Posted by SillyOldDuffer on 03/02/2021 10:45:33:
By far the biggest problem with superglue in my workshop is old product. I mostly use a few drops at a time, maybe once a fortnight, and super-glue goes off, small quantities rather quickly. Joints made with old glue are weaker, then the glues gums up completely. In my workshop cheap unopened Poundshop capsules are better value than a small bottle of expensively but slowly used Loctite. Bigger containers last longer, but if strength matters don't use old glue even if it has a reliable brand-name and cost la small fortune.
I have the same problem, and recently threw out most of a 100g bottle that was supposed to be more economical than buying little ones. It isn't economical to throw away 3/4 of what you buy!
I find the same with cartridges; I rarely use the whole tube, and it's bloody expensive to find the £10 tube of Sikaflex you started 6 months ago has gone off. Delays the job while you get some more, and that's unacceptable. I now buy the cheaper alternatives, and the paint supplier I use often has past its use by date ones for a fraction of the normal price. I buy those and bin the open tube when I've finished the job so I don't waste resources hoarding useless crap.
Most All of my use is non-critical so real savings are made by not buying brands: the thread lock I bought from a fastener supplier several years ago was £3, although they also had genuine Loctite for a lot more. I used to use high quality branded superglue and activator, which I got from work; we were buying 400 bottles at a time. I haven't noticed a difference in performance.