Gorilla Glue is used to glue materials together that are typically difficult to bond. These materials include metal, wood, foam, stone and ceramic. Gorilla Glue is used because it is not affected by extreme hot or cold temperatures. Gorilla Glue is waterproof and does not break down when it becomes wet, which makes it difficult to remove from metal and other material after it dries.
Remove the glue as soon as possible. The longer you allow it to sit and dry, the more resilient and waterproof it becomes. This makes it more difficult to remove.
Flake off as much of the Gorilla Glue as possible with a pair of pliers and a chisel, being careful not to scratch the metal.
Sand the metal to remove the Gorilla Glue. Using a fine grade of sandpaper, rub the area that is covered with the Gorilla Glue until it thins and vanishes.
Use paint thinner or rubbing alcohol to remove the film left by the Gorilla Glue on the metal. Wear protective gloves and make sure the paint thinner does not harm the metal by testing it on an inconspicuous area.
Heat the metal. According to the manufacturer's website, Gorilla Glue begins to lose adhesion at about 215 degrees. If the metal is able to withstand the heat, use a torch to remove the Gorilla Glue.