The product is both a lubricant and anti-corrosive, which was initially invented to help prevent corrosion while removing surface rust. WD-40 gets its namesake from inventor Iver Norman Lawson ...

However, rollers and tracks that are in need of rust removal and lubrication are a run-of-the-mill issue that you may be able to fix yourself. WD-40 contains solvents and anti-corrosion compounds ...