I have some Fireforge Games’ resin miniatures that are sticky, maybe not exactly sticky, more like little slimy but hard to describe. I routinely washed them with soap after unboxing but it didn’t help with the problem.
I do have an SLA printer and I don’t have the stickiness problem in general, I use 2 containers with IPA to filter the models through (one dirty, one clean).
Anyway, what should I do to fix the models’ tackiness? Can I safely prime them now or should I leave them for a day on the sun?