VIVOSUN 6 Mil Mylar Film Roll, 4 ft. x 25 ft. Diamond Film Foil Roll, Heavy-Duty Reflective Film for Grow Tent, Warm House, and Grow Room (25 ft.)

I have a growing area in my garage & was looking for something to kind of insulate as well as be reflective and be easy to handle. This film/sheeting had the properties I was looking for: 1) at least 6 mil thick (.006), 2) diamond pattern reflective surface on one side 3) easy to work with when wrapping over PVC frame. I would have preferred a black backing vs white but that was not an option.The material is thick enough not to tear though not as thick as a pre-made grow tent. It does try to 'kink' a little when lifting or folding if the whole length isn't lifted up at the same time though the 'kinks' do smooth out once it's straightened correctly. The material is very easy to cut. I haven't put any holes in it so can't say how well they would hold against ripping. Once unrolled for a bit, the curl (from being on a roll) straightened out & the material hangs nicely.All in all, this is pretty robust material for a DIY growing tent. Personally, I think a pre-made grow tent is worth it as the material is thicker, it's fully sealed and has zippered openings & vents. The cost isn't that much more. However, I needed something taller than 6.5' which is the height of most tents.

When setting up the second grow room in my basement for my larger floor plants, I did the research to find out the most reflective surface for the walls of my grow room. This room had plastered walls with a stucco finish that collected dust and dirt. In my research, I found the options for wall covering and reflective qualities to be white flat paint, white gloss paint, flat (thin) Mylar, and diamond cut Mylar. Of these options, the diamond cut Mylar had the best reflective qualities and was the best for consistent reflection.The room to be covered is approximately 20" X 16", so I bought the 100' roll. This has been a "learn as you go" experience, but we can hang a panel in about 15 minutes or less now using staples to hold it to the wall. To hang on a wall quickly, put the roll on the floor, pull up the end to the ceiling. make sure it's hanging straight, and staple it at the ceiling. When you are sure it is hanging straight, cut it at the bottom using a metal ruler and a box cutter. Staple it at the bottom making sure it is taut and straight and then on the sides. I wasn't sure how much we would need when I bought the 100' roll, but it's enough to cover the walls in the entire room.As for the smell reported by a couple reviews, there is absolutely no smell on the roll I received. This Mylar is highly reflective as plants I have placed away from the light canopy are growing well. Having covered the stucco walls in this room with this Mylar, it looks like a shiny, light grey wallpaper that is very attractive and also very functional for my plants.The front of this Mylar is very reflective and the backing, although not cloth, is a plastic feeling material not much different than some of the lined. light-blocking curtains available. I don't think it would be machine washable, but this Mylar could easily be made into light-blocking curtains. It is flexible and hangs very well. If you plan to make holes at the top of panels, it would be best to use grommets so the weight of the material does not tear the holes. I am very happy with this Mylar for my purpose, but I'm sure it would be useful for so many other applications.UPDATE 07/09/20:I have had this Mylar installed in my plant grow room for a little over a month, and the plants seem to be doing better. My avocado trees aren't under lights, but are growing and doing very well with only the reflected lighting.UPDATE 7/15/21:I have had this Mylar installed on the walls of my grow room for over a year, and I still love it. It has held up very well and is impervious to water. Every now and then, it has been splashed with water when I was watering, and the water just ran off. A few times the water left watermarks after the water dried, and I just wiped them off with a moist paper towel. This Mylar still looks every bit as nice as the day we installed it. It was definitely a worthwhile investment.I hope this review was helpful for you, and I will update the review if my opinion changes.

I purchased this hoping to attenuate harmful EMF's coming from my Smart Meter. I cut 2 pieces from it: one I hung on the inside wall, essentially behind the meter. (an adjoining wall prevented me from placing it directly behind the meter). The other will complement a piece of aluminum screen that sits under my headboard in the 2nd floor bedroom directly above the meter (I was having heart arrhythmia at night). I did a before and after test with my RF Meter, and showed a reduction of radiation (on the first floor), but will need to do additional testing when time allows, esp in bedroom, to calculate effectiveness. The 6 mil is VERY nice; very similar to the thickness of a quality plastic shower curtain liner, which the white side feels exactly like. But it will crease, so handle carefully to prevent lines. That being said, I believe it is quite sturdy enough to tolerate metal grommets for hanging with shower curtain hooks as another reviewer suggested, with more probably better to distribute stress. I used four ratcheting tarp clamps that have a rope hole at one end, and hung the piece with nails thru the rope hole. That's what desperation looks like! I like that the white backing is less obvious, now just need a solution for my tin foil hat LOL! Actual Measurement of piece: 47.5"(inches) wide x 12.5' (feet) long. I was so grateful for the extra 2.5 feet! Item arrived undamaged rolled onto a sturdy tube, wrapped in plastic and inside a long box, so it is pristine with no folds. If meter numbers are good, I will be buying more of this very nice product. Can't think of any cons. WIll answer any questions if I can, and will update with accurate numbers. At least at night, turn off your wifi routers and get your cell phones off the night stand away from your head! Me, I'm going all wired so I can continue to live in my house.