Use MEK Methyl Ethyl Ketone
I don't think the idea of a fast acrylic thinner is going to do the trick. Those are NOT typically used with epoxies. Many epoxies primariliy consist of Xylene and Isobutyl alcohol. MEK is probably the strongest solvent you can buy locally to remove anything.
This post was edited on 10/5 at 11:15 am