Henkel Adhesive Technologies

Henkel Adhesive Technologies

Structural adhesives


Universal structural bonder for all your design and assembly challenges

A high-viscosity, 2-part hybrid, universal structural bonder with excellent humidity and vibration resistance.

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® HY 4090 is a fast and powerful, high-viscosity, off-white-to-light-yellow universal bonder. In the world of structural bonding, it is unique, combining strength and speed to provide powerful, long-lasting bonds. It has a fixture time of 90-180 seconds and is suitable for gaps up to 5mm. Resistant to vibration, shock and impact. Works with a wide range of substrates. For best results, use with LOCTITE® 50 ml Adhesive Mixing Nozzle, LOCTITE® 400 ml Adhesive Mixing Nozzle, LOCTITE® 96001, or LOCTITE® 983439.

Application method:

Dispense Gun


Bonding Dissimilar Materials,Bonding Plastic,Bonding Rubber,Construction,Direct Bonding,Edge Bonding,Exterior Repairs,Interior Repairs,Structural Bonding

Cure type:

Room Temperature (Ambient) Cure,Two Component Mix

FEA (finite element analysis):

Finite Strain,Viscoelastic

Fixture time:

< 180.0 sec.

Gap fill:

2.0 mm

Hardener: Color:

Off White

Hardener: Viscosity, cone & plate, @ 25.0 °C:

25000.0 mPa·s (cP) - 40000.0 mPa·s (cP)

Mix ratio, by weight:

1 : 1

Mixed: Color:

Off White

Mixed: Key characteristics:

Cure Speed: Fast Cure,Gap Filling,Humidity Resistant,Impact Resistant,Moisture Resistant,UV Resistant,Vibration Resistant,Viscosity: High Viscosity

Mixed: Operating temperature:

-40.0 °C - 300.0 °C (-40.0 °F - 284.0 °F)

Number of components:

2 Part

Physical form:


Recommended for use with:

Composite,Composite: Advanced Composites,Dry Surface,Elastomer: Highly Filled Elastomer,Epoxy,Fiberboard,Gel Coat,Laminate,Metal,Non-Gel Coat,Painted Surface,Phenolic,Plastic,Rubber,Thermoplastic,Thermoset,Urethane: Cast Urethane,Vinyl,Wood

Resin: Color:


Resin: Viscosity, cone & plate, @ 25.0 °C:

4000.0 mPa·s (cP) - 7000.0 mPa·s (cP)

Shear strength, Steel (grit blasted):

17.0 N/mm² (2420.0 psi)

Please contact us for ordering options

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