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LOCTITE® 272
Features and Benefits
A red, high strength, medium viscosity, anaerobic-curing threadlocking adhesive with high temperature resistance.
LOCTITE® 272 is a red, medium viscosity, high strength, anaerobic-curing, threadlocking adhesive with high temperature resistance. It is specially designed for the permanent locking and sealing of threaded fasteners and to withstand temperatures up to 232°C (450°F). The anaerobic adhesive cures when confined in the absence of air between close fitting metal surfaces, and prevents loosening and leakage from shock and vibration. Ideal for the locking and sealing of large bolts and studs.
- Medium viscosity
- High temperature resistance to 232°C (450°F)
- Resists shock and vibration
- Seals threads - allows through-hole tapping
- High strength
Documents and Downloads
Looking for a TDS or SDS in another language?
Technical Information
| Breakaway torque, M10 Steel Bolts | 23.0 N·m |
| Chemical basis / base | Methacrylate |
| Color | Red |
| Fixture time | 40.0 min. |
| Key characteristics | Thixotropic |
| Recommended for use with | Metal: steel |
| Viscosity, Brookfield - RVT, @ 25.0 °C Spindle 4, speed 20 rpm | 4000.0 - 15000.0 mPa·s (cP) |
How to
Step by Step Guide
1. Preparation - Cleaning
It is recommended to use LOCTITE® SF 7070 to degrease and clean surfaces prior to applying LOCTITE 272 threadlocker.
2. Preparation - Activation
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).
3. Application
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.
4a. Application - Through-Hole
Insert bolt and apply threadlocker to the exposed thread. Assemble nut and tighten to the correct/specified torque.
4b. Application - Blind Hole
Apply several drops of liquid threadlocker down the sides of the blind hole filling the lower third. Apply several drops to the bolt.
5. Assembly
Assemble and tighten. If several bolts are being assembled, torque them down to the correct value within the fixture.
6. Disassembly - Hand Tools
Disassemble with standard hand tools.
7a. Disassembly - Heat
If disassembly is not possible using normal hand tools, apply localized heat to approximately 250°C. Disassemble while hot.
7b. Disassembly After Heating - Hand Tools
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 LOCTITE® 272 threadlocker withstand?
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® 272
A red, high strength, medium viscosity, anaerobic-curing threadlocking adhesive with high temperature resistance.