Gorilla tape takes duct tape to another level, while Gorilla adhesives are known for their incredible holding power. The brand started with Original Gorilla Glue, which has a water activated polyurethane formula that expands into materials to form an incredibly strong bond to almost anything. Gorilla Glue is totally waterproof and you can use it safely indoors or outdoors. Strong enough to stand up to the elements, Gorilla Glue is the ideal solution for almost any project or repair. Strong and tough, Gorilla Tape is made with double thick adhesive, reinforced backing and an all-weather shell. It sticks to rough and uneven surfaces, including wood, brick and stone.