Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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Item Name: Elan-tron® PU 04272/PH 04272 100:33
Manufacturer: ELANTAS Beck GmbH
Technologies: Two-component filled semi-rigid polyurethane system, RoHS compliant, good electrical and mechanical properties, thermal class F (155°C)
Color: Resin – Not specified, Hardener – Pale yellow
Cure Type: Room temperature curing; post-curing recommended for optimal stabilization
Package Size: Contact to Techniq VN for details
Shelf Life: 12 months
Elan-tron® PU 04272/PH 04272 (Epoxylite® EIP 4272 RESIN / HARDENER) is a two-component polyurethane potting compound designed for sealings, insulation, and encapsulation. It is semi-rigid, filled, and offers reliable mechanical and electrical properties. Classified as Thermal Class F (155°C), the system is RoHS compliant and cures at room temperature with optional post-curing to enhance stability.
Potting and encapsulation of electrical and electronic components
Sealings and insulators for devices
Cable jointing in low- and medium-voltage assemblies
Suitable for manual, automatic, or vacuum casting
| Property | Resin | Hardener | Notes |
|---|---|---|---|
| Density (25°C) | 1.20 g/ml | 1.16–1.20 g/ml | Good consistency |
| Viscosity (25°C) | 1,000–1,600 mPas | 60–120 mPas | Flowable |
| Colour | – | Pale yellow | – |
| Mixing ratio (by weight/volume) | 100 | 33 | Standard formulation |
| Pot life (25°C) | 10–15 min | – | Doubles viscosity |
| Gelation time (25°C) | 8–15 min | – | Depends on sample size |
| Property | Value | Notes |
|---|---|---|
| Density (25°C) | 1.19–1.23 g/ml | Semi-rigid cured system |
| Hardness (Shore A/15) | 40–45 | Moderate flexibility |
| Glass transition (Tg) | 5–15°C | Stable in operating range |
| Water absorption (24h RT) | 0.15–0.20% | Low uptake |
| Water absorption (2h 100°C) | 0.07–0.09% | Minimal swelling |
| Linear thermal expansion | 190–210 x10⁻⁶/°C | Moderate |
| Dielectric constant (25°C) | 4.5–5.5 | Reliable insulation |
| Volume resistivity (25°C) | 5×10¹⁴ – 9×10¹⁴ Ω·cm | High electrical resistance |
| Dielectric strength | 20–22 kV/mm | Strong insulation |
| Tracking index (CTI) | >600 | High safety margin |
| Flexural strength | 2.5–3.5 MPa | Stable under stress |
| Tensile strength | 0.75–0.85 MPa | Low brittleness |
| Elongation at break | 75–85% | Good flexibility |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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