LOCTITE® 515 is a high performance anaerobic flange sealant designed for bonding rigid metal flanges. It cusres in the absence of air and offers superior sealing performance in low-pressure applications, preventing leaks and ensuring reliability.
LOCTITE® 515 is specially formulated anaerobic sealant, ideal for metal-to-metal bonding in rigid flange assemblies. It is desighned to cure when confined between two metal surfaces in the absence of air, forming a strong, flexible, and durable seal. This product is highly resistant to common industrial fluids like oils, water, and coolants, making it a versatile solution accross multiple industries. Its gap-filling capabilities and ability to withstand low pressure before full cure make it a preferred choice in maintenance and assembly applications.
Colour: Purple
Viscosity: 20.000-50.000 mPa.s
Maximum gap fill: 0.25mm
Cure Speed: Fisture time is 15 minutes, full cure in 24 hours
Temperature range: -55°C to +150°C
Pressure resistance: Seals against low pressure immediately upon assembly, withstanding higher pressures after full cure.
Shelf life: 24 months (unopened)
Primary Chemistry: Methacrylate-Based Adhesive
Anaerobic cure
Gap Filling
High fluid resistance
Low-pressure sealing
No shimming required
Temperature resistance
Easy Disassembly
Leakage in rigid flanges
Warped or uneven flange Surfaces
Time-consuming gasket curring
Weak sealing under low pressure
Exposure to harsh fluids
Automotive engines: Sealing engine blocks, water pumps and oil pans in automotive engines.
Hydraulic systems: Used in hydraulic systems to seal flanges and prevent fluid leaks in high pressure environments.
Gearboxes: Sealing gearbox covers and flanges to prevent lubricant leakage.
Pumps and compressors: Used in pump housing assemblies and compressors to create a leak-proof seal in industrial equipment.
Industrial equipment: Prevents leakage in heavy-duty machinery like compressors and turbines by sealing metal flange joints.
Water treatment plants: Seal flanges in water and waste water treatment equipment where fluid resistance is essential.
HVAC: Seal flange connections in HVAC systems, ensuring leak-proof performance under thermal and mechanical stress.
Agricultural machinery: Protects mechanical components of tractors and other agricultural machines by sdealing fluid systems and preventing leaks.
Marine equipment: Used in marine engines and pumps to prevent leaks in harsh marine environments.
Chemical processing plants: Seal equipment used in chemical processing plants.
Power Generation: Used in turbines and other generation equipment for leak-proof operation in extreme conditions.
Oil and gas industry: Seals metal flanges in pipelines and other oil and gas equipment.
Food and beverage processing: Suitable for sealing flanges in pipelines and other oil and gas equipment.
Pharmaceutical manufacturing: Seals metal components in pharmaceutical production machinery.
Aerospace components: Used in aerospace engines and mechanical systems where metal-to-metal flange are required.
Railroad industry: Provides reliable sealing in railcars and train systems, preventing leakage in fuel and lubrication systems.
Mining equipment: Seal flanges in heavy mining machinery and vehicles, offering protection from exposure to dust, dirt and industrial fluids.
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