LIQUI MOLY's LM 40 Multi-Purpose Spray is meant for hobby, workshop, vehicle, and industry use. Designed to protect hinges, rollers, locks, bolts, switches, and handles, the LM 40 is good for water resistance and corrosion protection while avoiding attacking plastics, paints, metals, and wood, the company stated. The spray also defends against rust and provides optimal protection for chrome parts.To use, simply spray the area to be treated and leave it to take effect.