this post was submitted on 01 Feb 2025
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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?

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[–] Shadow@lemmy.ca 4 points 3 weeks ago (2 children)

It should be fine if it was completely sealed and not exposed to light. Worse case I would just expect it to have hardened.

[–] A_Random_Idiot@lemmy.world 3 points 3 weeks ago (1 children)

It sloshes around real nice when shaken.

[–] roofuskit@lemmy.world 1 points 3 weeks ago

Make sure you shake it insanely well before opening.

[–] EmilieEvans@lemmy.ml 2 points 3 weeks ago

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.