Does unopened resin go bad?
I was cleaning out my project closet the other day and I found an entire bottle of resin for my printer, still sealed and unopened... but it is several years old at this point.
I didnt see an expiration date or anything on it, so I just wanted to ask before I open it and potentially make a huge mess... Does Resin Expire or otherwise go bad with time if its factory sealed? or in general?
It should be fine if it was completely sealed and not exposed to light. Worse case I would just expect it to have hardened.
It sloshes around real nice when shaken.
Make sure you shake it insanely well before opening.
The black plastic tubes don't block 100% UV so place it in a dark corner of a room.
Besides light, temperature can also cause degradation.
Oxygen might as well slowly oxidize the photosensitive catalyst.
Allegedly the UV reactive stuff can break down, so it may not cure properly.