LOCTITE LB8700
Harmonization Code : 3403.19 | Lubricating Preparations (With 70% or More Petroleum Oils) For Automotive and Other Uses

Main features
- Molybdenum Disulfide Anti-Seize Formulation
- Galling Prevention in Assembly
- Improved Clamp Load Consistency
Product Description
LOCTITE® LB 8700™ (Moly 50™) is a molybdenum disulfide-based anti-seize and thread lubricant designed to prevent galling, seizure, and wear in threaded fasteners and metal assemblies. The non-curing compound provides excellent lubricity, improves clamp load consistency, and facilitates future disassembly of components exposed to elevated temperatures and demanding service conditions. It is suitable for machine threads, tapered pipe threads, press-fit joints, and slip-fit assemblies.
Key Features & Benefits
- Molybdenum disulfide anti-seize formulation.
- Prevents galling and seizing of threaded components.
- Improves clamp load consistency.
- Provides excellent lubricity under load.
- Suitable for press-fit and slip-fit joints.
- Non-curing paste for easy assembly and disassembly.
- Tested to MIL-PRF-83483 requirements.
Recommended Applications
- Machine threads and fasteners.
- Tapered pipe threads.
- Press-fit assemblies.
- Slip-fit joints.
- Industrial maintenance and assembly operations.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
AppearanceAppearance
Smooth gray colored pasteSpecific GravitySpecific Gravity
1.41Additional Information
Technical Properties
As-Supplied / Before-Processing Properties
| Property | Value | Unit | Condition |
|---|---|---|---|
| Technology | Molybdenum Disulfide Based | — | Anti-seize lubricant |
| Appearance | Smooth Gray Paste | — | Single-component |
| Specific Gravity | 1.41 | — | 25°C |
| Penetration | 170 - 260 | 0.1 mm | ISO 2137 |
| Weight per Gallon | 10.99 - 11.99 | lb/gal | Typical |
| MIL Specification | MIL-PRF-83483 | — | Qualified test requirements |
Technical Properties
After-Processing / Final-State Properties
| Property | Value | Unit | Condition / Method |
|---|---|---|---|
| Operating Temperature Range | -29 to +398 | °C | Typical service range |
| Torque Coefficient (K Factor) | 0.13 | — | Lubricated 12.7 mm grade 8 bolt |
| Torque Coefficient (Unlubricated) | 0.27 | — | Solvent-cleaned fastener |
| Clamp Load Efficiency | Improved | — | Higher preload at equivalent torque |
| Thread Lubrication | Excellent | — | Machine and pipe threads |
| Press-Fit Compatibility | Suitable | — | Assembly and disassembly aid |
| Slip-Fit Compatibility | Suitable | — | Surface protection and lubrication |
| Seizure Protection | Excellent | — | High-load threaded assemblies |





















