Description
LOCTITE® 542 is designed for the locking and sealing of metal pipes and fittings as well as other cylindrical metal assemblies. The product cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage due to shock and vibration. The thixotropic nature of LOCTITE 542 reduces the migration of liquid product after application to the part.
- Pack size: 50 ml bottle (Loctite no. 234422)
- Also available in: 10 ml bottle, 250 ml bottle
Application
- Ideal for fine threads as used in hydraulic, pneumatic & general fittings
Characteristics
- Instant low-pressure seal
- Suitable for metal threads only
- Resistant to fuel, oil, coolants and hydraulic fluids
- Locks connection against vibration loosening
- DVGW approval (EN 751-1): NG-5146AR0855
Technical specifications
| Agency Approvals / Specifications | DVGW, WRAS |
| Breakaway Torque, Steel M10 | 15.0 N·m (130.0 in./lb. ) |
| Colour | Brown |
| Operating Temperature | -55.0 – 150.0 °C (-65.0 – 300.0 °F ) |
| Viscosity, 20 RPM | 600.0 mPa·s (cP) |
Hazard Information (CLP)

Signal word: Warning
Hazard Statements (H-Sentences)
- H319: Causes serious eye irritation.
- H335: May cause respiratory irritation.
- H412: Harmful to aquatic life with long lasting effects.
Precautionary Statements (P-Sentences)
Prevention:
- P261: Avoid breathing vapor/aerosol.
- P273: Avoid release to the environment.
Response:
- P337+P313: If eye irritation persists: Get medical advice/attention.
Supplementary Information
Contains: Methyl methacrylate, may produce an allergic reaction.
Storage and Disposal
Dispose of contents/container in accordance with national regulations.
Henkel AG & Co. KGaA, Henkelstr. 67, 40589 Düsseldorf, GERMANY, +49 211 7970, [email protected], www.henkel.com






Stella D. –
Very satisfied, it’s even better than I expected. Super fast delivery, thank you.
hugo_fr –
Well packaged and secure. Just as it should be. Works great.
david_de –
Satisfied with the quality. Top quality, fast delivery.
Fabian A. –
Very fast shipping.
max_de –
Everything went smoothly. Top product, would definitely recommend.
giacomo_s –
Everything as expected.
Alexandre –
Met my expectations. Very practical. Excellent packaging.