Tri-Flow® is a superior lubricant with Teflon® which provides twice the lubricating power of most competitive brands. Its light viscosity allows for deep penetration into hard to reach moving parts. High grade petroleum oils and Teflon® provide optimum lubrication under extreme temperatures (-60 to 475F) and humidity. Formulated solvents soften and remove dirt and contaminants, while special additives displace moisture and prevent rust and corrosion. Unlike WD-40®, Tr-Flow® does not attract dust. Tri-Flow® is ideal for loosening rusted and corroded nuts and bolts. 2 Fl. Oz.