Loctite Adhesive Solutions. Superior Performance.

Close-up macro industrial photograph of an automated dispensing nozzle applying red anaerobic flange sealant along the precision-machined mating face of a cast iron gearbox housing, neutral workshop lighting.
Close-up macro industrial photograph of an automated dispensing nozzle applying red anaerobic flange sealant along the precision-machined mating face of a cast iron gearbox housing, neutral workshop lighting.
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Industrial Anaerobic Solutions

Loctite Flange Sealants

Form durable, high-pressure seals between rigid metal flanges and machined assemblies. Engineered to prevent fluid leakage and withstand thermal expansion in severe operational environments.

Engineered Performance

Total Metal-to-Metal Contact

Eliminate gasket compression set, bolt relaxation, and microscopic gap leakage across high-vibration equipment.

Leak-Free Containment

Zero Gasket Creep

Micro-Gap Conformity

Cures anaerobically in the absence of air to create an impervious solid barrier resistant to fuel, oil, coolant, and hydraulic fluids.

Replaces traditional pre-cut gaskets with unitized metal-to-metal contact, preventing dynamic bolt loosening and flange deflection.

Flows seamlessly into microscopic surface imperfections up to 0.5 mm, ensuring complete surface contact and uniform stress transmission.

Industrial high-angle shot of a centrifugal pump volute casing split in two halves, showing precision machined sealing faces on a clean maintenance bench.
Industrial high-angle shot of a centrifugal pump volute casing split in two halves, showing precision machined sealing faces on a clean maintenance bench.
Eye-level industrial view of an assembled cast-steel industrial reduction gearbox on a factory assembly line with crisp workshop lighting.
Eye-level industrial view of an assembled cast-steel industrial reduction gearbox on a factory assembly line with crisp workshop lighting.
Field Applications

Built for Severe Duty

Fluid Systems

Pumps and Compressors

Seals split-case pump housings and compressor casings against continuous high internal pressure and cycling thermal stress.

Drivetrain Components

Gearboxes and Transmissions

Maintains structural integrity across heavy transmission covers and planetary gearboxes, preventing oil misting and external contaminant ingress.

Specification Guide

Selecting the Right Formulation

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Flange Rigidity

Gap Dimension

Operating Exposure

Determine whether the assembly comprises rigid cast iron and steel housings requiring high-strength anaerobic cures, or semi-rigid aluminum covers needing flexible thixotropic gels.

Assess maximum machine tolerances and surface finish. Select low-viscosity formulas for tight machined joints or paste consistency for gaps up to 0.50 mm.

Verify continuous operating temperatures from -55°C to +200°C alongside exposure to harsh petroleum hydrocarbons, synthetic lubricants, and glycol coolants.

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Need Technical Recommendations?

Our engineering specialists assist with sealant selection, gap analysis, and assembly compatibility for your industrial maintenance and OEM requirements.