Castrol Rustilo WDP Spray (previously called Castrol Penetrat WDP Spray) is a multi-purpose aerosol spray oil with good penetrating properties, excellent rust-dissolving ability and outstanding corrosion protection.Rustilo WDP Spray is used in industrial facilities and workshops where it dissolves rust on seized screws, nuts, roller bearings, pulleys, bolts, spring leaves and provides short term rust prevention and corrosion protection of machine elements, wire ropes, tools etc. Rustilo WDP Spray can also serve as chain lubricant in industrial plants and workshops at room temperature. In motor vehicles Rustilo WDP Spray is used to loosen rusted and seized parts short time after application, eliminates squeaking noises and improves sliding properties, keeps locks, hinges, joints etc. mobile and prevents leak currents in ignition systems.