LOCTITE® 5203 is a high-performance anaerobic adhesive for metal surfaces, specifically engineered for sealing flanges in close-fitting, rigid assemblies. It cures rapidly between metal flanges, providing a leak-proof seal resistant to high pressure, temperature, and chemical exposure.
Colour: Red
Fixture time: approximately 15 minutes on steel
Temperature range: -55°C to +150°C
Viscosity: 15.000-25.000 mPa.s
Gap fill: Up to 0.2mm
Shear strenght: 8-12 N/mm²
Shelf Life: 12 months
Primary Chemistry:
Methacrylate Ester
LOCTITE® 5203 is an advanced flange sealant and adhesive formulated for metal-to-metal sealing applications. It cures in anaerobic consitions, when air is absent and metal surfaces are present, forming a robust seal that prevents leakage in flange connections. This adhesive is ideal for applications where surface contamination, such as oil residues, might be present. The product remains effective even on passive metals like stainless steel or aluminum, making it versatile across various industries.
LOCTITE® 5203 offers exceptional pressure resistance, temperature tolerance, and chemical resistance, making it suitable for high-performance sealing needs in sectors such as automotive, aerospace, and heavy industrial machinery. It eliminates the need for traditional gaskets, reducing assembly time and costs while offering a reliable long-term solution.
Colour: Red
Fixture time: approximately 15 minutes on steel
Temperature range: -55°C to +150°C
Viscosity: 15.000-25.000 mPa.s
Gap fill: Up to 0.2mm
Shear strenght: 8-12 N/mm²
Shelf Life: 12 months
Primary Chemistry:
Methacrylate Ester
Fluid and gas leakage
Surface Imperfections
Time consuming gasket replacement
Tolerance to contaminants
Engine block assembly
Transmission Systems
Hydraulic Pumps
Gearbox sealing
Water pumps
Compressed air systems
Pneumatic systems
Aerospace Components
Industrial compressors
Heavy Machinery
Power generation
Marine engines
Chemical processing equipment
Food and beverage equipment
Electric motor housing
We’ve detected that you are located in a different region than the region selected on the website. Would you like to change your region?
Current Region: English - Europe, Middle East, Africa
