Sink Fast repels water and will actually improve sinking line performance. Designed specifically for sinking and saltwater lines, Sink Fast is a non-toxic, water-based product that cleans, lubricates and protects fly line from the sun’s damaging rays.
Features:
Sinking fly line cleaner
Spray cap for easy use
Water based

Directions for use:
Remove cap. Spray on Line Cleaning Tool. Apply to sinking fly line.