APR 6 (formerly APR5): A versatile thermal transfer ribbon formula for uncoated papers, coated papers and synthetics. Improved smudge resistance compared to the AWX 500+. Excellent print quality of all bar codes, very small text, large characters, and logos. Heat resistance up to 212F (100C). Available in black and 10 spot colors. The colored ribbons have a limited life if exposed to direct sunlight.