WD-40 Multi-Use Product. WD-40 Multi-Use Product protects metal from rust and corrosion, penetrates between immobilized parts, displaces moisture and provides lubrication for almost all types of parts. Removes many types of dirt from most surfaces. Displaces moisture, preventing rusting and accelerating the drying of electrical systems. Penetrates between immobilized components and provides lubrication to improve equipment operation. Removes oil, dirt, grease and other contaminants while protecting metal surfaces from rust and corrosion. . Parameters: Capacity: 400 ml