Loctite 577 Adhesive – Product Introduction

Loctite 577 is designed to lock and seal threaded metal pipes and fittings. Particularly suitable for use on stainless steel without surface activation. The product cures when confined in the absence of air between the metal surfaces to close the fitting and prevent loosening and leakage from shock and vibration. The thixotropic nature of Loctite 577 reduces migration of the liquid product after application to the substrate. Loctite 577 provides strong curing performance. It works not only on active metals (e.g. brass, copper) but also on passive substrates such as stainless steel and plated surfaces. Loctite 577 can seal gaps up to 0.25 mm (0.01 in), has high temperature performance and is resistant to contamination. It cures in the presence of minor surface contamination from various oils, such as cutting, lubricating, anti-corrosion and protective fluids and detergents containing surfactants and corrosion inhibitors.

Loctite 577 adhesive specifications

Product form: Gold lake
Maximum thread size: Up to 2” (5.08cm)
Heat Resistant: 265ºF (130ºC)
Maximum working pressure(psi)/Setting time(N/mm²):10,000psi/ 72 hours(68.9)
Substrate material to be sealed: Metal
Fast sealing at low pressure range: No
Product specifications: 50ml bottle or 250ml bottle.

Outstanding uses of Loctite 577 glue

In daily life or in workshops. In almost all cases we need to use glue. Because this is an adhesive to connect the pins together. But compared to conventional glues, Loctite 577 glue has many outstanding features and better quality. Loctite 577 glue seals threads, threaded pipes and coarse threads. Multi-purpose sealing glue with medium force range is used for coarse threaded parts.
Particularly suitable for use on stainless steel without impacting the surface, preventing loosening and leakage due to impact, vibration, shock.

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Notes when using Loctite 577 Glue

This product is not recommended for use in oxygen-rich and/or pure oxygen-rich systems and should not be selected as a sealant for chlorine or other strongly oxidizing materials.
For safe handling information on this product, consult the safety data sheet (SDS).

Instructions for use of Loctite 577 Adhesive

*** For assembly

1. For best results when using Loctite 577 Adhesive, we should clean all surfaces (outside and inside) with Loctite cleaning solvent and let them dry completely before use.

2. If the material is an inactive metal or the cure rate is too slow, use LOCTITE® SF 7471™ or LOCTITE® SF 7649™ catalyst and allow to dry.

3. Rotate the threaded part and apply an appropriate amount of glue so that the glue fills the threaded part that needs to be sealed and proceed to assemble the parts together.

4. Use hand tools to assemble the parts until proper alignment is achieved.

5. Properly tightened fittings will seal immediately to withstand low pressure ranges. For maximum pressure resistance and solvent resistance allow product to cure for a minimum of 24 hours.

*** To remove
1. Disassemble with standard hand tools.
2. Where hand tools do not work due to large length or large diameter (over 1”) apply local heat to approximately 250°C. Disassemble while hot.

*** To clean
1. Cured product can be removed with a combination of immersion in Loctite solvent and mechanical abrasion such as a brush.

Instructions on how to preserve Loctite 577 Glue

Store product in a cool, dry place.

Store the product at a temperature of 2 – 8 0C. If this temperature range is exceeded, it will affect the quality of the product.