WARNING: Cancer and Reproductive HarmDescription
Designed for sealing threaded fittings in hydraulic and pneumatic systems, this product’s thixotropic behavior allows ease of use.
LOCTITE® 5452 (1265769) is a purple, thixotropic, anaerobic-curing thread sealant liquid designed for sealing threaded fittings in hydraulic and pneumatic systems. The thixotropic nature makes it suitable for large diameter pipes, and the sealant contains no fillers or particles that can interfere with a hydraulic system. It is useful with dry seal fittings such as O-Ring boss-style connectors by preventing loosening that can ultimately lead to leakage. It can be used as a sealant on mating surfaces of flare style fittings.
- Suitable for large diameter pipes
- Prevents thread loosening
- Contains no fillers or particles that can interfere with hydraulic systems
Typical Applications
- Hydraulic line fittings
- Brake fittings
- Transmission fluid fittings
- NPT, ORB or JIC fittings
Technical Information
| Breakaway torque, M10 Black Oxide Bolts | 3.5 N·m (31.0 in./lb. ) |
| Color | Purple |
| Key characteristics | Cure speed: fast cure, Thixotropic, Viscosity: high viscosity |
| Operating temperature | -65.0 – 360.0 °F (-55.0 – 180.0 °C ) |
| Physical form | Liquid |
| Viscosity, 20 RPM | 28000.0 mPa·s (cP) |
How To – Step by Step Guide
- PREPARATION – CLEANING: For best results, clean all surfaces (external and internal) with a LOCTITE® cleaning solvent and allow to dry.
- PREPARATION – ACTIVATION: Use Activator 7471 or 7649 prior to application of sealant and allow to dry, if quicker service time is required.
- ASSEMBLY: For NPT or other taper joint fittings apply a 360° band of sealant to leading threads of the male fitting. For larger threads and gaps, adjust the volume of sealant accordingly. For ORB & O-Ring Fittings apply a 360° band of sealant to the threads for the male fitting. Ensure product is applied into roots of the threads and adequate coverage. For JIC Fittings coat the face of the male JIC with the sealant. This is applicable for new and damaged fittings. Also apply to threads for vibration resistance.
- DISSASSEMBLY: Remove with standard hand tools. Where hand tools do not work because of excessive engagement length or large diameters (over 25 mm), apply localized heat to approximately 480 °F. Disassemble while hot.
- CLEANUP: Cured product is most easily removed with mechanical abrasion such as a wire brush and wiped Fittings if mechanically acceptable can normally be reused once cleaned. clean with a Cotton cloth.
Frequently Asked Questions
Is LOCTITE 5452 suitable to use for sealing threaded fittings in hydraulic systems? LOCTITE® 5452 thread sealant contains no fillers or particle that could contaminate system fluids, foul valves or clog fine filters or screens in fluid power systems. Any excess, liquid material that may get squeezed out of the threads upon assembly is miscible and will not form gums or precipitates with power fluids.
What is an “anaerobic-curing” adhesive or sealant? An anaerobic-curing adhesive or sealant is one that cures when confined in the absence of air between close fitting metal threads. Once cured between the threads, anaerobic-curing adhesives and sealants prevent loosening and leakage caused by shock, vibration and high pressures. Any material outside the joint will remain liquid and can be simply wiped or washed away after assembly.
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