BDF NSN70 Window Film Transparent High Heat Rejection & UV Cut (Very Light) - 24in X 24ft

One side of my new build house is south facing and after multiple rounds with the heating and ac folks I decided to try this film to reject the heat. I’ve completed the bottom half of three windows and wanted to share how clear this goes on. It’s a little difficult to work with as it’s not very forgiving- even without losing control of it I still have one or two little spots where it looks like it’s been folded and therefore creased. I saw another review where it apparently went away after a few days so I’ll update this with this review to confirm, as well as give an opinion of whether or not the heat is truly reduced. Update: it’s been about 2 weeks and I really like this product. My extra ecobee sensor indicates that the pantry, which always runs hot (74-76 degrees when the thermostat is set at 70), is registering at 71. As I worked through other windows I tried two methods of install. The first was how the instructions say to put them on, by slowly peeling the product backing off as you worked to attach to the window, and the other way I tried, was I laid the precut piece on a table and peeled it all off there, and then I attached in one fell swoop. Option 1: it takes about 20 minutes to apply, and it appears there are little to no bubbles under the film. The film does peel off periodically as you are installing and will fold over on itself which creates creases that do not come out. Over time they will minimize but if you’re like me, you’ll see them. No one else will notice it, but it drives me crazy. I also noticed there were little bubbles and almost like a smeared effect on one or two windows at the bottom and the bottom corners. Overall, it gives a clean look but definitely leaves a few blemishes, even after a few weeks of adhering. I suspect it’s because I couldn’t really get the back of the film as wet as the window’s because It was already so close to the window, creating a more dry, and therefore more difficult hang. Option 2: after I peeled the film backing off, I would apply a lot of the spray to both the window and the film, then line it up from the center and let it just do its thing. It behaves a lot like tempered glass for a phone so if you start in the middle of the glass and let go, it attached quite nicely to the window all by itself. Once it’s on, I then smoothed out as many bubbles as I could. I did panic a bit because it appeared smooth but when I came back an hour later I saw a lot of bubbles. It took about 7-10 days of leaving it alone, but they are completely gone now and the bottom and corners look great. You cant even tell there’s film on the windows. This way took me closer to 12-15 minutes once the film was cut so the more efficient install time also made it nicer to use this option.

Happy enough with the results that we ordered more. Not difficult but does tak a bit of practice to put on. The film is pretty delicate. It would be nice if they attached it to a cardboard tube. I dropped it and had to discard some due to puckering/dimples where it creased when it hit the floor. That being said it works well once it is up. The window is ~5 degrees warmer compared to one without film (it should be as the film is absorbing heat) and the floor where the sun hits is >5 degrees cooler. This is for the clear film with UV. No difference in the color of the window.

I bought this film to apply under the Skylight that I just replaced. My old Skylight was cracked, and since it's 50 years old, very few new Skylight will fit. I bought the only one I could find, and I was not so satisfying with it. It was medium grey, color and not as dark as my old Skylight. My house is already hot as hell with the old Skylight, so imagine that with a lighter color Skylight. As the sun shined through the Skylight, it left a large rectangle moving through my carpet, then my staircase, then on to the wall. Looking at it was like looking at a 150-200 watts incandescent light bulb directly with the new Skylight, so I had to use my hand to cover on side of my face every time I walked by, to keep my eyes protected. it's that bad. And here is where the tint film came in. I applied 4 layers of this film, BDF NSN70, directly under the Skylight because it was for interior use. I cut each layer in 3" stripes and overlapped them so that they could conform to the curved surface of the Skylight better. It was still imperfect, but looked more decent than apply the whole film on the curved surface. It still didn't look good. Then I went to Home Depot and bought a 2x4 defusing panel that you normally installed on the ceiling below the fluorescent lights. This was done to defuse light better, and also make the Skylight look good since the flaws wouldn't show up through this panel. I then installed the Skylight with the pannel sandwiched in between the Skylight and the roof, rough side of the panel down. The result: ABSOLUTELY AMAZING !!! I just couldn't believe it! This cut the heat absorbed through the Skylight by 95%. You read it right, by 95%. I stood directly under the Skylight with the sun shined directly over my head, and I can feel the heat on my skin: It was only VERY SLIGHTLY WARMER THAN MY OWN BODY TEMPERATURE and the outside temperature was 85 degree. The sun shine had been cut down so much thru out the day, and the light color was actually WHITE all day long, not YELLOW as it should be any more. It was like looking at a 40 watts fluorescent white light bulb from a distant. The light was slightly darker before noon, and from noon on, it was at full capacity, which was gentle and very easy on eyes. For me, this was perfect. If I wanted it brighter, 3 layers would do that, with a little temperature gain, of course. So, the template now was the temperature of the house coming from doors and windows, but no longer from the Skylight. The defusing effect of the panel also dispersed the light out such that it created a more even light through the area, and I no longer saw the sharp rectangle sun glow on the wall anymore, that was the end of it. Needless to say, the result was sort of unexpected because from my calculations, I never knew that it would turn out like that, but hey, who is complaining? An important thing I learned from this exercise is this: If you want to use a film for heat blocking, try an MIRROR EXTERIOR FILM first. I used the BDF EXS35 for my windows and doors that I wanted to see more out of those, and BDF EXS15 for my master bedroom to cut the heat to a minimum level so that I can sleep in it in the afternoon. This will cut the heat by 60% and 80% respectively. I plan to apply the BDF NSN70 to the interior of the same glasses to cut the heat down another 15% and 8% respectively, making the heat rejection totals to 75% and 88% respectively. This will bring the temperature down further, but affects the views very little. The BDF NSN60 will not be that much more gain to consider. Note that I mentioned MIRROR FILM here, preferably the SPUTTERED type for EXTERIOR use, and NOT the regular black or dark gray films. Black color attracted heat, so, initially the black film blocks heat by blocking sun light, but given enough time and the right sun angle, the sun light turns into heat, and heat will start to radiate into the room because the film only blocks light, not heat, so the later part of the day (4-6pm), it will be the hottest. I used to come home from work almost every day and it was ok, but now I stay home all day everyday, so I realized how much discomfort it was with the black film. And from the experience I gained from doing the Skylight, I no longer again tint my glasses with black or dark grey films. Hope my experiments here will be of some helps for those who needed it.

