LOCTITE 272
Harmonization Code : 3506.10.00.00 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg
Main features
- High-Strength Thread Retention
- Medium-Viscosity Application Control
- No Mixing Required
Product Description
LOCTITE® 272™ is a high-strength anaerobic threadlocking adhesive formulated for the permanent locking and sealing of threaded metal fasteners. The one-component acrylic adhesive cures when confined between closely fitting metal surfaces in the absence of air, preventing loosening and leakage caused by vibration, shock and dynamic loading. Designed for demanding industrial environments, LOCTITE 272 is particularly suitable for locking and sealing large bolts and studs M25 and larger. Its high-temperature resistance, chemical durability and strong retention performance make it ideal for heavy equipment, industrial machinery and high-heat service applications.
Key Features & Benefits
- High-strength threadlocker for permanent locking and sealing.
- Prevents loosening caused by shock, vibration and dynamic loading.
- Designed for large bolts and studs including M25 and larger fasteners.
- Excellent high-temperature performance and retention strength.
- One-component anaerobic formulation requiring no mixing.
- Provides resistance to oils, gasoline, water and industrial chemicals.
- Suitable for heavy-duty industrial and maintenance applications.
Recommended Applications
- Large bolts and stud assemblies.
- Heavy industrial machinery and process equipment.
- Power generation and high-temperature service environments.
- Permanent threadlocking and thread sealing applications.
- Equipment exposed to vibration, shock and elevated operating temperatures.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Additional Information
As-Supplied / Before-Processing Properties
| Property | Value | Unit | Condition |
|---|---|---|---|
| Technology | Acrylic | — | Anaerobic threadlocker |
| Chemical Type | Dimethacrylate Ester | — | One-component adhesive |
| Appearance | Red-Orange Liquid | — | Uncured |
| Strength Classification | High | — | Threadlocking adhesive |
| Specific Gravity | 1.11 | — | 25°C |
| Brookfield Viscosity | 4,000 - 15,000 | mPa·s | RVT, spindle 4, 20 rpm, 25°C |
| Density | 1.11 | g/cm³ | 20°C |
| Flash Point | >100 | °C | Closed cup |
After-Processing / Final-State Properties
| Property | Value | Unit | Condition / Method |
|---|---|---|---|
| Breakaway Torque | 23 | N·m | ISO 10964, M10 steel nuts and bolts, 24 h @ 22°C |
| Prevail Torque | 25 | N·m | ISO 10964, M10 steel nuts and bolts, 24 h @ 22°C |
| Compressive Shear Strength | ≥14.5 | N/mm² | ISO 10123, steel pins and collars, 24 h @ 22°C |
| Compressive Shear Strength | ≥20 | N/mm² | After 72 h at 200°C, tested at 200°C |
| Coefficient of Thermal Expansion | 80 × 10⁻⁶ | K⁻¹ | ISO 11359-2 |
| Thermal Conductivity | 0.1 | W/(m·K) | ISO 8302 |
| Specific Heat | 0.3 | kJ/(kg·K) | Typical cured value |
| Heat Resistance | Up to 200 | °C | Hot strength and aging performance |
