American Ultraviolet Co., Lebanon, IN, has announced the acquisition of Lesco Corp. of Torrance, CA. Other American Ultraviolet purchases over the past five years include UV Source, maker of the Green Spot, and Aetek UV Systems, developer of UV systems for the web industry. As a major industry player, American Ultraviolet continues to focus on further growth initiatives while providing leading-edge ultraviolet applications and responsible customer service to the healthcare, pharmaceutical, water purification, screen printing, bottling, food processing, and aerospace industries.