Car Heat Sound Deadening Insulation Mat, - 197 Mil 10.8 Sqft Automobile Sound Deadening & Heat Insulation Material for Auto Hood Engine Roof Door and Trunk,40 Inch x 40Inch, Aluminum Foil Finish

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.

Works well in our 1967 Chevelle. Easy to install and helps to minimize the sound and reduce heat inside the car. Would buy again for future rebuilds.

Rodents had started tearing apart the engine cover insulation and using it for nesting (Mazda 3). This provides good insulation that looks and works great, stays in place and doesn't provide nesting material. Would work for insulation attached to the hood as well.

It is somewhat too flexible at time but a great alternative to buying an expensive $150 OEM insulator.I cut it to shape and fixed it together with aluminum tape and then push pinned it in and it was good to go.

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.

The adhesive on the back isn't as sticky as advertised. May need extra glue in dips and corners or even the edges. Other than that, it was easy cutting and helped reduce heat and sound.

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.

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.