@d0e09e5d  Can you dissolve it with some organic solvent? 

I was working on some dirty equipment the other day, it had cooking smoke grease on it. The grease would not wash off, so I coated my hands with some cooking oil to dissolve the grease, and then washed that off with detergent. 

 @7f517f5f acetone will dissolve it just fine. Even gasoline in a pinch. But on a fabric it's just spreading the resin around, unless you're willing to waste a bucket of the stuff, so.... cheaper to just get a new t-shirt on Amazon 😂