LOCTITE® 5188

Features and Benefits

This highly flexible, form-in-place, anaerobic-curing gasketing sealant is designed for use on rigid metal flanged connections, particularly where there’s minor oil contamination of the flange surfaces. Works on aluminum substrates.
If you need a gasketing product but your flange surfaces have minor oil contamination, choose LOCTITE® 5188. This highly flexible, 1-part, anaerobic form-in-place sealant is designed for use on rigid metal flanged connections like gearboxes and engine casings, forms an instant seal, has excellent chemical resistance, and can be dispensed by hand or robotically with the appropriate LOCTITE® systems. Perfect for use on aluminum substrates where very good adhesion is achieved.
  • Seals rigid metal flanges
  • Excellent chemical resistance
  • Excellent in demanding applications
  • Highly flexible even after high temperature exposure
  • Ideal for aluminum flanges
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Technical Information

Applications Gasketing
Chemical basis / base Dimethacrylate Ester
Color Red
Fixture time, Steel 25.0 min.
Gap fill, Unprimed 0.25 mm
Key characteristics For machined, rigid flanges
Number of components 1 Part
Operating temperature -55.0 - 150.0 °C (-65.0 - 300.0 °F )
Recommended for use with Metal: Aluminum, Metal: Steel
Viscosity, 20 RPM 21000.0 mPa·s (cP)