The Zebra 5319 Performance Wax is a best in class, performance wax ribbon formulated for high quality printing on both Zebra coated and uncoated paper facestocks. Offers unmatched printing for both visible light and infrared scannability. Recommended for use on tough to print uncoated and uneven tag stocks, including Tyvek. Prints at speeds up to 8 ips. UL recognized and CSA component acceptable when used with Zebra approved labels.