Painters prepare interior and exterior surfaces of buildings and other structures and then apply paint with rollers, brushes, sprayers. They work with varnishes, lacquers, enamels, and other coating materials. A painter must be able to mix paint as well as operate sand and water blasting machines. This trade also includes drywall taping, wall covering, and special decorative finishes. A painter must have good manual dexterity, neat work habits, and not be afraid or working at heights. They must be able to read blueprints, finish schedules, and do some math.