Original Gorilla Glue is a type of polyurethane foam -- polyurethane is plastic known for its durability and resistance to solvents. In fact, short of an acid that would make a hole in your countertop, you won't find a solvent to dissolve it, and it's better for your countertop if you don't try. It's a different story if the glue is Gorilla Super Glue. That's cyanoacrylate, and you can remove it with acetone. As with original Gorilla Glue, Gorilla Epoxy is insoluble and must be removed by mechanical means.
Removing Gorilla Glue and Gorilla Epoxy
Tap or scrape off large deposits with a plastic putty knife and a hammer. Wedge the knife blade between the base of the glue deposit and the counter and tap the knife handle sharply with a hammer. This method doesn't always work, but it won't damage your countertop, either.
Tap with a chisel if you don't have any luck using a plastic putty knife. Keep the angle of the chisel handle low with respect to the countertop to prevent the blade from digging in.
Scrape off flat glue deposits with a pull scraper. Run the scraper lightly over the surface of the glue and remove a small amount with each pass. Don't allow the scraper to come in contact with the countertop.
Sand off smaller deposits using 150-grit or finer sandpaper. Fold the sandpaper into a small piece so you can avoid contact with the countertop.
Removing Super Gorilla Glue
Soak the glue deposit with soapy water. Let the water sit for five minutes or more, then try rubbing the glue off with a rag or paper towel.
Dab the glue with acetone, using a cotton swab. Although acetone won't damage most countertop finishes, it's best to confine it to the glue as much as possible.
Wait for five or 10 minutes, then rub off the glue, using a rag or paper towel.