Rated 40% stronger than other standard glue sticks, this versatile product enables strong bonds on a variety of materials including glass, wood, cardboard, metal, leather and optical fiber. Works in standard high-temperature glue guns that can use sticks of 7/16", 1/2" and 0.43-0.45". Recommended for use with Surebonder Full Size High Temperature Glue Guns. Choose this highly rated, easy-to-use glue with a higher-temperature gun when your project or repair calls for an extra-strong bond.