A job I'm finishing up has a couple of boards with the same spots on them. The product called for ureathane adhesive. (boy, is that a bad idea) and althought I used such a minute amount, its feasible some could have oozed out and got trackrd on the boards. They are in the exact same spot, on four boards, so I kind of doubt it. To be sure, is there anything, like bosticks glue remover, that can get a 5-7 day old film off the boards? Any ideas or suggestions would be helpful. Thanks.

Not without taking the finish off, too.

Razor blade, and a steel wool gently.