LOCTITE® 573 seals close-fitting joints between rigid metal faces and flanges. The product cures when confined in the absence of air between close-fitting metal surfaces. Typically used as a form-in-place gasket on rigid flanged connections, e.g. transmission and motor casings, etc. It is the ideal product for part assembly jobs extending over several hours. The nature of LOCTITE 573 reduces the migration of liquid product after application to the part.