Disposal of old resin bottles

What is the recommended process for disposing of old resin bottles. My thought is that since the opening is so small it isn’t reasonable to assume that setting the bottle out in the sun will cure the resin left over inside. I suppose it could be washed out with IPA, then tossed in the trash?

Good post! I’d also like to know what the correct environmental friendly procedure is for disposing of resin, IPA etc.

I only got rid of one bottle so far because I use them for holding experimental resin mixes :wink:

But what I did is to put a UV Flashlight at the bottle opening and shined the light inside until the resin residue was cured all the way. Then it was safe to dispose of.