Heat Shrink Tape - 1" Inch Wide - 16.5 Ft Rolls - 4:1 Adhesive Lined Shrinkable Tape for Electrical Cables, Wires, Pipes – Adhesive Activates Upon Heating Melts and Seals, RoHS - Black

I had a leaking kitchen, 1-1/4" Cu drainpipe, located in a tight, wood floor joist area (picture). I am familiar with Heat Shrink materials, and I choose to use the 1" Heat Shrink tape for repairs. Several reviews I read were critical of this tape (flexibility and wrapping difficulty). What I found was the 1" tape, being about 1/32"+ thick, wrapped but not as tightly as I thought it should due to its thickness. Starting and ending the tape wrap seemed difficult (holding the tape in place during the wrap process) until I used electrical tape on the heat shrink tape ends to secure the tape. I started the wrap about 2" away from the critical area of the leak and ended the wrap about 1" from the critical area. The tape has about a 2 to 1 shrink ratio, so I did not have to have the tape tight, just snug and fairly flat to the work surface. On one side of the tape is a shiny glue compound (See Picture). It does not become sticky and gluey until heat is applied to the tape. On heating the tape via Heat Gun, the heat shrink tape shrunk tightly to the pipe and itself, and the glue on the tape became soft and squeezed out the edges of the tape sealing the tape to itself and the pipe. Be sure to heat from the center of the wrap to the ends of the wrap. The end product was a tight patch resolving my leaking pipe problem. I tried several other ways to solve the leak, and this one ended up being the most simple and effective method. I did not use a torch in fear of starting a fire in my walls. Hope this helps you!

I really wanted to like this product, but it is unusually unless you are working on VERY LARGE cables. If you're looking to fix anything smaller than say, the main electric line into your home, I would skip this one. Shrinkage is mid tier, but the adhesive ONLY activates with heat and it is SO THICK that it WILL NOT hold its shape in the way you set it. It constantly tries to unwind itself to the point that even once the adhesive melts enough to stick, unless a VERY BROAD area it heated and touching the surface beneath, both the shrinkage and stiffness of the tape will cause it to immediately unwind itself from the cable. If it had another adhesive that is NOT heat activated, it might work, but as it is, I wouldn't recommend it unless you're repairing very large cables and have a BIG heat gun to heat it very widely and evenly. If I hadn't already used a bunch of it trying to get it to work id probably ask for a refund

Works great where you cannot use tubing would buy again haven't been able to find in stores for years

Maybe I should have known better, but this is a very thick and stiff tape that will not wrap around the small wires of a vehicles engine comparment I was trying to seal - like battery cables and engine wiring with damaged insulation that a traditional heat shrink tube will not slide onto. I'm sure whoever knows what this is used for may think its great - I assume for large wires or high voltage installations.

Very difficult to use unless its a very long area to protect. The stuff has no adhesive to hold in place so have to hold wrap in place with pliers to shrink it. it's also very thick so my cordless heat gun is useless with this stuff and I have to use a propane torch. I wanted this stuff to work so bad but it's too big of a pain to use. Useless for small area repairs.

I just recently discovered this product. I was familiar with shrink tubing but what if you can't slide it over an end or what if you have a cable to cover or a 3 way connection? This product is perfect for those types of applications.

Works as I hoped.

I very much wanted this to work, since there are often cases where shrink tubing is not an option, either because of size issues or because you're getting to the problem too late and can no longer get tubing over the affected area. However, I couldn't get it to do anything useful. The tape is very thick and stiff, and coming off the roll has no adhesive qualities whatsoever, so it's pretty impossible to get a good initial wrap. I thought it might be possible to heat a length of tape first, and then apply it around the joint, but this was not really practical. Overall, you're a much better off using either traditional electrical tape (though you would have to wrap several layers to get an equivalent thickness of insulation as this tape), or else try to arrange things so you can use normal shrink tubing in your application. Hope to see a better product in the future!

Used this on a leaking pool pump and it worked great.

Good product good pricing. Thumbs up!

Didn't adhere

This product seems to have a good heat activated adhesive lined shrink wrapping. It is thicker then I had expected which is great surprise on a durability view. It's a great product only thing for first time buyers It's a bit tricky to work with if you're not doing a larger area. But it works great after you find the trick to hold it in position and Heating it without over heating or burning yourself I believe it will last and protect the area for a very long time. I will be purchasing more in the future.

A very useful product for protecting and sealing a wire harness that cannot be opened Used for many years in automotive’s Only Amazon carried