Youse guys are missing the boat on the cleanup solvent to use. Both the gorilla and probond polyurethane glues are NON polar meaning in common everyday ordinary language that a polar solvent like acetone will not work as a solvent. The only thing that I have found that really works as a solvent on probond polyurethane is common grocery store "Goo Gone". It is a yellow liquid that contains a number of solvents and even smells okay too. Try some - youl'll see what I'm talking about.

Bobby