Thermo-Tec 13575 Adhesive Backed Aluminized Heat Barrier, 12" x 24"

This stuff is great.I just ordered one more package of it to (which will total four packages) complete the job of insulating my fuel tank against heat here in the Arizona desert. So far it has really worked. On my 1985 Mazda RX7 GSL-SE, the factory somehow thought it smart to have the fuel tank under the car and right next to the exhaust!. Not so good. So, in very hot weather, the fuel would actually boil in the tank. I mean really boil. In 100 degree+ weather when I'd go to get gas, when I took off the fuel cap it would literally blow off and gush a gallon or so of fuel out at me and on the ground. You'd hear the remaining fuel bubbling and boiling to the point you couldn't put more fuel in until it settled down. Also, I would get stuck (vapor lock) on occasion. It's been over 100+ degrees every day since I covered the tank with this and, so far, no more boiling and bubbling. It works exactly as advertised. I'm ordering one more sheet as the three packages were not quite enough to completely cover the tank areas I needed to, but more for appearance than function since you can see the tank from behind the car.It just plain seems to work. Not cheap, but so far worth every penny. I haven't needed to cover the top of the tank, just the bottom and sides so, as in my case where the tank is out in the open, you should be able to do the job without dropping the tank off the car. IMPORTANT: Be sure you clean the surfaces where you're going to stick the adhesive backing of the material very well before sticking it on. Otherwise it won't attach well over grease/oil. Also, the adhesive backing is VERY sticky, so measure and plan out where you're going to attach it before you take off the clear plastic sheeting that covers the adhesive. Otherwise it may stick where you don't want it too.

We have a RZR and found that in the summer with the full windshield on, the heat inside was bad. We disassembled as much as we could and wrapped all the aluminum radiator tubes from radiator back to motor. We also applied this heat shield to the under side of most of the interior panels. We also reached up from the underside and applied heat shield to center condoles and wrapped cup holders. We took the RZR for a test ride and saw an immediate reduction in heat and it is much quieter. Engine temp was 184’, with heat gun, back radiator hose was about 140’, heat gun read 95’ on wrapped aluminum tubes inside RZR, when measured before panels were re-installed. We found the product to be very easy to work with. One reviewer said sticky side came off with the peal off backing, this never occurred. We found the easiest way to work with this was to cut about 5x8” strips, removed the backing and reapplied film backing, as most of the wrapping had to be done from under the RZR. Very easy to install, adhesive was very strong. The interior panels are made of plastic, the adhesive stuck to those as well without any problem. Another reviewer said hard to cut, another said wear gloves and eye protectors, we found none of these to be the case. This is a great product, and most of the “we” in applying this to our RZR was me, and I am a 66 yr old woman. So if I had no problem, the guys shouldn’t either.

Why only 4 stars? Product works well (as listed in "story" below), but the adhesive after 3 months isn't holding up so great. When I remove the battery cover I applied this too I often times have to re-stick the heat shield. Considering it's a smooth plastic and I bought the cover brand new so it had no time to be exposed to road dirt, and considering this item never gets wet or is exposed to anything but vehicle heat I'm removing a star. It's designed to block radiant heat, but what's the use if the adhesion can't handle the heat? Story: Used this on the battery shield for my wife's 2002 Saab 9-3. After 3 failed batteries in 1 1/2 year I realized that the battery was too close to the radiator hoses and it was making the battery almost 200 degrees. I bought the factory shield that covers the battery (a number of years ago a mechanic took it off and never replaced it), I had no idea how important it was to keep the battery from becoming super heated. As added insurance I covered the cover with this material. This sheet was the perfect size to cover every side (4 sides and top) of the square battery cover. Now the battery has an average temperature of 114 degrees after a 30 minute drive. I should note I live in Florida, bare pavement is 114 degrees most days, so I think that's about as cool as the battery can get unless I relocate it to the trunk.

The exhaust tunnel insulation on my Mazda3 had deteriorated and fallen on the catalytic convert, causing my car to fail inspection. New molded OEM replacement would have cost $180. I bought this with low expectations but to my surprise it got me thru re-inspection, seemed to perform well over its first summer, AND - best of all - I recently checked and 10 months later it is still adhered to the tunnel over the pipe, showing that it can take some heat too. Easy installation, easy to cut with scissors, and I used a small plastic roller wheel to maximize contact with the metal under it. Would definitely recommend.

I wrapped the outside of my cold air intake heat shield with this thing, as well as the throttle body silicone hose that runs next to the head, today @ 103 degrees my intake temps where 5 degrees cooler than usual. Sticks to everything and anything. Update: 6/25/17 I ordered more, I made a lexan scoop that routes air right into my intake system, it sits behind the grille. The scoop has the radiator right behind it and while the lexan supports the heat radiated by the radiator it was definitely getting pretty hot during the last few days that we have seen over 121 degrees here in Phoenix, I wrapped the back of my scoop with this, also wrapped other spots of my intake system. The results are amazing, if my outside ambient air temps are over 121 degrees, imagine the temperature inside the engine bay, well, after driving around in a very hot day my intake and the area where it sits is way cooler than the engine bay, by over 17 degrees. This stuff reflects heat really well. I like it.

Used this inside a set of fiberglass and carbon fiber fairings in spots where the engine and exhaust are close enough to cause hot spots and burning. Perfect. It cuts easy and forms to the complicated shapes on the panels nicely. It was said this wouldn't stick well to the rougher inner surface of fiberglass and carbon fiber. I took precautions in prep because of this by being sure all grease and oil was removed. I also used small roller to press the material in to the panel. It's been a few weeks now and there is no sign of lifting anywhere. It seems to adhered pretty well. I also sealed around the edges with the 2" cool foil tape, but I probably didn't need to. How does it work? It does what it's supposed to! There is a section of carbon fiber belly pan on my bike that runs very close to the exhaust and it was getting super hot. This stuff makes it so I can put my hand on it even after running in the garage to set up the fuel injection (no cooling air flow from riding). Prior to that, I was unable to touch it due to the heat. Recommended, just be sure to prep the surface well.

I used this as a shield on my fridge to protect it from heat from my gas stove. My fridge is located right next to the stoves largest gas burner. The fridge used to get so hot it felt warm on the inside! I read someone used magnets on the corners to hang the shield so it could be removed if needed. This works great! My fridge surface is only slightly warm now when I use that burner! The shield is draped by 3 strong magnets across the top. I only cut the rear paper enough to stick to the magnets. Since the shield is not directly mounted to the fridge, the air gap behind it helps keep heat way. I highly recommend mounting it like that. What an inexpensive solution to a major problem!

Used as heat shield in engine compartment, adhesive backing only lasted short time and it fell off. Used some high temp epoxy to glue it back in place and it stayed on going on 2 years now