Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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• Item Name: Araldite® DBF / Aradur® HY 956 EN
• Manufacturer: Huntsman Advanced Materials
• Technologies: Two-component, low-viscosity, unfilled epoxy resin with polyamine hardener
• Color: Clear liquid (both resin and hardener); cured casting – Yellow
• Cure Type: Room temperature curing (minimum 24–48 hours) or accelerated with 60°C
• Package Size: Contact to Techniq VN for details.
• Shelf Life: Contact to Techniq VN for details.
Araldite® DBF / Aradur® HY 956 EN is a low-viscosity, unfilled epoxy casting resin system designed for room temperature curing. It allows high filler addition, provides good heat resistance, and offers strong resistance to atmospheric and chemical degradation.
Encapsulation and potting of low-voltage and electronic components.
Processing methods: Casting and vacuum casting.
| Property | Araldite® DBF (Resin) | Aradur® HY 956 EN (Hardener) |
|---|---|---|
| Appearance | Clear liquid | Clear liquid |
| Viscosity at 25°C (mPa·s) | 1350 – 2000 | 370 – 470 |
| Specific Gravity at 25°C (g/cm³) | 1.15 | 1.03 |
| Epoxy Content (Eq/kg) | 4.20 – 4.35 | – |
| Form | Liquid epoxy resin with plasticizer | Formulated low viscosity polyamine |
| Property | Value |
|---|---|
| Mix Ratio (by weight) | 100 (Resin) : 20 (Hardener) |
| Mix Ratio (by volume) | 100 : 22 |
| Mix Viscosity at 25°C | 1800 mPa·s |
| Mix Viscosity at 40°C | 1300 mPa·s |
| Pot Life at 25°C (to 5000 mPa·s) | 70 min |
| Pot Life at 25°C (to 15000 mPa·s) | 120 min |
| Pot Life at 40°C (to 5000 mPa·s) | 45 min |
| Pot Life at 40°C (to 15000 mPa·s) | 62 min |
| Gel Time at 40°C | 62 min |
| Gel Time at 60°C | 15 min |
| Minimum Curing Cycle | 24–48 h at RT OR 4 h at RT + 4 h at 60°C |
| Property | Value |
|---|---|
| Color of Casting | Yellow |
| Density (g/cm³) | 1.1 |
| Glass Transition Temp (°C) | 64 |
| Flexural Strength (MPa) | 107 |
| Elongation at Break (%) | 12 |
| Flexural Modulus (MPa) | 2900 |
| Hardness (Shore D) | 80 |
| Tensile Strength (MPa) | 58 |
| Elongation at Break (%) | 6.4 |
| Tensile Modulus (MPa) | 2880 |
| Impact Strength (kJ/m²) | 69 |
| Water Absorption (23°C, 10d) | 0.63% |
| Water Absorption (100°C, 30 min) | 0.65% |
| Property | Value |
|---|---|
| Dielectric Strength (2 mm) | 24 kV/mm |
| Dielectric Loss Factor (50 Hz, 25°C) | 0.8% |
| Dielectric Constant (50 Hz, 25°C) | 4.1 |
| Volume Resistivity (25°C) | 7 × 10¹⁵ Ω·cm |
| Tracking Resistance (CTI) | > 600 |
| Electrolytic Corrosion | Grade A-1 |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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