Next Generation – Our Best in Class Just Got Better

Improved performance with new formulation LOCTITE 518 and LOCTITE 577


LOCTITE 518 & LOCTITE 577

Henkel today maintains the broadest line of anaerobic products that help increase reliability and prevent unscheduled, costly downtime and equipment failure. To serve the changing demands of markets and customers Henkel has upgraded the gasketing and thread sealing range with new innovative formulations for LOCTITE 518 and
LOCTITE 577.

LOCTITE 518: General Purpose Gasketing Product

How to apply LOCTITE 518

Semi-flexible, medium-strength gasketing product designed for use on rigid iron, aluminum, and steel flanged mating surfaces. Fills gaps up to 0.25 mm and forms a flexible, chemical-resistant seal that will not tear or decay. Parts disassemble easily, even after extended service.

New Product Benefits Advantages
Higher Strength on Contaminated Surfaces Ensures more robust cure under real world production and maintenance conditions
Better Flexibility and Improved Adhesion Supports thinner, light-weight flange designs
Enhanced Sealing Capability Allows for harsher operating conditions of customer assemblies
Improved Gap Cure Seals flanges with reduced machining tolerances
High Performance on Passive Metals Without an Activator Simplifies the application process and supports trend towards light-weight metals


LOCTITE 577: Medium-Strength Thread Sealant

How to apply LOCTITE 577

A medium-strength, general purpose thread sealant for taper/parallel, taper/taper and parallel/parallel threads. Great for overhead applications and fast application at low temperatures. Excellent chemical and thermal resistance, its gel-like form results in less migration of product after application.

More information

New Product Benefits Advantages
Higher Strength on Contaminated Surfaces Ensures more robust cure under real world production and maintenance conditions
Improved Thermal Performance Enables higher operating temperatures of customer assemblies while maintaining good sealing performance
High Performance on Passive Metals Without an Activator Simplifies the application process and supports the use of corrosion resistant pipes and fittings


The performance improvements have been achieved while maintaining the core properties of both products.

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