Loctite 518 Semi-flexible, medium-strength anaerobic flange gasket Easy to automate Reduces process costs – eliminates manual assembly of conventional gaskets NSF P1 Reg. No. 123758 For active and inactive rigid metal flanges Cures through minor surface contamination Adapts to flange surface irregularities and gaps up to 0.25 mm Gel-type consistency Seals instantly against low pressure Reduces inventory costs – no need for large inventory of cut gaskets Resists high pressure when fully cured No compression set or misaligned gaskets