Castrol Rustilo™ 66 VCI is an oil type protective containing a vapour-phase corrosion inhibitor (VCI).Rustilo 66 VCI has been specifically designed for simultaneously cleaning and protecting ball and roller bearings. It is also suitable for the protection of all types of delicate or highly finished engineering products, particularly those, which contain moving parts and cannot be protected with greasy film coatings. Rustilo 66 VCI can be applied by immersion in a suitably designed treatment tank, which should be covered when not in use. It can also be applied by spray.