Heat Shrink Tubing Kit - 3:1 Ratio Adhesive Lined, Marine Grade Shrink Wrap - Automotive Industrial Heat-Shrink Tubing - Black, Red - 400 PCS

We installed some new equipment on our boat ourselves and wanted to be sure the wires were sealed well. We found this heat shrink and have used this tubing kit. It had the sizes we needed, shrunk up well, and seems to be working just fine. We are incredibly pleased with this product!

Heat shrink works as intended ;is water proof.

works as expected

Great feel to them, great shrinkage, good glue. I say "good on the glue because in one application of many, on a garden hose that burst it's inner sleeve, the glue has deteriorated under harsh sun, weather and lots of handling. That's probably still great then but it has deteriorated so 4 stars. On static wires, the glue has held. The variety is great too. These are amongst the best tubing I've ever used. One type more rubbery and flexible (again, the 4 stars on this one) but really no complaints with these.

Perfect length. Well made. Seal very well

Color me impressed. Shrinks well and seems thick enough to get the job done. I do believe the harbor freight brand is slightly thicker but I see no issues with these particularly at this price point.

The product was exactly as described and worked perfectly. It fit just as intended with no issues, and the quality matched expectations. Very satisfied with the purchase

The media could not be loaded. I never knew "marine" grade heat shrink tubing existed until a neighbor enlightened me. So, I searched Amazon and bought this kit for the "Pros" listed below, plus the good Amazon review score.My video shows the ease of use and my photo shows the cooled connection with a thin bead of hardened adhesive between the wire and the tubing. That's where the waterproofing comes from.Pros:Kit includes several tubing diameters that will work with the most common wire gauges.The quantity of each size is very generous - 360 pieces may last me the rest of my life!The 3-1/2" length of each piece is enough for most needs.The adhesive lining provides a secure and waterproof connection.The carrying/storage case is a big plus and makes it simple to find the optimal sized tubing.The 3:1 shrink ratio pretty much guarantees a good seal.Cons:None that I am aware of.In summary, I've had non-adhesive shrink tubing allow the wires to pull loose from the connection many times because the tubing didn't form a tight enough bond to the wire. The adhesive liner with this tubing solves that problem.I wish I had discovered this type of heat shrink tubing long ago!Even when a wiring connection does not need to be waterproof, the adhesive adds greatly to the strength of the joint. You can't go wrong with this kit.