If it is wet use mineral spirits. If it's hard then use sandpaper
or solvent such as acetone,laquer thinner etc. I find it has it's place for filling in gaps and for gluing foamies back together and for attaching hinge points or nylon hinges it's great. I first coat the hinge joint in vasilene and then apply just a little water to the control surface holes and the trailing edge holes. Next take a tooth pick with a little glue, and I mean a little, and then rub it in the hole insert the hinges and line it up and let it set. In about 1/2 an hr check it again and work the hinges some, don't try to wipe off any glue that foams out yet, when it gets hard you will be able to take a #11 blade and pick the excess right off and your hinges will function just fine, and they will not pull loose, even in a crash. Don't ask