Installation was very straightforward. My wife and I worked as a team, and we couldn't be happier with the installation of the film over 6 windows. We have one room in the house that the windows get full sun and that room is 5 to 6 degrees warmer than any other room in the house. Unfortunately, after the installation the product did not help at all. We still see the temperature 5 to 6 degrees warmer than any other room in the house. The air conditioning air coming out of the HVAC ducts seem to be coming out at the same force as the rest of the hose. Just very disappointed in the final result.

Easy install, make sure window is clean. We did our Sunroom which gets hours of western sun. Cut temps by 7 degrees, room is much nicer to use. Use lots of liquid

Product itself is okay. But installing this was a nightmare. I screwed up so bad and it looked so bad in the end that I just had to throw it all away. Was blurry when I tried to look through it, had so many air bubbles and then creases when trying to get them out. Kudos to those who can actually install this! You guys are magical!

Easy to apply. Lowers window heat by 5-10 degrees—depending on how the window faces the sun. Clear, clean view. I’ve also used this company’s security window film. Great products!

I have installed GILA window tint on all of the windows in my home (privacy frosted and platinum for heat rejection) and have not had the types of issues I have with the BDF tint. BDF tint feels slightly thicker than GILA's, which I thought would be a plus. The issue comes from bubbling. I've used the proper installation technique and even watched BDF's videos to ensure their application wasn't any different but ended up with a ton of bubbles that crept up after the installation. During the install, I remove all of the bubbles and properly apply the film using the properly mixed solution and squeegee. As it is drying, new bubbles form under the tint and they do not disappear during the curing process. There is no trapped dirt or dust in these bubbles. I was issued a new roll and when I removed the first installation, it was liquid that was inside these bubbles. It is "normal" for small liquid bubbles to form under tint and over a few days/week they should cure and dry. This is not the case with this particular tint. Pros: It is easily removable and doesn't tear very easily without being cut first. Color and clarity were perfect for me. Tool set they give is a plus. They give a nice fresh razor and squeegee inside the roll. Cons: I know it's easily removable because the first installation started to bubble and they would not go away after several weeks of curing. +1 star for amazon's customer service I tried to get a photo of the types of bubbles I was talking about. They're clear bubbles, not white. In auto tint, clear bubbles disappear as the liquid underneath dries/cures. With GILA, it does the same. This was not the case with this particular BDF tint. I do not work for or am associated in anyway with GILA. That is the only other brand product I have experience with.

I have an east facing glass door (double-pane glass measures 2 feet by 6 feet within the wooden door) with nothing blocking the sun but wooden blinds on the inside of thr glass. We live in a semi-desert area and the sun is incredibly bright. Using an infrared thermometer, temperature on the inside of the blind (facing the glass) before installing the film was 120 degrees farenheit. Of course, installing a film like this can be challenging, especially for the first time. Watch the videos, make notes if necessary, and use plenty of solution. Clean the window, then clean it again, and again. Use a razor scraper to make sure there are no tiny spots of paint or anything on the glass. Then clean the window again. Take your time, and if you can get some help, use it. I did my door by myself and the film went on without a problem. I spent a good hour afterward, pushing the solution out to the sides. Okay, the good news - temperature of the inside of the blind after installing the film was 105 degrees farenheit, a drop of 15 degrees! My room is quite a bit cooler, the view through the glass is still clear, and the film is virtually unnoticeable from the outside. This film has made a big difference in the comfort of my home, so much so that I plan to install it on all of my east and west-facing windows (we have none facing the south) . This is a great product and works as advertised. Did I mention how important it is to clean the glass? Remember - clean the glass!!!

No se pega con facilidad y no tapa mucho

Now that we are well into summer I haven't noticed any difference in temperature at all (despite other reviewers claiming significant temp drops). I found the product tricky to handle and install and I would rate my handyman skills as well above average. Absolutely nothing whatsoever can touch the adhesive side once the backing paper is removed and the windows themselves have to be spotless without any debris, paint spots etc on them or else it will result in a large air bubble. The squeegee tool included was far too small and at times left scratch marks on the window film. If I had to do it all over again I wouldn't have bothered installing this.

Used this on rv windows to help them from cracking.

Does NOT work - I want a refund for this waste of time and money.