Loctite Gasket Maker 515 Flange Sealant is a flexible, gasketing material for use on rigid machined flanges with less than 0.015 gap. Flexes with flanges that move in service. OEM approved use where OEs specify 515 or anaerobic gasket (cures in absence of air). Eliminates preformed, pre-cut, paper, rubber and cork gaskets
