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.