Scientific Anglers Fly Line Dressing With Pad This is the best way to clean most fly lines. The co-polymer finishes on new fly Lines can be damaged by solvents and many cleaners. Using these pads is recommended prior to application of any dressing. 3M Micro-polishing technology removes dirt buildup and line contaminants for a cleaner, smoother surface. Patented 3M micropolishing technology removes dirt and line contaminants to restore near original performance. Contains advanced lubricantsEasy to apply streamsideUse line immediately after applicationImproves floatability for easier pickup and mending