Gasket Maker is an anaerobic non-corrosive gasket material designed 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 .050 inch and cures to a solvent-resistant seal that will not tear or decay during service. Use Anaerobic Gasket maker on water pumps, fuel pumps, thermostat housings, transmission pans, transmission case covers, transaxle casings, o-ring replacements, and many many other applications. 50ML bottle.