Permanent Polyester (B-423) is ideal for electronic PCB and component identification, bar code labels, rating plates and solar panel identification. Glossy white finish with permanent acrylic is thermal transfer printable. UL approved; CSA accepted. Meets requirements of a halogen-free material per DIN VDE 0472 part 815. Service temperature of -94 to 230° F (-70 to 110° 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-R6010 for the M610 / BMP61 / BradyPrinter M611 / M611 Label Printers or M7-R6000 for the M710 / BMP71 Label Printers. This label is no longer compatible with TLS Series Printers.