Car Heat Sound Deadening Insulation Mat, - 197 Mil 6.5 Sqft Automobile Sound Deadening & Heat Insulation Material for Auto Hood Engine Roof Door and Trunk,Aluminum Foil Finish ,40 Inch x 24 Inch

Used this to act as insulation on my keyboard (Keychron Q6 Pro) and it worked PERFECTLY. I just cut it down to size and installed it inside the keyboard case and...YEAH, nice "Thock" sound now. Lots left over, but I'll find a home for it 😊

Works well it's doing what it's supposed to do great investment

This has held up nicely. I used this as the backing to a custom made vinyl floormat I made for my 1928 Ford Model A. It is the perfect thickness and gives the mat the protection it needs. Being the underside of a floor mat, I was unsure how it would hold up, but i has. I often have to bend and move the mat, ant the adheisive has held. This was an inexpensive upgrade to the vehicle, without compromising the integrety of the car.

Thinner than expected. Glue backing works

I love these I have purchased twice will keep buy them.

Buena calidad me funciono muy bien

Decent product, does not measure 40”x40” it’s actually 38.3 x 38.3 so if you need 40 inches be aware, they must be measuring this like 2x4s.

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.