Loctite 577 Thread lock Paste for Thread Sealing 250 ml Tube | LOCTITE® 577

The Loctite yellow 250ml gasket sealant paste is a general-purpose thread sealant for straight/straight and straight/taper threads and fittings. It fills the space between threaded parts and seals and locks at the same time. This paste is composed of methacrylate and has an excellent chemical and thermal resistance. It is designed for the locking and sealing of metal pipes and fittings as well as other threaded assemblies. This product provides an instant, low-pressure seal for metal pipes and fittings. It will not creep, shrink or shred. The product offers less migration of liquid product after application.

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

For medium strength applications
Suitable for sealing of pipe fittings and coarse threaded components
Thread sealing

ANSI/ESD S20.20:2014
BS EN 61340-5-1:2007
DVGW approved