When I built my work bench, I used my table saw to glue some peices together (like an idiot) and I got some glue hardened on the table.
http://www.elmers.com/product/detail/E730 is the glue.
It's a cast aluminum top, I cleaned the table with mineral spirits, I'm not sure if there is a special remover I should use I tried googling it but I didn't have much luck.
-jeremy