Loctite 574 – Flange sealant

Loctite 574 is a high-performance anaerobic flange sealant specially formulated for sealing rigid metal flanges and close-fitting machined joints. It cures in the absence of air when confined between metal surfaces, forming a durable, flexible gasket that effectively prevents leaks of oils, fuels, coolants, water, and other industrial fluids. The sealant is particularly suitable for rigid flange assemblies where reliable sealing and excellent chemical resistance are required.

Loctite 574 fills surface imperfections and machining marks, eliminating the need for conventional pre-cut gaskets. It remains flexible after curing, allowing it to withstand vibration, pressure fluctuations, and thermal expansion without cracking or shrinking. The product offers excellent adhesion to aluminum, cast iron, steel, and other metal flanges, making it ideal for demanding automotive and industrial sealing applications.

Its controlled curing characteristics provide sufficient assembly time while ensuring dependable sealing performance. Once cured, Loctite 574 delivers outstanding resistance to oils, fuels, hydraulic fluids, coolants, and many industrial chemicals, helping improve equipment reliability and reduce maintenance requirements.

Key Features

• Anaerobic flange sealant for rigid metal flanges
• Forms a durable, flexible, leak-proof gasket
• Excellent resistance to oils, fuels, coolants, and industrial chemicals
• Fills gaps and surface imperfections
• Eliminates the need for conventional cut gaskets
• Resists vibration, pressure, and thermal cycling
• Protects against corrosion and fluid leakage
• Suitable for aluminum, cast iron, steel, and other rigid metal flanges

Typical Applications

• Engine and transmission housings
• Gearboxes and differential housings
• Pumps and compressors
• Hydraulic equipment
• Industrial machinery and process equipment
• Valve covers and flange assemblies
• Automotive and heavy equipment maintenance

Benefits

• Prevents fluid leaks and contamination
• Improves equipment reliability and operational efficiency
• Reduces gasket inventory and assembly time
• Minimizes maintenance costs and unplanned downtime
• Provides long-lasting sealing performance in demanding industrial environments

Loctite 574 is a trusted flange sealing solution for manufacturers and maintenance professionals who require reliable sealing of rigid metal flanges, excellent chemical resistance, and durable performance in automotive, industrial, and heavy-duty applications.