LOCTITE® 272™ is a one-component, high strength, anaerobic threadlocker designed for the permanent locking and sealing of threaded fasteners. It cures when confined in the absence of air between close fitting metal surfaces and prevents loosening and leakage from shock and vibration. It is a red-orange, medium viscosity dimethacrylate ester liquid. Typical applications are large bolts and studs (M25 and larger). Where cure speed is too slow, Activator 7471™ or 7649™ is used.
Typical Properties
- Specific gravity (25 °C) 1.11; viscosity (Brookfield RVT, spindle 4, 20 rpm) 4000–15,000 mPa·s
- After 24 hours (M10 steel) breakaway torque 23 N·m, prevail torque 25 N·m
- Compressive shear strength (steel pins and collars, ISO 10123) min 14.5 N/mm²; after 72 hours at 200 °C, tested at 200 °C: min 20 N/mm²
- After 720 hours at 87 °C: 62% in motor oil and gasoline, 80% in toluene, 70% in phosphate ester
Use
- Not for use in pure oxygen or oxygen rich systems or with chlorine or strong oxidizing materials; not recommended on plastics
- For disassembly, heat the nut or bolt locally to about 250 °C and disassemble while hot
| Technical Data | |
|---|---|
| Viscosity 25°C mm2/s | 4.000-15.000 |
| Chemical Composition | Dimethacrylate ester |
| Storing Temperature | 8 - 28 °C |
| Application | Screw locking |
| Curing Time | 40 min |
| Applicable Surfaces | Metal: steel |
| Strength | High |
| Specific Gravity | 1.11 |
| General | |
| Packing | 50 ML |
| Color | Red |
| Specifications & Approvals | |
| NSN · P/N · CAGE |
6850-01-171-7628
· LOCTITE 272
· CAGE Z5382
(BT)
|
| CAGE (Manufacturer) | Z5382 |