3M Outdoor Window Insulator Kit, 2-Window

One out of 2 packages was completely unusable because the plastic was fused together and although we've used these products for years without any problems, these ones keep coming off. The sticky tape condition was compromised. Have had to order more of the window kits (and pay significant shipping) but hope they arrive in better shape or next time we'll try a different product or order from elsewhere.

I didn’t buy this for a door but rather double windows that are larger than the window package 3M has. This product worked perfectly for the winter months! I didn’t expect it to stay flat as it’s normal for the plastic to become one big bubble when the barometric pressure in the atmosphere rises, so I left some slack in it when applying it. I also did two lines all around the window of the adhesive tape that comes with this item. Also - I attached it to the wall outside of the window, not the window pane as I felt this was better coverage and less likely to leak. One thing that I think most every one can agree on - I wish the adhesive was stickier! Had it not been for the two rows of the tape then it definitely would have come undone.

This was the worst item I have ever purchased online. The box had been opened there was no tape in the box, and it certainly was not the item as described. It was a scrumpled up sheet of plastic that was even cut to size. Ib think someone just put a random piece of plastic in the box. Absolutely disgraceful.

Managed to fit the 3m to my exterior windows (as supposed to be for) ok, however after a few cold nights it is starting to mis shape & now looks awful. Worked well at the beginning. I would try the d-c-fix window film as that make is great. Made in Europe too.

Oct 2019: Purchased this product to cover large screens for older, larger condo insulated windows (30" x 50"). Was a little surprised that these were not heat the shrink type that I've used before for interiors. But the product was easy to install (took me about 15 minutes per screen), was easily able to stretch out wrinkles, and no problems unfolding / peeling the plastic open. There was actually enough double sided tape for 3 of my windows, plastic covered two. I've got some larger windows still to do, had to buy one pack for each of those, using the plastic sideways. I did my best to secure the tape to window (pressed around the screen frame with my thumb several times) and similarly the plastic once it was affixed to the tape. If it holds up, should do a good job creating a second vapor barrier and cutting down on drafts. May 2020: Removed the plastic this afternoon. First, all six plastic sheets were intact after a New England winter. Second, plastic removal was beyond simple - the plastic peeled away from the tape easily. The tape needed a little encouragement but by and large came off the aluminum frame in one piece and with no sticky residue. I'm a little shocked at how much of a non-issue removal was. I'm a fan for life!