VIVOSUN Highly Reflective Mylar Film Roll 4FT x 100FT for Outdoor Grow Room Indoor Decoration Aluminum Paint Coated 2 Mil Silver

Tardó mucho y al final en ves de esto me mandaron un Pizarro de vidrio q me quede por q la devolución era en EU y lo pedían por correo =(

Used to make DIY grow tent and it worked great! For the price, it was worth it to buy the 100ft roll to have extra for other projects or if I tear this tent down I can rebuild. Very reflective on both sides and strong but easy to cut with sharp knife or scissors. Good if you don't want to spend money on expensive grow tent and don't mind constructing one with cardboard and tape. Easier with 2 people to work with in large parts to avoid accidental creasing but it is very resilient to creasing in general.

This film works great as a reflective coating. Great quality and provides a near flawless and even reflective surface for things like grow rooms. One word of caution, however, is that light passes through it. So, if you also want to use it to block light and make a bucket opaque, for example, it will not work at all. I'm not sure how something can be 95%+ reflective (or whatever the spec is), and yet allow light to pass through, but it does. For most applications and people, however, this won't matter per its intended applications.

*****Update******: VIVOSUN Customer Service reached out to me and sent a replacement roll right away. They informed me that the first roll was a manufacturing defect. I am very pleased with this new mylar film roll. I am even more pleased in the level of service I received from VIVOSUN. I plan to continue purchasing from them whenever possible, knowing they stand behind their products. Well done! ________________________________________ (Previous Review): I am pretty happy with this Mylar film. Didn't experience any streaking, but I did notice that it is easy to create streaking/scratches if you are not careful. You will want to take care to unroll the film on a clean smooth surface; any abrasion may leave streaks/scratches easily. It is pretty thin (only 2 mil. thick), but it is surprisingly durable. I used a staple gun to hang some sheets. Even after some serious tugging/pulling, even stepping on the bottom, the film didn't tear or come loose -- there was some streaking/scratcges though with minimal contact. This film is not forgiving when it comes to scratches. I will say it is very reflective. Although, It is translucent. You can clearly see what is on the other-side, when looking into a lit room, from a dark room. It is comparable to some serious limo tint. 1 layer thick and it block almost all the light from coming through. But again, it is possible to see through it. This film is also very rigged. It doesn't fold well, it wants to retain its original shape -- but it does wrinkle without too much difficulty. Makes it a little difficult to double up. Honestly, not much light penetrates using a single layer though. This film would be much better with a black poly backing. I would recommend this to a friend as a cheap option for Mylar film. However, I would heavily suggest substituting the 7 mil version instead.

The product quality seems excellent, though I have not unrolled the entire roll for inspection. The only problem I encountered was some shipping damage. The first 20 feet or so were damaged (about the lower 4 inches) because the box it was shipped in was 52 1/2" long. This is one of those "Ahem, attention Amazon..." reviews. This was a 4' long roll. That's 48". It was wrapped in plastic, so as a shipper making boxes I'm allowing between 1/2" and 1" max for the wrap. So a 48 1/2" to a 49" box. IF you ship it in a box at all (a shipping tube is preferable for rolled damageable items, and easier to size). NOT a 52 1/2" box. Know what happens to a tight roll of something if you give it a chance to slide back and forth 4 or 5 inches? It tends to be a not-tightly rolled up roll and it will walk off the roll to one end. Which is what happened. And a good chunk of it was crinkled and damaged as a result. Now yes it's an amazon shipping issue, but...I received damaged product. So took off a star, which seems fair. Was it bad enough to send it back? In my opinion, the amount that was damaged didn't warrant the effort that would have been required. So...meh. So if you order this, you might want to add some special instructions to the order and request they package it carefully and without much end play. Now, the product itself, once I got past the damaged section, is great. The coating is smooth, reflective, and even, and, for 2 mil mylar, is pretty durable. If they can get Amazon on the ball, shipping-wise (honestly, it's a problem their shipping department can solve with a 10 minute training session on shipping these types of items) this is a 5-star product. Very high quality and I would absolutely recommend it.