Are you looking for a new thread sealant?
Loctite 577 is the best general-purpose thread sealant available. It’s designed to provide an immediate, low-pressure metal pipe and fitting protection for threaded assemblies. Chemical resistance is excellent making it unlike other products that may crawl or shred. It is also less prone to fluid migration after application while also being able resist most environmental conditions such as water vapor spout, sunlight exposure etc.
Loctite 577 is a medium-strength thread sealant that has been approved by DVGW. It has been designed to give a fast, seals with superior chemical resistance. It locks the connection against vibration-induced loosening and other stresses. It’s simple to apply and cures on both inactive and active metals.
- General-purpose medium-strength thread sealant for sealing metal threads
- Suitable for all metals
- Instant low-pressure seal
- Excellent chemical resistance
- 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-5146CQ031
Loctite 577 Easy Assembly, Disassembly and Cleanup
Assembly and disassembly couldn’t be easier than with Loctite 577.
When assembling, to ensure a tight seal, clean all surfaces (external and internal) with LOCTITE® cleaning solvent. For best results leave to dry before assembly or else you will risk damaging your product! If the material is an inactive metal spray on some of our SF 7471™ or SF 7649™ products for increased durability during installation procedures. Beads should be placed around the top threads in a total of 360 degrees of the male fitting then forcefully push in place whilst applying compliant practices until it’s firmly tightened using a wrench as per required size/ torque specifications.
Disassembly is easy using standard hand tools. Use localized heat to approximately 250 °C (480F) when hand tools won’t work due to excessive engagement lengths or large diameters of more than 1 inch. Remove the parts while they are still hot.
We’ve got you covered when it comes to clean up too. Unlike some products, Loctite 577 cleans up simply by soaking the product in Loctite solvent and using a wire brush to remove excess sealant.
When you need to get the job done right the first time, use Loctite 577.