Kroil Penetrant with Silicone (formerly SiliKroil) combines the legendary Kroil formula with silicone enhancement for superior penetration lubrication and rust prevention. This high solvency oil penetrates the tightest spaces to break rust bonds and provides molecular-level lubrication.Kroil Original Penetrant With Silicone - 10 oz aerosolEnhanced formula with silicone for extra lubrication and protectionFrees frozen bearings slides gate valves hinges and chainsExcellent for coastal areas and salt/weather exposureMade in USA 50-State VOC CompliantIdeal for marine applications industrial maintenance and automotive repair where long-lasting penetration and corrosion protection are essential.