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
• Instant low pressure seal
• Suitable for all metals
• Medium-strength, general purpose thread sealant for sealing metal threads
• Locks connection against vibration-induced loosening and other stresses
• Easy to apply
• Cures on active and inactive metals
• NSF P1 Reg. No. 123001
• DVGW Approval (EN 751-1): DVGW Reg. No. NG-5146CQ0312