Gorilla glue is a versatile, interior/exterior adhesive, ideal for most fixes and building projects. Use it to bond wood, stone, metal, ceramic, brick, foam board, fiberglass and much more. 100% waterproof, pure polyurethane glue. No additives or solvents giving it a much stronger bond. Leaves an invisible line that can be painted or stained. Non-toxic and acid free. Manufacturer recommends no skin or clothing contact. If material does contact your skin, it may take 3 to 5 days for it to wear off. Solvents are not recommended as they may irritate the skin.