Loctite 573 Gasket Sealant 250ml

Loctite 573 Flange Sealant 250ml is a medium viscosity, green anaerobic flange sealant engineered for maximum efficacy in gasketing and sealing. This industrial-grade adhesive permanently seals close-fitting joints between rigid metal faces and flanges, preventing costly fluid leaks caused by structural movement or vibration. Whether you are securing transmission casings or motor housings, this premium form-in-place gasket provides a robust, leak-proof seal on all rigid metal joints—including aluminum and steel substrates.

Why Choose Loctite 573 Extended Assembly Time?

• Ideal for Long Assemblies: Slow-curing properties make it the perfect product for part assembly jobs extending over several hours.
• Reduced Liquid Migration: The thixotropic nature of the formula minimizes the running or movement of the product after it is applied to the part.
• Excellent Gap Filling: Specifically designed to accommodate and seal close-fitting flanged parts with gaps up to 0.25 mm.
• Form-in-Place Reliability: Replaces traditional pre-cut gaskets on rigid flanged connections to ensure continuous surface-to-surface contact.
• Immediate Low-Pressure Testing: Low pressures (<0.5 MPa) may be used immediately after assembly to confirm a complete seal before full cure.

Technical Specifications

• Product Type: Anaerobic Gasket & Flange Sealant
• Strength: Medium (Tensile Shear Strength: 1.3 N/mm²)
• Color: Green
• Container Size: 250ml
• Certifications: Engineered to standard industrial gasketing specifications

Simple Application Instructions

1. Clean: For optimal results, clean all internal and external surfaces with a Loctite cleaning solvent and let dry to ensure they are free from grease and oils.
2. Apply: Apply manually as a continuous bead or by screen printing to one surface of the flanges.
3. Assemble: Assemble and tighten flanges as soon as possible after application to avoid shimming. The formula will begin curing once confined in the absence of air between the close-fitting metal surfaces.

Frequently Asked Questions (FAQ)

What is Loctite 573 used for?

Loctite 573 is a medium strength anaerobic flange sealant designed for gasketing and sealing rigid connections. It is specifically formulated to prevent industrial casings and flanged joints from leaking fluid due to mating tolerance gaps or joint movement.

Can Loctite 573 be disassembled?

Yes. With a standard tensile shear strength of 1.3 N/mm², components sealed with Loctite 573 can be separated and disassembled using normal industrial hand tools and scraping methods during maintenance.

Does Loctite 573 work on aluminum?

Yes. Loctite 573 offers robust performance across major rigid metal structures. It is highly effective on both aluminum components as well as steel surfaces.

Is Loctite 573 safe for standard workshop storage?

Loctite 573 is stable and safe when stored properly. This means it maintains its properties best when kept in its unopened container in a dry location at an optimal temperature range between 8°C and 21°C.