LOCTITE® HY 4090 GY Universal Structural Bonder
Features and Benefits
A general purpose, 2-part, hybrid universal adhesive with very fast fixture at room temperature.
When you need a fast and powerful general purpose bonder, try LOCTITE® HY 4090 GY. This grey, 2-part, thixotropic, cyanoacrylate/epoxy hybrid universal structural bonder works on a variety of substrates, including metals and most plastics and rubbers. It has excellent temperature and moisture resistance and is suitable for applications where good gap-filling properties are needed, especially on rough and poorly fitting surfaces. For best results, use with LOCTITE® 50 ml Adhesive Mixing Nozzle, LOCTITE® 400 ml Adhesive Mixing Nozzle or LOCTITE® 50ml hand gun.
- Very fast fixture at room temperature
- Bonds a wide variety of substrates
- Excellent temperature and moisture resistance
- Suitable for gap filling on rough and poorly fitting surfaces
- Viscoelastic & Finite Strain FEA data cards available
Documents and Downloads
Looking for a TDS or SDS in another language?
Technical Information
| Applications | Structural bonding |
| Number of components | 2 part |
| Mixed | |
| Color, Mixed | Gray |
| Fixture time, Mixed | <180.0 sec. |
| Gap fill, Mixed | 2.0 mm |
| Key characteristics, Mixed | Environmental resistance, Humidity resistant |
| Lab shear strength, Mild Steel (grit blasted) Mixed | 17.0 N/mm² (2420.0 psi ) |
| Mix ratio, by weight, Mixed | 1:1 |
| Operating temperature, Mixed | -40.0 - 150.0 °C (-40.0 - 300.0 °F ) |
| Resin | |
| Viscosity, cone & plate, Resin | 4000.0 - 7000.0 mPa·s (cP) |
| Hardener | |
| Viscosity, cone & plate, Hardener | 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 7063/7070) 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.
Frequently Asked Questions
What is a "hybrid" adhesive?
Is it important to bump and purge the cartridge before using?
What pack sizes is LOCTITE HY 4090 GY available in? What comes in the package?
Is refrigerated storage required for LOCTITE HY 4090 GY?
LOCTITE® HY 4090 GY is similar to
LOCTITE® HY 4090 GY
A general purpose, 2-part, hybrid universal adhesive with very fast fixture at room temperature.