LOCTITE 404
Harmonization Code : 3506.10.00.00 | 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
Main features
- Optically Clear Bondline
- Fast Adhesive Cure
- Low-Viscosity Adhesive Application
Product Description
LOCTITE® 404 is a one-component, low-viscosity ethyl cyanoacrylate adhesive engineered for very rapid bonding of plastics and elastomeric materials. The transparent adhesive cures quickly upon exposure to atmospheric moisture and develops handling strength within seconds on many substrates. Its fast fixture speed, excellent adhesion to plastics and rubber, and easy one-part application make it ideal for high-speed industrial assembly and maintenance operations. LOCTITE 404 is also qualified to Commercial Item Description A-A-3097, supporting its use in applications requiring recognized performance standards.
- One-component ethyl cyanoacrylate adhesive requiring no mixing.
- Very fast curing through ambient humidity exposure.
- Low viscosity for rapid wetting and penetration of bonding surfaces.
- Excellent adhesion to plastics and elastomeric materials.
- High production efficiency due to short fixture times.
- Transparent bond line appearance.
- Qualified to Commercial Item Description A‑A‑3097.
Recommended Applications
- Bonding plastics and rubber components.
- High-speed assembly operations.
- General industrial bonding and repair.
- Plastic-to-plastic and plastic-to-elastomer assemblies.
- Applications requiring very fast fixture speed.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Additional Information
As-Supplied / Before-Processing Properties
| Property | Value | Unit | Condition |
|---|---|---|---|
| Technology | Cyanoacrylate | — | Ethyl cyanoacrylate adhesive |
| Chemical Type | Ethyl Cyanoacrylate | — | Instant adhesive |
| Appearance | Transparent, Colorless to Straw Colored Liquid | — | Uncured |
| Components | One Part | — | No mixing required |
| Specific Gravity | 1.09 | — | 25°C |
| Viscosity | 70 - 110 | mPa·s (cP) | Brookfield LVF, Spindle 1, 30 rpm, 25°C |
| Key Substrates | Plastics and Rubbers | — | Primary bonding materials |
| Cure Type | Humidity Cure | — | Atmospheric moisture activated |
After-Processing / Final-State Properties
| Property | Value | Unit | Condition / Method |
|---|---|---|---|
| Glass Transition Temperature (Tg) | 120 | °C | ASTM E228 |
| Coefficient of Thermal Expansion | 80 × 10⁻⁶ | K⁻¹ | ISO 11359-2 |
| Thermal Conductivity | 0.1 | W/m·K | ISO 8302 |
| Volume Resistivity | 10 × 10¹⁵ | Ω·cm | IEC 60093 |
| Dielectric Breakdown Strength | 25 | kV/mm | IEC 60243-1 |
| Lap Shear Strength (Steel, Grit Blasted) | 18 - 26 | N/mm² | ISO 4587, 24 h @ 22°C |
| Lap Shear Strength (Aluminum) | 11 - 19 | N/mm² | ISO 4587, Etched Aluminum |
| Lap Shear Strength (ABS) | >6 | N/mm² | ISO 4587, 24 h @ 22°C |
| Lap Shear Strength (Neoprene) | >10 | N/mm² | ISO 4587, 24 h @ 22°C |
| Tensile Strength (Steel) | ≥5.2 | N/mm² | ISO 6922, 2 min @ 22°C |
