Evaluated Alternative Non-fluorinated, PFC-free water repellent for all types of fabrics UNIDYNE XF Series is repellent finish for a wide array of textile substrates that is made from greater than 50% bio-based materials. As with Daikin’s long-standing fluorochemical repellents series, XF Series provides valuable-performance, washing machine durable water repellency without sacrificing fabric breathability and hand feel.