Permatex 51031 High Temperature Anaerobic Flange Sealant, 50 ml Specially engineered for making or dressing gaskets in rigid assemblies Fills gaps up to 0.020 inches Permits clamping loads to be maintained for strong, leakproof assemblies Able to withstand temperatures to 400F Suggested Applications: Water pumps, thermostat housings, transmission pans, transmission case covers, transaxle casings, timing covers, and o-ring replacement