Frost King CF42X Foil Backed "No Itch" Natural Cotton Pipe Wrap, 3-Inch x 1-Inch x 25-Feet

I used this product mainly for noise reduction in my vehicle, it make a good difference, I also noticed a reduction in the heat on the vehicle floor, it's strong and good foil tape bonding....

This was easy to use and mess free!

I used this to add some insulation to the back of an interior door that's facing a small unfinished area. I really like that it's recycled denim which is not only cool but safe and comfortable to work with and be around.It's nowhere near 1" thick although it did expand quite a bit once I loosened up the roll and let it sit overnight. I took my review pictures a few days later and it had not expanded further. I may consider doubling it up.I'm not sure how much impact it will make but I saw that the interior side temperature of the door dropped by 9 degrees Fahrenheit after installing it while the outside temperature remained the same so I'm impressed so far.

This is not for high R-value, it will not expand beyond a half inch, but if you're looking for a good thin layer of insulation to add where it can be, this rocks. It's certainly best for hvac and water heater applications, but I actually used it for layered insulation on a bay window install- under trim and between a layer of thermal cork. Really easy to cut and work with, no yuck feeling, and effective.

Works well to insulate a portable air conditioner hose.

TL;DR: Product comes very compressed to about 1/4 inch thickness out of the box reducing its effectiveness. It needs to be "fluffed" with some time and effort by you, the customer, to achieve the R Value of 4 at 1 inch of thickness (what the specs are listed as).My biggest problem with this product is, as others have mentioned, the thickness the insulation comes in out of the packaging. Because it arrives in a tightly wrapped roll, when taken out of the packaging and laid out flat, the thickness of the insulation averages about 1/4 inch. The packaging lists the thickness as "1 inch", but clearly it is not.Why should you care? The effective "R Value" of the insulation decreases (it becomes a less efficient insulator) as the material is compressed. So you're not getting the full insulating performance of this material the way it comes out of the package, and the packaging makes no mention of needing to "fluff" out this stuff. I doubt it would fluff up enough over time on its own to reach the stated specs, but I don't know for certain.So how can this be fixed? Here's what I did:1. Turn on some mindless television and get comfy2. Take the product out of the packaging, roll it so you can work on it while you're parked on the couch3. The insulation seems to be made up of a thicker bottom layer / sheet attached to the reflective material, a matching top layer, and sandwiched between the two is a looser weave of insulation that can be expanded with some effort. Go around ALL the edges of the piece you're working with while gently (and slowly) pulling up on that top thicker layer / sheet of insulation. Pinching that top layer and pulling up softly worked well for me. The sandwiched section being expanded kind of looks like a small stretchy elastic accordion while you're doing that, pretty satisfying in weird way.4. Once you've got all the edges fluffed out, work your way down the roll pinching and fluffing the top layer again, but this time focus on the middle of the product so that the middle is about the same thickness as the edges you just fluffed. In this step, you're trying to get a generally uniform thickness in the middle of the product to match the edges. I just found it's easier to do the edges first.5. Repeat steps 3 and 4 until it's as thick as you want it or can get it. This isn't a fast process, but it's oddly enjoyable. This is essentially cotton insulation, so it's safe (and weirdly fun) to touch.6. Admire your thicc work

Needed to extend fan exhaust and this did the trick. Super easy to install

I got this to use for wrapping my water pipes against freezing, the rolled narrow width pipe insulation is a pain to work with but with this I'm cutting it by unrolling just enough to cut across the roll side to side into about 4"x15" strips and wrapping the pipe so that the 15" is lengthwise along the pipe and the 4" is wrapped around, secure it to pipe with 2 or 3 small pieces of the aluminum tape to hold, then 3 more strips to hold it after you wrap it around to meet together slightly overwrapped, then use one long 15" strip of the aluminum tape to seal that over lapped edge against moisture and mice who love the insulation. It's much easier to wrap pipes this way, more economical imo and looks neat when done, also the foil backing on this is thicker than the rolled stuff, much thicker! I'm also thinking of using this to repair the damage done by rats to my engine hood insulation mainly due to the thickness of the aluminum, I had used some from the online auto store JCW prior to getting this and the aluminum on that was pathetically thin in comparison. Whether you plan on wrapping ducts or using it for other things where you need insulation, you will be happy with this product. PS, a reviewer talked about the plastic sheeting running out, I don't think it's meant to be used as it comes off easily and as he said doesn't run the entire length, I don't think it's a vapor barrier cause any of the rolled pipe insulation I've used in the past doesn't have that and this is stuck to the aluminum side not the material.

It does what it’s suppose to do, wrap pipe and keep it insulated

Wonderful product that is easy to install and works great for tight spots when insulating a camper MiniVan. Very impressed with this product and would recommend it for sure.

great product, fast service, easy to install.

I have two different types of heating pipes, and I used this product for 2" pipes. It does a good job and insulates the pipe very well. The only problem is, I had to use lots of rolls and cost me more compared to the foams for 1" pipes.

I like the product with the exception of how it wraps around bends in my vent pipe. The foil backing should be more pliable to allow the wrap to follow elbows in the duct work. As it is, coverage in the corners is so-so and duct tape or similar has to be used to hold the material in place. Try to force it too much and the product tears.