Protek CLP (Cleaner, Lubricant, Protectant) is made from space-age polymers. Protek removes verdigris and protects against future build-up by coating the center pin and sealing the felt from moisture thus preventing oxidation. Unlike silicone, Protek will not run, dry out or become ineffective. Since Protek will not harm wood, metal or the piano finish, it is excellent for damper guide rail bushings, underlever lubrication, front and balance rail pins, capstan screws and squeaky knuckles. A hypo oiler is the easiest way to apply this lubricant.