LOCTITE® 577

Features and Benefits

Available sizes:

Medium-strength, general purpose thread sealant for straight/straight and straight/taper threads and fittings. Fills the space between threaded parts and seals and locks at the same time.
LOCTITE® 577 is designed for the locking and sealing of metal pipes and fittings as well as other threaded assemblies. The product provides an instant, low-pressure seal for metal pipes and fittings. It will not creep, shrink or shred. It has excellent chemical and thermal resistance and offers less migration of liquid product after application.
  • Excellent chemical resistance
  • Easy to apply
  • Medium-strength, general purpose thread sealant for sealing metal threads
  • Instant low pressure seal
  • Cures on active and inactive metals
  • NSF P1 Reg. No. 123001
  • Suitable for all metals
  • DVGW Approval (EN 751-1): DVGW Reg. No. NG-5146CQ0312
  • Locks connection against vibration-induced loosening and other stresses
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Documents and Downloads

Safety Data Sheets and RoHs
LOCTITE 577, 250ml 2099610 en-AU
IDH: 2099610

Size Case: Bottle

Quantity: 10.0/case

No documents found

Technical Information

Agency approvals / certificates / specifications DVGW, NSF, WRAS
Application method Dispense System, Manual
Applications Pipe Sealing, Thread Sealing
Breakaway torque, Steel M10 33.0 N·m (295.0 in./lb. )
Colour Yellow
Cure type Anaerobic Cure
Key characteristics Chemical Resistant, Fluorescent, General Purpose, Immediate Low Pressure Sealing, Strength: Medium Strength, Surface Contamination-Tolerant, Temperature: High Temperature, Thixotropic
Operating temperature -55.0 - 150.0 °C (-65.0 - 300.0 °F )
Physical form Paste
Recommended for use with Metal, Metal: Passive Metal, Thread Type: Tapered
Viscosity, 20 RPM 25000.0 mPa·s