3M High Temperature Flue Tape, High Heat Sealing Tape up to 600 degrees, 1.5' in x 15" ft Roll, Stops leaks from hot air ducts, Made in the USA, Silver (2113NA)

I used this when the glass of my stove cracked. Worked well until I could get a new stove. The tape held fine and was easy to install. An old timer gave me the tip so I could still have use of my oven until I could buy the replacement.

Worked well! Used the Hi Temp Flue Tape to seal some leaks that opened up in the wood stove flue pipe. I was rather pleasantly surprised to see the tape sticking to the pipe quite well even after some time. Adhesive sticks nicely if the surfaces are clean, and the tape does conform pretty well to bumps and bends if you are careful. Was a real help keeping the stove sealed up.

I used this while changing my water heater vent pipes. Definitely good for sealing up mismatches in piping. Unfortunately I had to reuse a single walled elbow in between two double walled type b pipes. This worked well to keep them sealed and put.Where it didn't work so well is when I had gaps in between the pipe collar and my wall. There were two corners where the collar didn't quite cover up the hole for the piping to go through, so I opted to use this tape to keep the seal heat proof. It stuck well enough to the metal collar, but not on the wall, so I laid regular duct tape over this one to hold it in place.TLDR: Works well to tape metal together, but other materials like painted wood not so much. It's basically tin foil with adhesive.

This 3M High Heat Sealing Tape is fantastic! It withstands extreme temperatures up to 600°F and effectively stops leaks in hot air ducts. The strong adhesive holds well, and the 1.5" x 15' size is convenient. Made in the USA, it's durable and reliable. Perfect for HVAC repairs—highly recommend for anyone needing heat-resistant sealing!

This high-temperature tape is amazing! I used it on my heating system, and it holds up well under extreme heat. It’s easy to apply, and the seal is solid. No more issues with leaks, and the tape has stayed in place. A reliable, high-quality product for duct work.

Bought two rolls to seal joints in a B-vent. First roll seemed less sticky than second. Both definitely stick worse after you touch with your fingers which is probably why they say to apply from roll, but ...For such a short length of tape they still use a standard 4" cardboard roller. Makes it tough to fit the roll through small spaces, like between B-vent and intake line, or B-vent and appliance, you get the picture.Wound up cutting pieces, sticking as much of the middle as possible, then cutting off where I touched the adhesive. Wasteful, but works.Buying again since this is the highest temp rated tape I can find, but for the price v.s. length I'd like better.

Worked awesome on hunting cabin.

Bought this because I didn't want the super thin tape that would tear easily. Well, the thickness is good, but this stuff won't stick. Peels right off of most surfaces. Not to mention, there is only 15ft on a roll. Which might sound like a good amount, until you realize how quickly that much is used.