Henkel Adhesive Technologies

Henkel Adhesive Technologies

Light curing adhesives


Medium viscosity adhesive for transparent bonding

This is a high transparency, medium viscosity light-cure acrylic-based adhesive that provides high, on-demand curing speed.

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

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LOCTITE® AA 3491 is a clear, low yellowing, light-cured, universal, acrylic-based instant adhesive, suited to plastics and well suited to ceramics, glass and metals. It has a high, on-demand, curing speed.



Cure type:

UV Cure

Depth of cure:

4.0 mm

Fixture time:

12.0 sec.

Key characteristics:

Wavelength for Cure: UV

Number of components:

1 Part

Shore hardness, D:


Specific gravity, @ 25.0 °C:


Tack free time:

15.0 sec.

Viscosity, Brookfield, @ 25.0 °C:

750.0 mPa·s (cP) - 1500.0 mPa·s (cP)

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