There are a lot of new caulks and adhesives available in tubes these days. I’ve found uses for many of them, but I rarely finish a tube on one job. In fact, many tasks need only a little squirt of some high-priced goo. Left-over tubes might just as well be tossed into the trash on the spot because the material in the tip becomes hard and unusable, rendering the rest of the contents inaccessible. A versatile and effective cap would solve the problem — and I had some in my tool box all along.
The solution is wire nuts. I use vinyl-coated red ones, which are normally used on 12-ga. wire, to cap my unspent tubes. I’ve found them effective for up to six months, and they can be constantly reused and easily replaced.
Joe Shepherd, Milwaukie, OR