LOCTITE® 620 High Temperature Retaining Compound

Features and Benefits

This anaerobic-curing retaining compound is designed for bonding cylindrical fitting parts, particularly where high strength with high temperature resistance is required.
When it comes to bonding locating pins in radiator assemblies, sleeves in pump housings and bearings in auto transmissions – especially when you need high temperature resistance up to 450°F (232°C) – LOCTITE® 620 is a good choice. This high strength, anaerobic-curing retaining compound is designed for bonding cylindrical fitting parts to prevent loosening and leakage due to shock and vibration. It cures when confined in the absence of air between close-fitting metal surfaces, and can fill gaps from 0.006" - 0.01" (0.15mm - 0.25mm).  
  • Ideal for shafts, gears, pulleys and similar cylindrical parts
  • Operating temperature: -65°F to 450°F (-55°C to 230°C)
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Technical Information

Agency approvals / certificates / specifications DVGW (EN 751-1): NG-5146AR0622
Application method Dispense System, Manual
Applications For High Temperature Applications, For Slip Fitted Parts, Retaining
Color Green
Cure type Anaerobic Cure
Fixture time 60.0 min.
Gap fill 0.15 - 0.25 mm
Key characteristics Cure Speed: Slow Cure, Gap Filling, Strength: Medium to High Strength, Temperature: High Temperature, Viscosity: High Viscosity
Number of components 1 Part
Operating temperature -55.0 - 230.0 °C (-65.0 - 450.0 °F )
Physical form Liquid
Recommended for use with Metal: Steel
Shear strength, Steel 26.0 N/mm² (3800.0 psi )
Viscosity 8000.0 mPa·s (cP)