XHF 1 Inch (25mm) 3:1 Waterproof Heat Shrink Tubing Marine Grade Wire Cable Adhesive Lined Tube Insulation Seal Against Moisture Corrosion and Air Leakage, 4 Ft Black

Bought this to reinforce my charging cables for phones. Works great with both usb c and lightning. The 3x shrinkage combined with the adhesive strengthens the end of the cable at connector ends - a common failure point for these cables. If you have kids, you'll know they how they treat the cables, and this is a great solution for constantly failing cables. I put these heat shrink on the connector ends of every new cable I buy and they last a lot longer than usual.

I’ve used many brands of heat shrink with my electrical hobbies and this is by far some of the best stuff I’ve used. I’ve used plenty of “high end” shrink tubing in my day.By far the best. Tough as nails. Nice and thick and strong. I’ve mainly been using for 2 AWG wire and it’s great. I used a temperature controlled heat shrink gun that has various sized nozzles for precision work. For me I have found 650F to be the sweet spot for working with this stuff. Shrinks slowly but not too slow at this temp. You can see the tubing start to get of a glossy sheen when it’s done (others do this too). You get a good amount of glue for a waterproof seal though I would never use this is a submerged environment personally.I sometimes double up and use two cuts for an even tougher protection. However this does make it much thicker if space is an issue. Honestly it’s overkill but I sometimes do it.Buy with confidence this stuff is awesome.

Don’t go smaller than 4awg wire. This stuff is great, been using it for years. Works well outdoors, holds its seal. I have some on some security cameras out doors in the elements for the past 8 years and it’s still holding up. Matter of fact this heat shrink has outlasted the cameras.

I really want to give this 5 stars because it is great tubing, but knocking one off because the 2" clear does not have any glue as stated. As it turns out, this was better for my application and the clear is a bit more cushy/flexible than the color are, so all is well. The only clear I've ever used was very small diameter and it was known glueless tubing...maybe it's normal with clear and the XHF normal colored tubing has glue like usual. But this is good stuff. Longitudinal shrink is almost zero, which is great.It does do a full 3:1 shrink but you'll need a heat gun, not just a hair dryer (or god forbid, a lighter) - you can do those methods with smaller 2:1 tubing but if you want the full shrink on 3:1 and in medium to larger sizes, you need better heat application.In the photo is some 1.5" black 3:1 from TEMCo and this 2" clear from XHF. Fully shrunk it's around 11/16" diameter with a good thick wall (almost like PEX pipe but softer...stiffer than PVC/vinyl tubing). It's noticeably softer than any black/red tubing I've used but it's till rigid enough to support and protect - grabs more dust than the colors and may be more prone to abrasion but this is still soft shrink tubing, not a jacket.I guess heed the glue warning if that's important to you, but otherwise highly recommended and I'll buy some other sizes from XHF in the future. Some of the 3:1 tubing out there isn't very good or just so-so, but this brand and the TEMCo are both excellent.

Great stuff! I ordered the 2.5" diameter and it's to spec. Don't listen to the reviews about bad measurements from the factory, especially the ones with pictures that prove they don't know simple geometry... The diameter of this heat shrink is 2.5" - DIAMETER - Meaning the distance across a circle, crossing the center. Diameter does NOT mean you can squish the heat shrink flat and expect it to still be 2.5"... Obviously, if you do that, you're going to get more than 2.5".Great quality just requires a lot of heat and time! I set my heat gun to 800 F and didn't have any issues. Just heat it evenly and take your time. It's easy to cut and trim, the adhesive is great, I have no complaints! I used some of it to make a shield for the lower portion of my TW200's kickstand.