wrote:
I may be the one misunderstanding the OP's request, but I thought he
was asking about 2 part epoxy - Paint - not laminating resin. If so
there isn't much that can be done about extending the shelf life once
the hardner has been opened. Maybe blow some argon from the TIG in
the can and do the same with a zip-lock bag around it for storage?

The last place to store it is in the fridge with food. (been there,
done that, and the fridge made the food taste strange for more than a
year) The stuff reacts with moisture and the innards of a fridge is a
very moist place.
================
Leon McAtee


I've stored stuff in a fridge that has a limited shelf life for quite a
long time after the life expired.
I'm not talking about messing up food, but keeping the stuff cold where
there is less of a chance of a reaction. if you have a shop fridge with
nothing to hurt, all the better.
I keep my stiff in zip lock bags in a fridge. There isn't much moisture
there due to the temperatures and the "stuff" has less chance to react
to moisture or oxygen because of the temperature.
This could be paint, bread or anything else.
It's basic physics.
As always there's the "it all depends" disclaimer. Nothing is 100%.