Loctite NS 5550 – High-Temperature Gasket Sealant
Loctite NS 5550 – High-Temperature Gasket Sealant (1 Qt Brush Top Can)
Short Overview
Loctite NS 5550 is a high-temperature, thermally reactive gasket sealant designed for demanding metal-to-metal sealing applications. Supplied in a 1-quart brush-top can, this brown paste sealant provides reliable sealing performance at extreme temperatures up to 1500°F (815°C), making it ideal for industrial, automotive, and heavy-equipment maintenance environments.
Key Features
Thermally reactive gasket sealant for high-temperature service
Withstands continuous temperatures up to 1500°F (815°C)
Excellent adhesion to metal substrates
Brush-top can for easy, controlled application
Forms a durable, leak-resistant seal
Suitable for rigid flange and metal gasket applications
One-hour cure time for efficient maintenance operations
Loctite NS 5550 is a premium brown gasket sealant formulated for sealing metal components exposed to extreme heat. Its thermally reactive chemistry allows it to cure rapidly and form a strong, reliable seal that resists breakdown under high operating temperatures.
Designed primarily for metal-to-metal applications, Loctite NS 5550 is widely used in industrial assemblies, furnaces, exhaust systems, and heavy machinery where conventional sealants fail. The paste consistency enables uniform application, while the brush-top packaging ensures precise coverage on flanges, joints, and mating surfaces.
This gasket sealant is particularly effective in environments requiring resistance to heat cycling, vibration, and thermal expansion, making it a trusted choice for maintenance, repair, and overhaul (MRO) operations.
Uses of the Product
High-temperature metal gasket sealing
Industrial furnace and boiler joints
Exhaust and heat-exposed assemblies
Heavy equipment and machinery maintenance
Rigid metal flange sealing
Industrial MRO applications
Applications
Industrial Manufacturing & Maintenance
Automotive & Heavy Equipment
Power Generation & Thermal Systems
Metal Fabrication & Assembly
Plant Maintenance & Repair Operations
Technical Specifications
| Property | Value | Notes |
|---|---|---|
| Brand | Loctite | – |
| Product Number | NS 5550 | – |
| Chemical Base | Thermally Reactive | – |
| Product Form | Paste | – |
| Color | Brown | – |
| Package Size | 1 Quart | Brush-Top Can |
| Cure Time | 1 hour | – |
| Maximum Operating Temperature | 1500°F (815°C) | – |
| Minimum Operating Temperature | 59°F (15°C) | – |
| Viscosity | 1,910,000 mPa·s | – |
| Material Compatibility | Metal | – |
| Storage Temperature | 59°F to 86°F | Recommended |
| Packaging | 1 qt per inner | 12 per case |
Why Buy From Maisam Dubai
Reliable sourcing of industrial adhesives and sealants
Products suitable for high-temperature and critical applications
Supply support across UAE and GCC markets
Bulk and project-based quantity availability
Trusted by industrial maintenance and engineering sectors
FAQs
Q1. What is Loctite NS 5550 used for?
It is used for sealing metal gaskets and flanges exposed to very high temperatures.
Q2. What is the maximum temperature resistance?
Loctite NS 5550 withstands temperatures up to 1500°F (815°C).
Q3. What materials does it bond to?
It is designed specifically for metal-to-metal applications.
Q4. How is it applied?
It comes in a brush-top can for controlled, even application.
Q5. How long does it take to cure?
The typical cure time is 1 hour.
Call to Action
Looking for Loctite NS 5550 High-Temperature Gasket Sealant for industrial or maintenance use?
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