Car Heat Sound Deadening Insulation Mat, - 394 Mil 10.8 Sqft Automobile Sound Deadening & Heat Insulation Material for Auto Hood Engine Roof Door and Trunk,40 Inch x 40 Inch, Aluminum Foil Finish

I needed to replace the failing fiberglass insulation that was original in my 1996 motorhome. The original insulation was providing some sound/heat protection inside of my generator cabinet but it was falling apart.After cleaning off the failing insulation and adhesive, this new insulation seemed to stick well to the interior cabinet walls.I could easily cut this insulation with my scissors but it does make the backing paper try to shred at the cut edges instead of peeling off in one motion. Just being careful I could ensure that all of the protection paper came off to allow full adhesion to the metal walls. It was fairly easy to attach and turn corners.NOTE: this item could probably be stretched to the advertised 40" x 40" but I wanted to install it in its relaxed size of 38" x 38". I had plenty to cover the inside of generator cabinet fully.It did reduce the noise some from my generator. I guess I could also install more of this insulation on the outer walls of the generator quieting down even more of the noise inside my motorhome.So far it is sticking well but if things change I will edit my review of this product.

Yes it’s smaller than 40” however, it worked for our application. We purchased 2It was not on rolls as shown on first picture. It is folded like a blanket. We purchased the thicker padding. The adhesive is strong. Easy to cut. We have not tested it for sound proofing or heat yet. I’m sure it will make a big difference. In our 49 truck.

This insulation reduces a good bit of sound from the cab. It’s very easy to cut and it’s very sticky. You can cut it to fit anywhere definitely worth the money I buy a bunch at a time and use it for everything.

The hood insulation on our van had a mouse chew it up and it was hanging loose and ripped.I carefully removed the old blanket and placed it on the drive and marked around it and put marks where the anchors go in.The unit I got was not quite large enough so I did it in two pieces. That ended up actually being less awkward than if I'd done it in one piece.I cleaned the underside of the hood, peeled the paper off and it fit nicely. I used a set of plastic retainers and pushed them into their positions and so far it's holding well.

I used two of these; one each over the wheel-well (interior) of an old van being converted into a camper. They are easy to apply and stay put once in place. Plus, they cut the sound down amazingly well.

It works and it's OK for what you get however I don't know if it was just the one I got but the string was fraying when I got it also it was not the right size but hey you get what you pay for

I used this material to quiet my RV generator. Easy cut and install on side wall because it has sticky side and is somewhat heat resistant.Happy with what I accomplished and waiting to see the longevity of installation.

This product does what they claim. Peel the paper off the back and it sticks real nice.