Standard heat shrink tubing is pretty handy stuff, and the addition of an adhesive lining can make it even more so. Typically made from cross-linked polyolefin, which is stronger than PVC and does not burn like PVC, this tubing, with its heat-activated adhesive, provides a tight seal against water, oils, acids, and sunlight. The tubing’s major markets are marine, RVs, and campers, but I like it as a general-purpose heat shrink because of the better seal.
The main suppliers are Ancor, 3M™, and Raychem (Tyco).
Depending on diameter, length, and number of pieces, packages of adhesive-lined heat shrink tubing cost $2 to $39. Kits with a variety of sizes and colors are , also.
I suppose you could approximate the results using standard heat shrink with a subsequent coating from a hot-glue gun, but using the adhesive-lined tubing is much quicker and likely results in a better seal. What do you Toolmongers think?
Adhesive Lined Heat Shrink Tubing [Manufacturer’s Site – Ancor]
3M™ Dual Wall Tubing [Manufacturer’s Site – 3M™]
Raychem Heat Shrink Tubing [Manufacturer’s Site – Tyco]
Ancor Marine Grade Electrical Adhesive Lined Heat Shrink Tubing Via Amazon [What’s This?]
Ancor Street Pricing [Google products]