Yamashield&Trade; A High-Quality Combination Of Solvents, Lubricants And Waxes Designed For Penetration, Moisture Displacement, Lubrication While Providing A Shield Of Protection. It Loosens Rusty And Corroded Parts That Dries To A Thin, Waxy Film That Clings To Metal That Requires A Solvent To Cut Through. (Replaces Boeshield T-9 Protectant And Lubricant Part # Acc-T9Spr-Ay-00)