I noticed that my wood glue bottles have a big warning on them that says 'Do not freeze.' Unfortunately, I left them in the garage during a super cold winter. I'm curious about what happens to the glue when it freezes and if it's still usable afterwards.
4 Answers
From my experience, frozen glue gets lumpy and bad. I once saved a gallon jug by straining it and mixing it with a paint mixer drill attachment, and it still worked pretty well afterwards.
Titebond glue mentioned that freezing might not ruin its function but could thicken it. You should try agitating it to see if it goes back to normal.
When wood glue freezes, it usually separates and can become unusable. I've tried mixing it back together before, but it's often not worth the risk of ruining a project. You're probably better off just buying a new bottle.
I managed to use some that had separated by applying it thickly with a putty knife. It still stuck well!
Honestly, I just toss it if it freezes. That's why I stopped buying in bulk and only get what I need for specific projects.
Same here, definitely throwing it away.

Yeah, glue isn't too expensive, so it's a safer bet.