Loctite 554 Pipe Sealant 250ml Bottle
The sealant is used in place of specialty non-hardening compounds, litharge, glycerine, and sealing tape. This product is not for slip fitted tube joints.
This product is typically used in applications up to 149°C. Typical applications include metal and fiber plants, chemical processing, paper processing plants, waste treatment facilities and textile industries.
| Category | Adhesive | Brand | Henkel |
| Part No. | LOCTITE 554 | OEM Part No. | LOCTITE 554 |
| Alt Part No. | Country of Origin | USA | |
| Pro Category | Is Return | No | |
| Condition | Self Life | 730 days from the Date of Manufacture (DOM) | |
| Pack Size | |||
Loctite 554 is a red, high-strength anaerobic thread sealant specifically engineered for the locking and sealing of metal pipes and fittings. Known as a "Refrigerant Sealant," it provides maximum resistance to harsh solvents and chemicals. It is designed to replace traditional sealing methods like Teflon tape, litharge, and glycerine, creating a vibration-proof seal that prevents fluid and gas leaks in heavy-duty industrial systems.
Restrictions
- Substrate Limitation: Recommended for metal surfaces only. It is generally not suitable for plastics, especially thermoplastics, as it may cause stress cracking.
- Oxidizing Agents: Not recommended for use in pure oxygen or oxygen-rich systems; avoid contact with chlorine or other strong oxidizing materials.
- Joint Type: Not intended for use on slip-fitted tube joints; designed specifically for threaded connections.
- Safety: For professional use only; avoid prolonged skin contact and ensure adequate ventilation during application.
Technical Info:
- Chemical Type: Methacrylate Ester (Acrylic).
- Color: Red Liquid.
- Viscosity: 2,500 cP (Medium viscosity, non-runny).
- Strength: Medium to High (provides permanent locking).
- Breakaway Torque: ~27.2 Nm (on 3/8 x 24 steel nuts/bolts).
- Temperature Range: -54°C to +149°C (-65°F to +300°F).
- Cure Type: Anaerobic (cures in the absence of air between close-fitting metal surfaces).
- Container Size: 250ml Bottle.
- Weight: Approximately 0.75 lbs (0.34 kg).
- Classification: Generally classified under EAR99 for export; HTS Code: 3506.91.5000.
- Lead Time: Typically ships within 24–48 hours for in-stock items. Global shipping is available.
- Brand: Henkel / Loctite.
- Model Number: 55441 (or IDH 135489).
- Max Pipe Diameter: Up to 50 mm (2 inches) for optimum solvent resistance.
- Chemical Resistance: Specifically resistant to refrigerants (R-11, R-12, R-22, R-502) and aggressive processing chemicals.
- Shelf Life: 730 days from the Date of Manufacture (DOM).
