Henkel 64604 Stik and Seal Outdoor Adhesive, 1-Ounce Bonds aluminum, brick, cardboard, ceramic, fabric, fiberglass, glass, leather, rubber, steel, wood and most plastics At least one surface should be porous Dries crystal clear to a semi-flexible bond This semi-flexible crystal-clear adhesive is designed to address the daily needs of the homeowner, both indoor and outdoor Recommended for bonding aluminum, brick, cardboard, ceramic, fabric, fiberglass, glass, leather, rubber, steel, wood and most plastics At least one surface should be porous Water resistant and crystal clear Not recommended for potable water systems