5452™ Fast Cure Thread Sealants, Tube, 50 ml, -54° C - 149° C/-65° F - 300° FDesigned for threaded fittings commonly found in hydraulic and pneumatic systems. The thixotropic nature makes LOCTITE 5452 suitable for large diameter pipes. This material is useful with dry seal fitings such as O Ring boss style connectors, by preventing the rotation that ultimately leads to leakage. can be used as a sealant on mating surfaces of flare style fittings to seal scratches and surface imperfections. It contains no fillers or particles