Permatex Anaerobic Gasket Maker Permatex Anaerobic Gasket Maker is a non-corrosive gasketing material specially formulated for aluminum, iron and steel flanged mating surfaces. It serves as an excellent solution for on-the-spot and emergency repairs, especially when conventional gaskets are not available. This product is particularly well-suited for machined aluminum components such as transmission pans, transmission case covers, transaxle casings, transfer cases, split crankcases, pumps and housings. It provides a reliable and durable seal in critical automotive and industrial applications. Features: Non-corrosive gasketing material designed primarily for use on aluminum, iron and steel flanged mating surfaces Ideal for on-the-spot and emergency repairs or when a conventional gasket is unavailable Fills gaps up to .015 and cures to a solvent-resistant seal that will not tear or decay during service Parts disassemble easily even after extended service Old gasket material can be removed in minutes with a putty knife