In a pinch, you can use liquid electrical tape on top of and/or under some non-adhesive heat shrink. It's not as durable and sometimes will peel with lots of movement, but it's definitely better than plain heat shrink by itself.You want adhesive lined heat shrink connectors for this purpose. What you have pictured will corrode in short order, as the inner wire is exposed. The corrosion will start at the exposed wire core and run back inside the insulation. Simply putting a piece of heat shrink tubing over a crimped connection is not giving you a good/durable connection.
3M product---2 types w/ and w/o adhesive both are heat shrink----w/o is basically waterproof...mo' better and damn sure mo' expensive...on lineWouldn’t heat shrink on the ring terminal be groovy since you would cover the ring in corrosion block?
Maybe it’s because I’m poor, but I haven’t seen any heat shrink connectors with adhesive on the inside. Where can I find them?