Adopting special silicone ingredients, DE-RUST & LUBRICANT can foam a protective film on the metallic surface so as to prevent the surface from contacting with moisture and air, thus avoid the surface from oxidizing and rusting. It is widely applied in the protection of precision components, electric fitting contacts, iron and steel parts as well as supersensitive components. With its high permeating ability, it is commonly used in the maintenance of machines, armament, electric tools, and precision instruments. It can stop the squeaking of chairs, door hinges, metal gates,s and vehicle parts, in meantime, eliminating moistures so as to prevent the surface from corroding and making sure of its good lubricating performance.