Loctite 620 Retaining Compound High Strength High Temp

LOCTITE® 620 is a 1-part, high-strength, anaerobic-curing retaining compound designed for bonding close-fitting cylindrical parts, especially where high temperature resistance is needed. Ideal for bonding shafts, gears, pulleys, and other cylindrical components, it cures in the absence of air between metal surfaces to prevent loosening and leakage caused by shock and vibration. Gap filling ranges from 0.15 mm to 0.25 mm (0.006" to 0.01").

Key Features:

  • High Strength: Provides strong, durable bonding for cylindrical parts.
  • High Temperature Resistance: Operates from -55°C to 230°C (-65°F to 450°F).
  • Gap Filling: Can fill gaps from 0.15 mm to 0.25 mm.
  • Corrosion Resistant: Bonds metal without rust formation.
  • Versatile Applications: Ideal for shafts, gears, pulleys, and other slip-fitted cylindrical parts.

Technical Specifications:

Specification Details
Loctite Number 620
Colour Green
Cure Type Anaerobic cure
Application Method Dispense system, Manual
Applications High temperature applications, Slip fitted parts, Retaining
Fixture Time 60 min
Gap Fill 0.15 - 0.25 mm
Shear Strength (Steel) 26 N/mm² (3800 psi)
Operating Temperature -55°C to 230°C (-65°F to 450°F)
Viscosity 8000 mPa·s (cP)
Physical Form Liquid
Recommended for Use With Metal: Steel

Additional Information:

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