFasten est une solution simple, efficace et discrète pour isoler les fenêtres des courants d’air et améliorer l’isolation thermique. Il fait exactement ce que l’on attend de lui, sans laisser de traces ni causer de tracas. Je le recommande vivement à toute personne cherchant une méthode facile pour améliorer l’isolation de ses fenêtres.