Tamper-Evident Polyester (B-7546) leaves a "VOID" footprint when the label is removed and leaves a "VOID" pattern on the top surface of the label to prevent reuse. Gloss white polyester with tamper indicating acrylic is ideal for rating and serial plates that require high performance and evidence of label removal. Excellent chemical, oil and water resistance. UL Recognized;CSA Accepted. Service temperature of -4 to 212° F (-20 to 100° 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 / M611 Label Printers or M7-R6000 for the M710 / BMP71 Label Printers.