Loctite 243: Medium-Strength Locking, Easily Handling Industrial Challenges

1. Product Overview

Loctite 243 is a medium-strength threadlocker designed to prevent loosening caused by vibration. It is suitable for use on all metal threaded assemblies, including stainless steel and plated surfaces, and maintains strong locking performance even in slightly contaminated environments (such as those with industrial oils, cutting fluids, and lubricants).

2. Key Features

• Suitable for All Metal Threads
  Loctite 243 can be used on steel, stainless steel, and galvanized threads, preventing loosening caused by vibration.
• Oil Tolerance
  Maintains stable locking performance even in slightly oily environments, without the need for complete thread cleaning.
• Medium-Strength, Removable
  Provides medium-strength locking while allowing for disassembly, ideal for threaded connections requiring periodic maintenance.
• High Temperature and Chemical Resistance
  Withstands temperatures up to 150°C and resists various chemicals, making it suitable for harsh industrial environments.
• Sealing and Anti-Loosening
  Not only prevents thread loosening but also fills gaps, preventing oil and gas leaks.

3. Product Specifications

• Chemical Type: Methacrylate
• Color: Blue
• Viscosity: 900 – 1,500 mPa·s (cP)
• Cure Time: 24 hours for full cure
• Maximum Thread Size: M36
• Operating Temperature Range: -55°C to +150°C
• Shear Strength: 9.5 N/mm²
• Breakaway Torque: 19 Nm (M10 bolts)
• Prevail Torque: 7 Nm (M10 bolts)
• Chemical Resistance: Excellent resistance to oils, lubricants, and industrial fluids

4. Applications

• Machinery Assembly and Maintenance
  Loctite 243 ensures the stability of threaded connections in machinery under high vibration and shock conditions.
• Automotive Manufacturing and Repair
  Widely used in automotive component assembly, especially in engines and transmission systems.
• Heavy Industry and Manufacturing
  Performs excellently in industrial equipment and pipeline connections, suitable for harsh working conditions.
• Oil and Gas, Chemical Industry
  Resists oil and chemical contamination in petroleum, natural gas, and chemical production, ensuring equipment safety.

5. How to Use

1. Clean the Threads (skip if slightly oily): Ensure the thread surfaces are clean and dry.
2. Apply the Adhesive: Evenly apply Loctite 243 to the thread surfaces.
3. Assemble the Threads: Tighten the threads to ensure the adhesive covers evenly.
4. Cure Time: Allow 24 hours at room temperature for full curing.