1 Inch Dia 3:1 Waterproof Heat Shrink Tubing, 4ft, 2 Pcs, Black & Red | Marine Shrinkable Wrap, Insulation Sealing, Wear-Resistant, for Boat, Auto, Electrical Wiring, DIY

I recently used the 2 Pcs 1 inch (Diameter) 3:1 Waterproof Heat Shrink Tubing Kit for a few marine wiring projects, which exceeded my expectations. The dual-wall adhesive feature ensures a tight, waterproof seal, essential for the durability and safety of electrical connections in marine environments. The 3:1 shrink ratio is impressive. This allows the tubing to conform perfectly to the wires and connectors, providing a secure and professional-looking finish. The large diameter size is versatile and fits various applications, making it a handy addition to my toolkit. One thing I particularly appreciated was the quality of the material. The tubing is robust and resilient yet flexible enough to work with efficiently. It protects against abrasion and environmental stress, which is crucial for outdoor and marine use. Overall, the 2 Pcs 1 inch (Diameter) 3:1 Waterproof Heat Shrink Tubing Kit is a reliable and high-quality product that offers excellent value for money. It’s a must-have for anyone looking to ensure their electrical connections are protected and long-lasting.

I do like this shrink wrap. I use it mostly on #4, #2 & 2/0 wire in my solar system and batteries. I tested it on a piece of #4, which is 1/2" thick and it worked really well. (see video and images). I used a heat gun and it shrinks up real nice, doesn't burn or curl up. This is 3/4" diameter shrink wrap and I was really surprised that it shrank all the way down to 1/4". Highly recommended. JohnnyF

Works well, waterproof excellent quality

PRODUCT IS USED TO WRAP CYLINDERS THAT ARE TO BE PRESSURE TESTED FOR AIR LEAKS.

Good

I purchased this heat shrinking tubing because I wanted to repair the fiberglass handle on a shovel that was worn and shedding fiberglass into the skin in the palms of my hand. This tubing worked fantastically, not only fixed the problem but added years to the usage of my shovel.

This just added more life to my fiberglass shovel, rather than having to go out and buy a new shovel. I was able to wrap the fiberglass handle and get many more years out of my shovel. Very easy to use and take your time and use a heat gun.

I was just looking for a quick roll of red & black shrink tubing to finish off some power cables for my solar installations and snagged these without really looking. I was VERY pleasantly surprised when I put them to use and saw the clear substance like hot-glue-gun glue form a very thin ring at the ends of the connection's tubing. I looked at the inside of an unused section and realized that was effectively what it was! These seal really, really well, forming what I would expect to be a water-tight and very reliable finishing-touch to your custom cable making. Very happy I discovered this stuff, I didn't even know before this that such a hybrid shrink tubing existed. I will definitely be buying more of this stuff! I'd give it 6 stars if I could :)

Good heat shrink, works great. Really sticks!

I am really impressed with the quality of this thing! The addition of glue to seal the entire thing is genius. It shrinks evenly and also it has a good thickness! You won't be afraid to tear it apart like some other brands. Love it!

This did what was stated. It took a little bit more heat to get it to start shrinking. Be careful of what you are trying to cover with this shrink. Other than that it did the job for me just fine.

très bien

Great on patch cables that will last a lifetime.