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Henkel Adhesive Technologies

Henkel Adhesive Technologies

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Gasketing sealants


Larger gap filling gasketing product for close-fitting rigid flanges

This anaerobic-curing flange sealant for rigid machined metal flanges fills gaps up to 0.25mm (0.01") and typically provides a 30-minute fixture time.

All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the US, Germany, and elsewhere.

Part no. (SKU/IDH) 135479
LOCTITE® 515, 50 ml Tube

Size Please make your selection 50 ml

Packaging type Please make your selection Tube



LOCTITE® 515 is a form-in-place anaerobic-curing flange sealant that cures when confined in the absence of air between close fitting metal surfaces. It seals close fitting joints between rigid metal faces and flanges and will flex with minor flange movements. It provides resistance to low pressures immediately after assembly of flanges, and is typically used as a form-in-place gasket for pumps, thermostats, compressors, transmission housing,s and axle covers. The product is fluorescent under UV light, allowing visual inspection of the bead.

Product category:

Gasketing sealants


Application method:

Dispense system,Manual


Rigid assembly gasketing,Sealing

Chemical basis / base:




Cure type:

Anaerobic cure

Fixture time:

30.0 min.

Gap fill:

0.25 mm

Key characteristics:

Fluorescent,For machined, rigid flanges,Strength: medium strength,Thixotropic

Lab shear strength:

6.0 N/mm²

Number of components:

1 part

Physical form:


Recommended for use with:

Metal: aluminum,Metal: steel

Storage temperature:

8.0 °C - 21.0 °C

Viscosity, Brookfield - HBT, @ 25.0 °C:

700000.0 mPa·s (cP) - 1700000.0 mPa·s (cP)

Viscosity, Brookfield - HBT, @ 25.0 °C:

150000.0 mPa·s (cP) - 375000.0 mPa·s (cP)

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