B'laster's PB(TM) penetrating catalyst has developed a positive reputation because of its simple yet effective use. It quickly breaks through rust and corrosion to let you get your job done quickly. It leaves a lubricating film on your parts that prevents further rusting, making PB(TM) especially useful on brake, exhaust, and suspension jobs. By eliminating the need for cheater bars and burning off or drilling out nuts and bolts in almost all jobs, PB(TM) saves you time, money, and energy. | B'Laster PB Penetrating Catalyst | Size 11 oz