General > General Technical Chat

Super Glue mini-bottle that doesn't harden by itself while stored capped?

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Someone:

--- Quote from: RoGeorge on April 20, 2023, 12:39:14 pm ---When stored for long (after opening the mini-bottle), even when properly capped, and put back in its original blister + an extra plastic bag, it still dries out by itself after a few months.
--- End quote ---
Use a more airtight storage such as a jar or rubbery "tupperware", and as above you can use a low humidity location such as a fridge or freezer. Lots of people here saying years... I have some 14 year old Loctite cyanoacrylate that has become ever more viscous but is still usable.

Muttley Snickers:
From my experience the dollar store stuff is a lucky dip, more often than not it is utter garbage and a complete waste of time and money. It can harden even when not opened and I've seen other shifty store stuff never cure at all. ie: water.

One of the best super glues I have purchased to date has been the Workzone stuff from Aldi, you get two 7 gram tubes for a few bucks and it sticks like mud to a politician. I put all my glues and epoxies in zip-lock bags and keep them in air tight containers.

jpanhalt:
Polymerization of commercial super glue is base catalyzed.  Water can act as a base.  Keep it dry.  Dry air is not an issue.  Cold also reduces reaction rate -- very roughly halving (or more) for each 10°C lower.  NB: Note that Loctite thread lockers are are so resistant to air, they cure only when air is removed.

My climate is relatively dry.  I have stored them in sealed, small canning jars in the freezer for periods over a year.  Be sure to let them thoroughly get to room temperature before opening the jars. Drierite and other water absorbers can help, but I don't use them.  If you have a tank of dry argon (which I also use to preserve opened wine), flushing the jar will help.

Water thin versions may get a little thicker, but still work as adhesives.  If you need them to be really thin, fresh is best.

themadhippy:

--- Quote --- sticks like mud to a politician.
--- End quote ---
not very well?

Muttley Snickers:

--- Quote from: themadhippy on April 21, 2023, 12:39:29 am ---
--- Quote --- sticks like mud to a politician.
--- End quote ---
not very well?

--- End quote ---
No, once stuck it cannot be undone or removed.   ;D

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