Loctite NS 5540 – High-Temperature Sealing Liquid (1 Pint Brush Top Can)

Description

Loctite NS 5540 is a high-performance, thermally activated sealing liquid designed to prevent leaks in high-temperature and high-pressure metal flange assemblies. When exposed to heat, the product cures to form a durable mechanical seal that resists thermal cycling, vibration, and aggressive industrial environments.

The liquid formulation allows easy brushing onto rigid metal flanges, fittings, and gasket surfaces, ensuring complete coverage even on complex geometries. Loctite NS 5540 is widely used in power plants, refineries, steel mills, pulp and paper facilities, and other heavy industries where steam, hydrocarbons, gases, and process fluids are present.

Unlike conventional gasket sealants, Loctite NS 5540 is engineered to maintain sealing integrity while still allowing components to be disassembled during scheduled maintenance, extending equipment life and reducing repair costs.

Uses of the Product

• High-temperature metal flange sealing

• Steam, gas, and hydrocarbon sealing

• Gasket dressing to extend gasket life

• Leak prevention in heat-exposed joints

• Industrial MRO and plant maintenance

Applications

• Power Generation Facilities

• Oil & Gas Refineries

• Steel Mills & Foundries

• Pulp & Paper Plants

• Industrial Boilers & Heat Exchangers

• Pumps, Turbines, and Exhaust Systems

Technical Specifications

Why Buy From Maisam Dubai

• Reliable sourcing of industrial sealants and adhesives

• Products suitable for extreme temperature and pressure applications

• Support for industrial, energy, and maintenance sectors

• Bulk and project-based supply capability

• Trusted supplier across GCC markets

FAQs

Q1. What is Loctite NS 5540 used for?
It is used for sealing metal flanges and fittings exposed to high temperatures and pressures.

Q2. What is the maximum temperature resistance?
Loctite NS 5540 withstands temperatures up to 1500°F (815°C).

Q3. How much pressure can it handle?
It can seal applications up to 2900 psi (200 bar).

Q4. What materials does it bond to?
It is designed specifically for metal-to-metal applications.

Q5. Can assemblies be disassembled later?
Yes, it allows for disassembly during future maintenance.

Q6. How long does it take to cure?
Typical cure time is 1 hour.

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