LOCTITE HY4090
Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other
Main features
- Cyanoacrylate/Epoxy Hybrid Adhesive
- Below 180-Second Fixture Time
- Steel/Aluminum/Polycarbonate Lap-Shear Bonding
Product Description
LOCTITE® HY 4090™ is a two-component cyanoacrylate/epoxy hybrid adhesive designed for fast fixturing and durable structural bonding of metals, plastics, and rubbers. The adhesive combines the speed of cyanoacrylate technology with the toughness and environmental resistance of epoxy systems, providing excellent gap-filling capability, moisture resistance, and temperature performance. Its thixotropic gel consistency enables reliable bonding on rough or poorly fitting surfaces while curing at room temperature.
Key Features & Benefits
- Hybrid cyanoacrylate/epoxy adhesive technology.
- Fast fixture time of less than 180 seconds.
- Excellent adhesion to metals, plastics and rubber substrates.
- Good temperature and moisture resistance.
- Room-temperature curing system.
- High gap-filling capability for rough and poorly fitting surfaces.
- Suitable for demanding environmental conditions.
Recommended Applications
- General-purpose structural bonding.
- Metal component assembly.
- Plastic and engineering polymer bonding.
- Rubber-to-metal and rubber-to-plastic bonding.
- Applications exposed to humidity and elevated temperatures.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Additional Information
As-Supplied / Before-Processing Properties
| Property | Value | Unit | Condition |
|---|---|---|---|
| Technology | Cyanoacrylate / Epoxy Hybrid | — | Two-component adhesive |
| Appearance (Part A) | Transparent to Straw-Colored Liquid | — | Component A |
| Appearance (Part B) | Off-White to Light Yellow Gel | — | Component B |
| Appearance (Mixed) | Off-White to Light Yellow Gel | — | Mixed adhesive |
| Mix Ratio | 1 : 1 | Part A : Part B | By volume |
| Specific Gravity (Part A) | 1.01 | g/cm³ | Typical |
| Specific Gravity (Part B) | 1.06 | g/cm³ | Typical |
| Viscosity (Part A) | 4,000 - 7,000 | mPa·s (cP) | 25°C |
| Viscosity (Part B) | 25,000 - 40,000 | mPa·s (cP) | 25°C |
| Fixture Time | <180 | seconds | 25°C |
After-Processing / Final-State Properties
| Property | Value | Unit | Condition / Method |
|---|---|---|---|
| Glass Transition Temperature (Tg) | 88 | °C | ISO 11359-2 |
| Shore Hardness | 65 - 69 | Shore D | ISO 868 |
| Tensile Strength | 7.1 | N/mm² | ISO 527-3 |
| Tensile Modulus | 565 | N/mm² | ISO 527-3 |
| Elongation at Break | 3.6 | % | ISO 527-3 |
| Lap Shear Strength (Steel) | 17 | N/mm² | 168 h cure @ 22°C |
| Lap Shear Strength (Stainless Steel) | 15 | N/mm² | 168 h cure @ 22°C |
| Lap Shear Strength (Aluminum Etched) | 13 | N/mm² | 168 h cure @ 22°C |
| Lap Shear Strength (Polycarbonate) | 6.9 | N/mm² | 168 h cure @ 22°C |
| Lap Shear Strength (ABS) | 5.2 | N/mm² | 168 h cure @ 22°C |
