LOCTITE® HY 4090 Universal Structural Bonder
Known as LOCTITE 4090
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).
- Vibration, shock loads and impact resistance
- Temperature resistance up to 150°C
- Gap filling up to 5mm
- High moisture resistance
- UV resistant allowing outdoor applications
- Fixture time of 90-180 seconds
- High shear strength of (17 N/mm²)
- Suitable for Magnet Bonding (SPM & IPM)
Documents and Downloads
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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 ) |
Mixed | |
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 ) |
Resin | |
Color, Resin | Clear |
Viscosity, cone & plate, Resin @ 25.0 °C | 4000.0 - 7000.0 mPa·s (cP) |
Hardener | |
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 7063 or 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.