DTL Plus/DTT, a direct thermal label, features a top-coated white matte finish, needing a visible light scanner for bar codes. It resists contact with alcohol, blood, grease, and water. DTL-SYN, a synthetic label, also has a top-coated white matte finish, providing all-temperature permanent acrylic adhesive with quick repositioning. Avoid use with sunlight, fluorescent lamps, or heat.