The 18661 is a thermal transfer printable label made from B-473 glossy white polyester stock. It features a static dissipative permanent acrylic adhesive with a surface resistivity of 4.1 x 10^8 ohm/sq, making it suitable for ESD-sensitive applications. The label has a total thickness of 0.0034 inches and is rated for a long-term service temperature range of -40°C to 120°C. This label stock is UL Recognized and CSA Accepted when printed with the recommended Brady Series R6000 Halogen Free ribbon. Common applications include post-process labeling for printed circuit boards and electronic components where durability and resistance to chemicals and harsh environments are required.