Loctite 263: High-Strength Threadlocker for Heavy Loads and Harsh Environments

Loctite 263: Ultra-High Strength Threadlocker for Heavy-Duty Applications

1. Product Overview

Loctite 263 is an ultra-high strength, anaerobic threadlocker designed for permanent locking of threaded fasteners in heavy-duty and high-vibration environments. This industrial-grade adhesive ensures secure and reliable performance even in the most extreme conditions, making it ideal for applications where high torque, high temperature, and harsh environments are factors. Loctite 263 is particularly suited for use in automotive, industrial machinery, and equipment maintenance, providing unmatched stability and durability.

2. Key Features

• Ultra-High Strength Locking
  • Provides exceptional holding power, ideal for securing threaded connections that require permanent fixation.
• Vibration Resistance
  • Effectively prevents loosening due to vibration, making it suitable for high-load and high-stress applications.
• High-Temperature Resistance
  • Maintains strong bonding performance at temperatures up to 180°C (356°F), making it suitable for high-temperature environments.
• Chemical Resistance
  • Excellent resistance to oils, lubricants, and various chemicals, ensuring long-term durability in harsh conditions.
• Permanent Locking
  • Designed for applications where disassembly is not required, offering long-lasting security for critical connections.

3. Product Specifications

• Chemical Type: Methacrylate
• Color: Red
• Viscosity: 1,000 – 2,000 mPa·s (cP)
• Cure Time: Full cure in 24 hours at room temperature
• Maximum Thread Size: M36
• Operating Temperature Range: -55°C to +180°C (-67°F to +356°F)
• Shear Strength: 20 N/mm²
• Breakaway Torque: 24-34 Nm (M10 bolts)
• Prevail Torque: 10-22 Nm
• Chemical Resistance: Excellent resistance to oils, lubricants, and various chemicals

4. Applications

• Heavy Machinery
  • Ideal for securing bolts and fasteners in heavy machinery, ensuring stability under extreme loads and conditions.
• Industrial Equipment
  • Provides reliable locking for threaded connections in industrial environments, particularly in high-vibration and high-temperature settings.
• Automotive Industry
  • Widely used in automotive applications to secure critical components, offering durability and resistance to harsh operating conditions.
• Equipment Maintenance
  • Suitable for maintenance tasks where high-strength locking is required, reducing the risk of fastener loosening and equipment failure.

5. How to Use

1. Clean the Threads: Ensure the threads are clean and free from oil, dirt, and debris for optimal adhesion.
2. Apply the Threadlocker: Evenly apply Loctite 263 to the threads of the fastener.
3. Assemble the Parts: Tighten the parts to ensure the threadlocker is evenly distributed.
4. Curing: Allow 24 hours for full cure at room temperature. Higher temperatures can accelerate the curing process.