Located in Tucson, Ariz., Sigma Technologies Int'l Inc. is a provider of roll to roll and batch surface functionalization solutions. Its components and systems include atmospheric plasma treaters and etchers, atmospheric CVD systems, linear electron beam curtains, CVD evaporators, etc. The company s specialty materials consist of metallized and polymer coated films, special effect pigments, high barrier films, and others. Sigma Technologies Int'l Inc. uses coating technologies, such as vacuum deposited polymer coatings, sputtered coatings, thermal evaporated metals and cathodic arc.