Design Engineering Boom Mat 32" x 54" x .75" Under-Hood Thermal Acoustic

Great product. I used this material to replace old insulation on the engine cover of my class A RV. It appears the original insulation was this same stuff, except it was 12 years old. After installing this insulation we traveled about 3000 miles and noted two major improvements First, the road noise was dramatically reduced, and second, the engine cover had no heat rise that we could feel. A small area that I could not reach to install the new material had a noticeable heat rise. When you install this stuff make sure the surface is clean and grease free, if you do this place it correctly the first time because it will not come off. As a side note, I covered the edges with metal tape to reduce wear on the foam. I purchased tape with the insulation, and it did not stick worth a hoot, but I used Home Depot heater duct tape and it worked great. This product is the real thing.

Great product - easy install - once in place it really sticks so I hope it holds up under the heat. Here's what worked for me - I cut out a paper template for each section (My under hood has 3 sections - V12 Jag XJS) then transferred to the Pad and cut out the pad. Then I removed about a 2" strip of the paper backing covering the sticky side down the center. Once I got the pad in positioned I stuck it in place using only the 2" center part. - then I could re-position it as needed to fit the top and sides, reached underneath and pulled the sticky paper cover off from the center toward the edges and smoothed it out as I went. Before that I took the cut out pads to my upholsterer and had him sew an edging on each pad in a color that matches my car. Needed two orders for the whole hood - but I probably would need only one for my other cars. Good Luck

Does the job but small amount for very expensive price. Pictures shows the small quantity supplied. And the small engine cowling of my inboard jet boat. Not enough to do entire small engine cover I was forced to buy a second roll to complete the project. Expensive but works perfectly and has substantially made the motor noise quieter so 4 stars for me. If they supplied larger quantity or was less expensive I would have easily gave 5 stars.

We couldn’t find a cover that fit exact to our pickup so we ordered this — not realizing it was stick on. Decided to keep it because it was nearly exactly the size we needed. Cleaned the underside of hood, made holes in the mat to match our hood, removed backing and stuck it on plus used hood insulation retainers. Yikes. It does stick well. We cut the corners of the mat and one side to fit after sticking it on. Perfect.

Installed in my air exchanger. Replaced old fiberglass with this. Much better.

The Design Engineering under hood insulation mat is easy to cut, fit & install. Make paper patterns first as the mat will stick to everything trying to fit it if you don't have it cut to fit first. My hood had cross members that I had to go under with the mat so it was a little more difficult to install. But it turned out real nice. I got the silver colored mat, didn't know there was a black mat that I could have got at the time. Silver should reflect the engine heat better than the black would. I would recommend this product to anyone thinking about replacing the hood insulation on their car.

Ordered this to finish a job lining a boat I/O engine compartment with FatMat as FatMat was out of stock. Received with approximately 5-6 inches of the backing paper torn off two corners exposing the adhesive. Adhesive was not as good as FatMat. Material is not as flexible as FatMat. Product was acceptable but overall preferred the FatMat product.

Perfectly worked took off turbo sound

Needed to insulate the engine compartment of my boat. Great adhesion and formed well to the shape. Reduced the noise to a more acceptable level.

Used for quite truck engine, very easy to apply and did it the job.

well made and strong foil backing

Adhesive isn’t great on this. But the foam and the aluminum film seems to be good quality

Insonorisation, étanchéité de l'enceinte moteur d'un motorisé. classa A «diesel pusher».