3M 2170W-6 Outside Window Insulator Kit

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!

I was able to do 2 of my windows and used whatever was left to tape up and cover a third window. I wasn’t sure this was going to work but it is amazing how well this has worked. I no longer feel the cold air coming thru. I’m poor so I can’t afford to be buying fancy windows, but I’m glad I’m poor. I used to work for someone rich that didn’t care about her employees and that’s not how I’d want to be. Better to be poor than to have money and be mean.

Used rubbing alcohol to clean frame. Its readily available, inexpensive, and it dries fast. Real fast. I used a heat gun for shrinking film (it's what I had handy). Use caution when installing film. It is very thin and easily torn. A small tear is not the end of the world (of course things would be better without one) Installed it on every widow in basement. Area went from being one of the coldest to one of the warmest (I have temperature sensors throughout house) Installed correctly you can barley tell its there. At 3 feet you can tell if your looking directly at border. Looking through window , like looking through another sheet of glass.

This will be my second winter installing these things. Note there are films you apply to the exterior of the window and films you apply to the exterior. These go on the EXTERIOR. I have small children and don't want them fiddling with the films and i worried about interior films fitting under my Venetian blinds. I prepared for these to be a major pain in the posterior to install and braced myself for hours of the film folding over on itself and working out creases. Boy was I wrong. It actually wasn't all that bad. I covered nine windows in about an hour or so. If there is a glaring crease, it is easy enough to pull the film off of the tape and straighten it out. They held up from early November to May with no punctures or tears. It has the pliability of saran wrap (it stretches) but is not adhesive so it doesn't get stuck to itself. You are not supposed to install them if it is below a certain temperature outside (I think 50 F), so don't procrastinate. I don't know what happens if it's too cold--I'm guessing the adhesive doesn't adhere as well. They tear off in one easy piece in when you are ready to take them down but the double-sided tape will stay attached to your house. I should have scraped it off but let it stay there so I can't say how hard it is to remove. My gas bill dropped in half but I don't know how much to attribute to these alone because I added these, along with a programmable thermostat and power outlet insulators, at the same time.

Was real bummed about this stuff, as it went on great but within a day it was loosening and not staying tight. I thought with it being 3M it would be real good, but wasn't what I hoped. Loved the fact you can put it outside and still see out the window.

I installed this window insulation kit in just a short time, and the instructions were easy to follow. The film went on smoothly and became nearly invisible after shrinking it with a hair dryer. It gave the windows a clean appearance and was a practical addition for improving insulation during colder weather.

I purchased 6 of these kits to cover all the windows in my home. These are the exact same kits I used last year with excellent results. This year, I applied the product on a warm CA day (72 degrees F). They went on easily, like last year. Unfortunately, every single window covering pulled off within 24 hours. The adhesive tape was a complete failure. No rain, no drastic weather changes, only product failure to blame. I ended up removing them all and throwing them away. Perhaps they changed the adhesive? I've always had good luck with 3M products before, but this was a complete waste of money. Never again. Beware.

Worked great! Easy to put up. It's been up a short while and it has not shrunk at all.

I applied it indoors, although it states "Outdoor use only". Fitting was easier than expected. The double sided tape worked perfectly. I was worried about the initial wrinkly look but when I applied the heater it looked clear like glass. I first tried a hair drier but found that a fan heater on 1 kw worked perfectly and easily. You cannot tell the window is insulated. The cold downdraught from the window has stopped. Fantastic value. Highly recommended.

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.

facile a poser et bonne tenue a l'extérieur ; hélas beaucoup trop de condensation.

L’articolo è di buona qualità. Si tratta di un rotolo di nastro biadesivo e un telo trasparente (tipo pellicola trasparente da cucina ma molto più resistente). L’ho installato su una vecchia finestra con vetro singolo e infissi di legno, sia all’esterno che all’interno, creando due camere di isolamento extra (per il lato interno ho dovuto comprare un nuovo rotolino di biadesivo, di un’altra marca ma sostanzialmente identico). Considerando la semplicità e economicità dell’intervento, la differenza è incredibile. La temperatura dell’aria vicinino alla finestra é aumentata di 2-3 gradi, e gli spifferi di aria gelida sono meno percettibili. Ovviamente l’aspetto estetico ne risente. Per noi non è un problema perché si tratta di una finestra che comunque non apriamo mai e ha sempre le tendine chiuse. Ottimo rapporto qualità/prezzo!

Worked as instructed as best I was able to get it straight. Mine came as expected, I wasn't always neat but when I was it worked as intended. No complaints. Prevents drafts and heat loss. Didn't think it could, but it did.