LOCTITE 542 – Medium-strength thread sealant
HS code:
35061000000
LOCTITE 542 – Medium-strength thread sealant for fine metal threads and pipe fittings
Product description
LOCTITE 542 is a low-viscosity, single-component sealant based on dimethacrylate ester, which has been specially developed for securing and sealing fine metal threads, fittings, and pipe screw connections. Anaerobic curing begins on contact with metal and in the absence of air between tightly fitting threaded surfaces. This creates a permanent, vibration- and pressure-resistant bond that reliably prevents even the smallest leaks and the screw connection from loosening on its own.
Thanks to its thixotropic consistency, LOCTITE 542 adheres precisely to the thread after application, preventing it from running and ensuring even distribution in the thread gap. The product offers medium strength locking, allowing connections to be loosened with standard hand tools if necessary. LOCTITE 542 is resistant to numerous chemicals, oils, fuels, coolants, and brake fluids, and remains reliably sealed even under temperature fluctuations or heavy loads.
The brown liquid sealant is particularly suitable for use in hydraulic and pneumatic systems, in industry, in mechanical engineering, and in plant construction as a whole. Thanks to its versatile compatibility and ease of use, LOCTITE 542 is an indispensable product for any professional maintenance and installation of metal pipes and fittings.
product features
- Color: brown
- Strength: medium, can be dismantled with hand tools
- Chemical basis: dimethacrylate ester, single-component, anaerobic curing
- Viscosity (25 °C): 400–800 mPa·s (at 20 rpm), thixotropic
- Breaking torque (M10 steel): 15 Nm
- Continuous torque (M10 steel): 9 Nm
- Compressive shear strength (steel): ≥6.5 N/mm²
- Temperature range: -55 °C to +150 °C
- Resistance: engine oil, gasoline, brake fluid, water/glycol, ethanol, acetone
- Curing: hand-tight after a few minutes, final strength after 24 hours
-
Storage life: optimal at 8–21 °C, unopened at least 24 months
Suitable materials
- Metal pipe threads and fittings
- Steel, stainless steel, brass, copper
- Coated and galvanized metal surfaces
-
Not recommended for plastics (especially thermoplastics)
Typical areas of application
- Sealing of fine threads and pipe fittings
- Securing connectors in hydraulic and pneumatic systems
- Thread seal in plant and mechanical engineering
- Maintenance and servicing of industrial plants
- Applications in heating, sanitary, and refrigeration systems
-
Sealing threaded fittings and brass screw connections
Processing instructions
- Preparation: Thoroughly clean and dry the thread (e.g., with LOCTITE cleaner); for passive surfaces, use an activator (e.g., LOCTITE 7471 or 7649) if necessary.
- Application: Apply the product in a 360° ring shape to the start of the external thread (leaving the first thread free), and to the internal thread if necessary.
- Assembly: Screw in the screw connection as usual and tighten with a tool.
- Sealing effect: Immediate sealing effect against low pressures, complete chemical and mechanical resistance after 24 hours.
- Disassembly: Can be loosened using standard hand tools; for larger threads, heat locally if necessary (approx. 250 °C).
- Cleaning: Cured product can be removed by soaking in solvent and mechanical removal.
Note: LOCTITE 542 has been specially developed for metal threads and is not suitable for use on plastic or non-metal threads.
Technische Daten zu LOCTITE 542 – Mittelstarkes Gewindedichtmittel
| product information | |
|---|---|
| manufacturer | Henkel Loctite |
| brand | Loctite |
| operating temperature | -55.0 °C - 150.0 °C |
| product type | Thread seals, industrial sealants |
| container | 10 ml, 50 ml, 250 ml |
| UFI (Unique Formula Identifier) | 9KW2-R0SH-700N-JHS5 |
| Physical properties | |
|---|---|
| Viscosity 20 rpm | 600.0 mPa.s (cP) |
| Color | brown |
| General | |
|---|---|
| Approvals | DVGW, WRAS |
| Breakaway torque, steel M10 | 15.0 N·m |
| technology names | Acrylates, anaerobic curing |
| Approvals | WARS |
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product specifications
| product information | |
|---|---|
| container | 10 ml or 50 ml or 250 ml |
| manufacturer | Henkel Loctite |
| brand | Loctite |
| operating temperature | -55.0 °C - 150.0 °C |
| product type | Thread seals, industrial sealants |
| UFI (Unique Formula Identifier) | 9KW2-R0SH-700N-JHS5 |
| Physical properties | |
|---|---|
| Viscosity 20 rpm | 600.0 mPa.s (cP) |
| Color | brown |
| Uncategorized | |
|---|---|
| Approvals | DVGW, WRAS, WARS |
| Breakaway torque, steel M10 | 15.0 N·m |
| technology names | Acrylates, anaerobic curing |
| keywords | |
|---|---|
| keywords | |
Dokumente und Datenblätter
Sicherheitsdatenblätter (SDS) und technische Datenblätter (TDS) zum Download: