Ultra Aggressive Polyester (B-489A) with permanent adhesive is ideal for labeling products and general ID in both commercial and industrial applications. Best for application on smooth and highly textured indoor surfaces including metal and low surface energy plastics. Matte white polyester material has a permanent rubber based adhesive and is thermal transfer printable. UL approved;CSA accepted. Service temperature of -40 to 248° F (-40 to 120° C). Brady Authentic materials work seamlessly with Brady printers for improved printer and material communication, seamless mobile app interaction, and better performance and reliability. A ribbon is required to print this material. Use Part Number M61-R4310 for the M610 / BMP61 / BradyPrinter M611 / M611 Label Printers or M7-R4300 for the M710 / BMP71 Label Printers. This label is no longer compatible with TLS Series Printers.