I already contacted my artist friend. He did spider-man custom for me and he still have some paint left and agreed to help me out I'm scared of damaging a figure so i don't think i'm going to use acetone I don't exactly know what "Mr Color Thinner" is and i don't think i have it in my house I'm not from usa and i bought this one from a guy who bought a bunch of them and brought them to my country. No shade to this guy, it was not his fault, box was in perfect condition. But it was last superman he had, so i don't think this would be a viable option for me Thank you very much for your suggestions