Condé LaserMPrints™ OPAQUE for Polyester Heat Transfer Paper, Pack -50 sheets. LaserMPrints OPAQUE for Polyester Heat Transfer Paper is a single-sheet opaque material designed for both oil and oil-less color laser copiers and color laser printers for the transfer of high-resolution photographs and full-bleed images to dark polyester and synthetic garments with “low melt temperature”. DO NOT use with lycra or spandex material. The low application temperature (255-F / 125-C) and dye-block technology helps prevent “dye migration” from polyester dyes under the heat of your commercial heat press. Condé recommends testing for dye migration by applying a blank piece to material and heating for recommended temperature. If test material discolors, then use a different fabric material. LaserMPrints OPAQUE for Polyester can be used with a plot or vinyl cutter to remove excess film. Use a “low tack” application film to remove cut pieces from the backing sheet. LaserMPrints OPAQUE for Polyester should be applied with a commercial heat press. Must use with Silicone protective sheets when applying material to fabric. Silicone Matte Finishing Sheets included. Gloss Finishing Sheets (GFP-1116XXV), sold separately. Allow 24 hours for design to “cure” on fabric material before washing and drying.