The coating of CrystalClear™ has been uniquely designed for optimal printing results with white inks on the SP WT7900, along with UltraChrome HDR inks C, LC, M, LM, Y, Or, Gr, K. In applications such as concept proofing for adhesive layouts in the packaging industry, this technology allows you to print design concepts for the packaging industry at a fraction of the cost of previous proofing methods. Whether you choose the high-quality print mode (white first, then all colors) or the reverse print mode (white last, from the unprinted side), this 114 µ thick polyester film offers the highest precision. The product is available in rolls of 17 inches (432 mm) and 24 inches (610 mm) with a length of 100 feet (30.5 m). It is supported by a 30 µ thick release liner to ensure proper feeding of the paper into the printer. Like all innovative media from Epson, this paper is made to provide you with the highest possible resolution and color saturation. This substrate is supported by renowned proofing software developers. As always, Epson guarantees the quality of Epson supplies.