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LOCTITE® HY 4090 Universal Structural Bonder

Features and Benefits

LOCTITE HY 4090 is an off-white to light yellow, high viscosity, 2-part hybrid, universal structural bonder with high humidity and vibration resistance.
LOCTITE® HY 4090 is a high viscosity, off-white to light yellow gel. It opens completely new application areas in structural bonding – for the very first time combining instant adhesive properties with those for epoxies to give more striking benefits. Fixture time of 90 - 180 seconds and suitable for gaps up to 5 mm. Resistant to vibration, shock loads and impacts with the ability to bond dissimilar substrates. Best application results are achieved with LOCTITE® 50 ml Adhesive Mixing Nozzle (item 1826921), LOCTITE® 400 ml Adhesive Mixing Nozzle (item 1573135), LOCTITE® 96001 (item 267452) or LOCTITE® 983439 (item 218311).
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Documents and Downloads

Safety Data Sheets and RoHs
LOCTITE® HY 4090, 400 g Dual cartridge 2060035 en-US
IDH: 2060035
EAN: 079340009738

Size Case: 400 g Dual cartridge

Quantity: 10.0/case

LOCTITE® HY 4090, 50 g Dual cartridge 2123350 en-US
IDH: 2123350
EAN: 079340011229

Size Case: 50 g Dual cartridge

Quantity: 10.0/case

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Technical Information

Application method Dispense Gun
Applications 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
Mix ratio, by weight 1 : 1
Number of components 2 Part
Physical form Liquid
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
Shear strength, Steel (grit blasted) 17.0 N/mm² (2420.0 psi )
Color, Mixed Off White
Key characteristics, Mixed Cure Speed: Fast Cure, Gap Filling, Humidity Resistant, Impact Resistant, Moisture Resistant, UV Resistant, Vibration Resistant, Viscosity: High Viscosity
Operating temperature, Mixed -40.0 - 300.0 °C (-40.0 - 284.0 °F )
Color, Resin Clear
Viscosity, cone & plate, Resin @ 25.0 °C 4000.0 - 7000.0 mPa·s (cP)
Color, Hardener Off White
Viscosity, cone & plate, Hardener @ 25.0 °C 25000.0 - 40000.0 mPa·s (cP)

How to

Step by Step Guide

1. Preparation - Cleaning

It is recommended to use the correct LOCTITE® cleaner for the surface to be bonded (such as LOCTITE® SF 7070™) to degrease and clean surfaces prior to applying the adhesive.

2. Preparation of Cartridge

Place cartridge in dispense gun. Remove cap from cartridge. Dispense a small amount so that material is coming out of both sides of cartridge. Attach mix nozzle and dispense a bead at least half of the length of the nozzle. The material is ready to use.

3. Application

Apply a bead of material to one of the surfaces to be bonded. Join the parts and fixture in a way to prevent movement of the part until handling strength is obtained.

Where to Buy

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LOCTITE HY 4090 is an off-white to light yellow, high viscosity, 2-part hybrid, universal structural bonder with high humidity and vibration resistance.

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