• Item Name: Bectron® EP 5504
• Manufacturer: ELANTAS Beck GmbH
• Technologies: Two-component epoxy casting system (with Hardener Bectron® EH 5909)
• Color: Light beige (resin), Colorless-transparent (hardener)
• Cure Type: Cold curing at room temperature (optional post-curing at 100 °C)
• Package Size: Resin: 1 kg, 5 kg buckets; 30 kg hoop | Hardener: 1 kg can
• Shelf Life: 9 months
Bectron® EP 5504 is a two-component cold-curing epoxy casting compound used with Hardener Bectron® EH 5909. It cures into a hard, thermally conductive, self-extinguishing (UL 94 V-0) moulding material. It offers high mechanical strength, good dielectric properties, adhesion to various substrates, and thermal class F (155 °C) performance. Post-curing at elevated temperature is optional to further enhance mechanical and thermal properties.
Encapsulation and casting of electrical and electronic components with high thermal loads.
Ideal for magnet coils, brake coils, lifting magnets, and similar devices.
Suitable for situations requiring high thermal conductivity, flame retardancy, and reliable mechanical strength.
| Property | EP 5504 Resin | EH 5909 Hardener | Unit |
|---|---|---|---|
| Colour | Light beige | Colourless-transparent | – |
| Density (DIN EN ISO 2811-1, 20 °C) | 1.74 ± 0.05 | 0.92 ± 0.03 | g/cm³ |
| Viscosity (DIN 53019, 25 °C) | 8,000 ± 2,000 | 11 ± 3 | mPa·s |
| Shelf life | ≥ 9 months | ≥ 9 months | – |
| Property | Condition | Value | Unit |
|---|---|---|---|
| Mixing ratio (parts by weight) | EP 5504 : EH 5909 | 100 : 9 | – |
| Mixture viscosity (DIN 53019) | 25 °C | 3,000 ± 750 | mPa·s |
| Density (DIN 53217) | 20 °C | 1.62 ± 0.05 | g/cm³ |
| Pot life (150 g, doubling viscosity) | 23 °C | ~75 | min |
| Property | Condition | Value | Unit |
|---|---|---|---|
| Shore hardness (DIN 53505) | 24 h RT | 82 Shore D | |
| Shore hardness | 24 h / 80 °C | 83 Shore D | |
| Bending strength (DIN 53452) | – | 90–100 | N/mm² |
| Impact strength (DIN 53453) | – | 22–25 | MPa |
| Compressive strength (DIN 53455) | – | 110–120 | N/mm² |
| Tensile strength (DIN 53455) | – | 50–60 | N/mm² |
| Modulus of elasticity (DIN 53455) | – | 2200–2500 | MPa |
| Glass transition temperature (Tg) | – | 97 | °C |
| Linear coefficient of expansion | – | 6–6.5 × 10⁻⁵ | K⁻¹ |
| Property | Condition | Value | Unit |
|---|---|---|---|
| Dielectric strength | – | 20 | kV/mm |
| Dielectric constant (εr) | 50 Hz, RT | 5.4 | – |
| Dielectric loss (tan δ) | 50 Hz, RT | 0.04 | – |
| Volume resistivity | – | 5.6 × 10¹⁴ | Ω·cm |
| Property | Condition | Value | Unit |
|---|---|---|---|
| Thermal conductivity (DIN 52613) | – | 0.96 | W/m·K |
| Thermal class | – | F (155 °C) | – |
| Flame resistance | UL 94 | V-0 @ 2.95 mm | – |
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