I painted some coins with acrylic, but they麓re all sticky even after dry...?

For a project i'm working on, i've painted some coins with acrylics... first i used a regular oil paint (the kind of paint you use on metallic windows bars) and then painted with the acrylics on top of it. The colors look great, the problem is they tend to stick together and i need to avoid that, since they're gonna be stored together in bulk.





How can i solve this?I painted some coins with acrylic, but they麓re all sticky even after dry...?
Have you tried varnishing them?


Regular nail varnish may be worth a try.I painted some coins with acrylic, but they麓re all sticky even after dry...?
They aren't dry. When dry, acrylic paint is not sticky.





Oil paint takes a very long time to dry --- a very, very long time!! Why did you put oil on first??





Let them dry first... a couple years maybe -- before touching them.