Adhesive is a substance that bonds surfaces together. Adhesives include such materials as cement, epoxy, paste, polyurethane, white glue, and cyanoacrylate (super glue). Adhesives are used in homes, offices, and schools. They also play an important role in the manufacture of many products, including aircraft, automobiles, books, furniture, and toys. In addition, they are used in the construction of buildings and roads. Many people use adhesives to make simple household repairs.