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
Features and Benefits
When fully cured, the sealant can withstand pressure more than 200bar
Chemical ingredient present is methacrylate
Medium strength
Chemical ingredient present is methacrylate
Higher-strength on contaminated surfaces
High viscosity, thixotropic
Improved thermal performance
Offers gap performance to 0.25 mm
Operating temperature ranges between -55°C and 150°C
high-performance on passive metals without an activator
Easy to apply
Chemical ingredient present is methacrylate
Medium strength
Chemical ingredient present is methacrylate
Higher-strength on contaminated surfaces
High viscosity, thixotropic
Improved thermal performance
Offers gap performance to 0.25 mm
Operating temperature ranges between -55°C and 150°C
high-performance on passive metals without an activator
Easy to apply
Applications
For medium strength applications
Suitable for sealing of pipe fittings and coarse threaded components
Thread sealing
Suitable for sealing of pipe fittings and coarse threaded components
Thread sealing
Launch DateMay 28, 2026
Days In Market142
VendorLoctite
Variants2