I install a hardwwod floor 5/16 inch thick and glued it to concrete with a urethene glue. Some of the glue got onto the flooring's surface and dried. How do I get the dried glue off?
Bruce flooring...... brazilean hickory glue bostik's

Man, it can be tough!!! Sometimes if left on too long, it etches the finish.

Mineral spirits on a rag. Sometimes a dry finger, used as an eraser, will ball it up. You have to rug hard with a lot of pressure.

Some have been having excellent results with "Magic Eraser" I have not tried it yet, as I clean as I go, and again the following morning, so I can see in a different light glare.