Someone asked about coping with the lids of acrylic jars that stick. It’s not surprising that they do that since the basic stuff does promise to stick anything… read about it on any jar of acrylic gel medium!
My solution is cling wrap (Saran wrap in the US?) – just a small length folded in half so it’s a couple of layers – put it over the jar then screw the lid on. Works a treat, lasts a long time.