LOCTITE® 290 Wicking Grade Threadlocker
Features and Benefits
Thin, low-viscosity threadlocker with the ability to flow into difficult-to-reach cracks and crevices, making it ideal for locking preassembled fasteners.
LOCTITE® 290 is a green, medium-high strength threadlocker designed for the locking and sealing of threaded fasteners. Because of its low viscosity, the product wicks between engaged threads by capillary action and eliminates the need for disassembly prior to application. This makes it ideal for sealing porosities in welds, castings and powdered metal parts. The anaerobic adhesive cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage due to shock and vibration.
- Prevents fastener loosening on vibrating assemblies, e.g., pumps, gear boxes, presses
- Ideal for locking preassembled fasteners, e.g. instrumentation fasteners, electrical connectors and set screws
- Seals porosities in welds, castings and powdered metal parts
- Requires heat for disassembly
- Meets Mil Spec: Mil-S-46163A Type III Grade R
Documents and Downloads
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Technical Information
| Application method | Post applied |
| Application temperature | -55.0 - 150.0 °C (-65.0 - 300.0 °F ) |
| Applications | For pre-assembled fasteners, Porosity sealing, Threadlocking |
| Breakaway torque, M10 Steel Nuts/Bolts | 10.0 N·m (90.0 in./lb. ) |
| Color | Green |
| Cure type | Anaerobic cure |
| Fixture time | 20.0 min. |
| Key characteristics | Disassembly: disassembly with heat, Fluorescent, Strength: medium to high strength, Viscosity: low viscosity, Wicking / penetrating grade |
| Physical form | Liquid |
| Prevail torque, M10 Steel Nuts/Bolts | 29.0 N·m (260.0 in./lb. ) |
| Recommended for use with | Metal: brass, Metal: steel, Metal: steel - stainless steel |
| Viscosity, Speed 20 RPM | 40.0 mPa·s (cP) |
How to
Step by Step Guide
1. Preparation - Cleaning
It is recommended to use LOCTITE® SF 7063/7064/7070 to degrease and clean surfaces prior to applying adhesive.
2. Application - Post-Assembly
For assembled nut and bolt, dispense a low-viscosity wicking grade threadlocker, such as LOCTITE 290, at the nut and bolt juncture.
3a. Disassembly - Hand Tools
Disassemble with standard hand tools.
3b. Disassembly - Heat
If disassembly is not possible using normal hand tools, apply localized heat to approximately 260°C. Disassemble while hot with standard hand tools.
Hint
For the disassembly of corroded or seized parts use LOCTITE® LB 8040 Freeze and Release.
Frequently Asked Questions
What products can I use to prevent vibration loosening of parts? How do I prevent vibration loosening and leak paths?
What temperatures can threadlockers/thread sealants/gasketing materials work up to?
Are LOCTITE® anaerobic threadlockers/sealants/gasketing materials resistant to fluids such as gasoline, diesel, engine oil, water, glycol, acids, alkalis, hydraulic fluid, etc.?
Can LOCTITE® anaerobic threadlockers be used as thread sealants? Can LOCTITE® anaerobic thread sealants be used as threadlockers?
LOCTITE® 290
Thin, low-viscosity threadlocker with the ability to flow into difficult-to-reach cracks and crevices, making it ideal for locking preassembled fasteners.
How to Secure Threaded Assemblies
Threaded assemblies are present in most machines. Learn how they work and how to get your threads secured with LOCTITE®XPLORE, our new e-learning platform for Assembly, Maintenance and Vehicle Repair professionals.