Glue Original Gorilla 2Oz Water activated, it expands into materials to form a strong bond to virtually anything. Waterproof. Expansion allows it to penetrate the glued surface for a superior bond. Can be sanded, painted, and stained. Clamps in 1-2 hours. 10-15 minutes open time. Dries in 80-percent in 1-2 hours. Dries to a light tan color. Full cure in 24 hours.