Threadlockers
Blue, medium-strength threadlocker for large bolts
A medium strength, medium viscosity, thixotropic threadlocking adhesive for metal thread sizes up to M36.
All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the US, Germany, and elsewhere.
Size Please make your selection 10 ml
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- Description
- Technical specification
- Ratings & reviews
- Question & answer
LOCTITE® 242 is a general purpose, medium strength, medium viscosity, anaerobic-curing threadlocking adhesive. It is thixotropic to prevent migration after application, and is perfect for fasteners requiring normal disassembly with standard hand tools.
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Medium strength
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Medium viscosity
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Fast fixture
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Thixotropic for ease of application
- Product category:
- Threadlockers
Technologies:
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Acrylates, anaerobic cure
- Chemical basis / base:
- Methacrylate
- Color:
- Blue
- Fixture time:
- 5.0 min. - 20.0 min.
- Key characteristics:
- Thixotropic
- Recommended for use with:
- Metal: brass,Metal: steel,Metal: steel - stainless steel
- Viscosity, Brookfield - RVF, @ 25.0 °C:
- 800.0 mPa·s (cP) - 1600.0 mPa·s (cP)
How to use
It is recommended to use LOCTITE® SF 7070 to degrease and clean surfaces prior to applying LOCTITE 242 threadlocker.
If cure speed is too slow due to passive metals (stainless steel, aluminum and plated metals) or low temperature (below 5°C), use activator LOCTITE® SF 7649 (see cure speed vs activator graph in the TDS).
Apply liquid threadlocker to the engagement area. For manual dispensing, the use of a peristaltic handgun or the LOCTITE® Pro Pump is recommended to ensure a consistent application volume.
Insert bolt and apply threadlocker to the exposed thread. Assemble nut and tighten to the correct/specified torque.
Apply several drops of liquid threadlocker down the sides of the blind hole filling the lower third. Apply several drops to the bolt.
Assemble and tighten. If several bolts are being assembled, torque them down to the correct value within the fixture.
Disassemble with standard hand tools.
For the disassembly of corroded or seized parts use LOCTITE® LB 8040 Freeze and Release.
FAQ
Prevent vibration loosening, prevent leaks, protect threaded components from corrosion and increase the reliability of mechanical fasteners by using a LOCTITE® anaerobic threadlocking adhesive.
The standard continuous operating temperature range for LOCTITE® anaerobic adhesives is -55˚C to +150˚C.Depending on the specific application requirements, high-performance grades are also available offering increased temperature resistance. Please consult with the Henkel technical team for availability and grade selection.
Yes, LOCTITE® anaerobic adhesives and sealants become highly resistant thermoset polymers once cured, making them suitable for a vast number of applications. Consult our online product resources or contact our technical teams for further information.
Yes, these products are all anaerobic adhesives that will function in a similar way. Variations in the adhesive characteristics (viscosity, gap-fill, strength etc.) will make them better suited to certain applications. Consult the product technical data sheets and/or LOCTITE® representatives for further information.
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