MICROSLICK Fly Line Dressing cleans, lubricates and preserves fly line and rod guides. Over time, dirt and grime can build up and compromise the performance and flotation of any fly line. We recommend cleaning your line after 5 or 6 outings. If fishing in murky or muddy waters, then this should be done every 2 or 3 outings to ensure your line is conditioned and functioning properly. Simply apply a small amount of MICROSLICK Dressing to a soft cloth and swipe fly line and guides to ensure optimal performance. Repeat as necessary.