Romeda Aluminum Foil Tape, 3 inch x 65 Feet (3.9 mil), Insulation Adhesive Metal High Temperature Heavy Duty HVAC Tape, Silver for Ductwork, Dryer Vent, HVAC

Our AC unit was not running properly and wasting energy in the attic. I watched a few videos and saw you can get a type of tape to fill gaps in the duct work. I used this to go around the ducts and other A/C system components. It went on very easy, stayed on and held well, and has helped make our A/C unit run more efficiently. I think I have saved a lot of money and would purchase this again if the need arises.

-Edit- It's been 5 months and the tape is still going strong on my liquid cooling CPU cooler. For maybe 3 months I had been mining Bitcoin with this PC so it's had prolonged elevated temps and the tape glue seems to be holding wonderfully. I would recommend this tape to anyone.This is NOT that bogus "Aluminized Mylar" (thermal blanket) tape where they take plastic and spray like a single micron worth of Aluminum over it, call it "Aluminum Tape", and it's barely sticky. This is thick-ish Aluminum foil with seemingly good quality glue, or whatever you call it. I folded it in half and was trying to feed it through a small slit between computer case and liquid cooling fan (wanted to close the venting around the fan to keep airflow moving from intake to exhaust) and it kept getting stuck to the fan where I had to pull a bit to get it off and then re-fidget the tape so it was straight and then try again, so this stuff is fairly sticky. I used a smaller piece on the corner and it wasn't sticking the best, but after cutting a bigger chunk and touching up the corner that stuff seems ON THERE, I disagree with reviews that say this stuff doesn't stick to itself, seems pretty good to me. The liquid cooling fan/coil gets pretty warm (not heating duct hot, but still fairly warm to point it might dry out the glue or something) so I will try to update as the tape ages to see if it keeps its strength and stays on there (if this listing is still around/active by then >_>).I recommend this tape to a friend having used it just the one time, and now I've got lots for later jobs down the road and it wasn't much more expensive than the tiny 5 yard rolls or whatever.

Tape was a good value and works great for what I needed. Durable and good adhesion.

I purchased this to adhere selective insolation in a feral cat house for warmth with a heated floor. It was very easy to use. I did experience a bit of twisting so I put 4 versus 5. So far it is sticking. The reflective tape will not deter the heat reflection for the cat.I didn't realize the tape came with paper on the sticky side yo ge torn off. This worked great. The tape is thin not like regular duct tape which maybe why it sticks together if I was not careful. I am very happy and recommend this tape. The price was well worth it.

LOVE this tape for my craft projects. Its sticks very well and the lining paper behind it comes off easily. Will definitely keep on my must have crafting supply list.

Worth the price and working as expected.

Works exactly as described. Easy to apply. Would definitely buy again and recommend you purchase it. Won’t he disappointed

Great product.