Marelube is a lubricant specially formulated using advanced lubrication technology made for use in Marine grade valves, seacocks and any other marine parts that need periodic lubrication. Made from long-lasting PTFE Teflon-based lubricants. Marelube is designed to keep marine valve seals and balls working smoothly. Marelube also works on winches, hinges, tracks and other boat parts that need to move smoothly. - Marelube is a clear, non-staining and non-toxic lube that works equally well if fresh as well as salt water. - Available in a 4 oz jar.