Medium-strength, thread sealant

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