I have some Urac 185 that I've had for atleast 2 years sitting in the garage so it's been very cold and pretty hot. It says one the label to keep in a cool place. Is it now ruined?

I would guess yes.

It's not that expensive, so if I had a doubt, I'd buy new rather than risk good bow materials on bad glue.

More than likely. Open the can and see how it smells, Urac gets a very bad smell when it's gone over. When in doubt, just order some more. I write the date I received it on the lid and store mine in the back of the fridge. This way, I can usually get 2 years out of a can, but if it's been exposed to warm temps, then replace it.

We don't have it go bad but also we go through about 1 gal / month.  Had a guy give me a quart one time that was gone to the dark side. It gets thick and nasty smelling when it's bad.

Mike

Thanks for answering my question guys. I'll get new.

You can save the powder. It shouldn't go bad. I was told all it is is finely ground black walnut and pecan hulls. Pat

I was thinking I would save the powder. Didn't see why not. Black walnut and pecan hulls huh? Thanks for the info.