LOCTITE EA 445
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
- Pre-Measured Two-Component Mixer Cup
- 2 to 3-Minute Gel Time
- Drillable, Tappable, Sandable Cured Epoxy
Product Description
LOCTITE® EA 445 is a two-component, room-temperature-curing epoxy adhesive supplied in a pre-measured mixer cup. It forms permanent, high-strength bonds to metals, ceramics, concrete, wood, glass, and most plastics, while also supporting repair, filling, and sealing of holes, cracks, and worn surfaces. The mixed adhesive is gray and has a gel time of 2 to 3 minutes at 25 °C. After cure, it can be drilled, tapped, sanded, machined, or painted, allowing bonded or repaired surfaces to undergo further finishing. Typical applications include production, maintenance, and prototype bonding. The product is not recommended for polyethylene or polypropylene.
Key features
- Pre-measured two-component format: The resin and hardener are packaged in a mixer cup to support consistent proportioning and straightforward manual mixing.
- Fast room-temperature gel: The mixed adhesive has a gel time of 2 to 3 minutes at 25 °C for rapid bonding and repair work.
- Machinable after cure: The cured epoxy may be drilled, tapped, sanded, machined, or painted for subsequent finishing.
Applications / Suitable for
- Production, maintenance, and prototype bonding
- Bonding metals, ceramics, concrete, wood, glass, and most plastics
- Repairing, filling, and sealing holes, cracks, and worn surfaces
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Electrical Properties
Additional Information
As-supplied / before-processing properties
Typical component and curing properties for LOCTITE® EA 445 before final cure.
| Property | Value | Method / condition |
|---|---|---|
| Technology | Epoxy | Two-component system |
| Resin appearance | Off-white to pale gray paste | As supplied |
| Hardener appearance | Black paste | As supplied |
| Mixed appearance | Gray | Uniformly mixed |
| Resin specific gravity | 1.68 g/cm³ | Typical |
| Hardener specific gravity | 1.4 g/cm³ | Typical |
| Gel time | 2 to 3 minutes | At 25 °C |
After-processing / final-state properties
Typical properties of LOCTITE® EA 445 cured at 25 °C, except where otherwise noted.
| Property | Value | Method / condition |
|---|---|---|
| Shore hardness | 87 Shore D | ISO 868 |
| Flexural strength | 55 N/mm² (7,960 psi) | ASTM D790 |
| Compressive strength | 91 N/mm² (13,260 psi) | ISO 604 |
| Tensile strength | 26.3 N/mm² (3,815 psi) | ISO 527-2 |
| Elongation | 0.53% | ISO 527-2 |
| Thermal conductivity | 0.492 W/(m·K) | ASTM F433 |
| Glass transition temperature | 51 °C | ASTM E1640 |
| Coefficient of thermal expansion below Tg | 39 × 10−6 K−1 | ISO 11359-2 |
| Coefficient of thermal expansion above Tg | 135 × 10−6 K−1 | ISO 11359-2 |
| Volume resistivity | 0.11 × 1015 ohm-cm | IEC 60093 |
| Surface resistivity | 0.1 × 1015 ohms | IEC 60093 |
| Lap shear strength | 13.5 N/mm² (1,955 psi) | ISO 4587; grit-blasted mild steel |
