LOCTITE E-04
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
- Two-Component Adhesive System
- Thixotropic Application Control
- Low-Shrinkage Epoxy Bonding
Product Description
LOCTITE® E-04 is a two-component toughened epoxy adhesive designed for structural bonding of metals, magnets, glass and engineering plastics. The adhesive cures at room temperature to form a durable, impact-resistant bond with excellent electrical insulation properties, low shrinkage and good chemical resistance. Its thixotropic consistency and gap-filling capability make it suitable for demanding industrial assembly and repair applications.
Key Features & Benefits
- Two-component toughened epoxy technology.
- Thixotropic, non-flowing adhesive consistency.
- Low shrinkage during cure.
- Excellent impact resistance.
- Outstanding electrical insulation properties.
- Good chemical resistance after cure.
- Structural bonding of metals, magnets, glass and plastics.
Recommended Applications
- Structural metal bonding.
- Magnet assembly and ferrite bonding.
- Glass bonding applications.
- Plastic component assembly.
- General industrial repair and maintenance.
TDS, SDS & Technical Documents
Technical Specifications
No specifications available.
Additional Information
As-Supplied / Before-Processing Properties
| Property | Value | Unit | Condition |
|---|---|---|---|
| Technology | Toughened Epoxy | — | Two-component adhesive |
| Appearance (Resin) | White | — | Paste |
| Appearance (Hardener) | Black | — | Paste |
| Appearance (Mixed) | Gray | — | Mixed adhesive |
| Mixed Viscosity | 77,500 | cP | 25°C |
| Specific Gravity | 1.34 | — | Mixed, 25°C |
| Mix Ratio | 1 : 1 | Resin : Hardener | By weight or volume |
| Work Life | 45 | minutes | 25°C |
| Maximum Gap Fill | 5.0 | mm | Typical value |
After-Processing / Final-State Properties
| Property | Value | Unit | Condition / Method |
|---|---|---|---|
| Full Cure Time | 24 | hours | 25°C |
| Hardness | 60 | Shore D | 25°C |
| Lap Shear Strength (Steel) | 17 - 21 | N/mm² | ASTM D1002 |
| Lap Shear Strength (Aluminum) | 17 - 19 | N/mm² | ASTM D1002 |
| Lap Shear Strength (Stainless Steel) | 17 - 23 | N/mm² | ASTM D1002 |
| Operating Temperature Range | -55 to +70 | °C | Continuous service |
| Dielectric Strength | 120 - 180 | kV/cm | Typical cured material |
| Dielectric Constant | 3.5 - 6.0 | — | Typical cured material |
| Volume Resistivity | >1 × 10¹⁴ | Ω·cm | Typical cured material |





















