Prolong Super Lubricants PSL40050 Super Penetrating Lubricant SPL100 - 1-Gallon Bottle is formulated with AFMT advanced technology. It is designed to lubricate, penetrate, and prevent corrosion, free sticky mechanisms, displace moisture, stop squeaks, and reduce friction and wear on all metal surfaces. It cleans and protects metal surfaces, tools, or any metal equipment that is exposed to water or weather. It provides easy-to-apply protection and lubrication for hundreds of household, automotive, and recreational uses as well as commercial and industrial applications such as light duty machining, tapping, and drilling fluid.