Item Name: Stobicast® L 622.01
Manufacturer: Stockmeier Urethanes GmbH & Co. KG
Technologies: 2-component elastomeric polyurethane casting resin
Color: Black
Cure Type: Room temperature or accelerated by heat (e.g. 4 h at 100 °C)
Package Size: 200 L drums. Other sizes on request.
Shelf Life: 6 months
Stobicast® L 622.01 is a two-component elastomeric polyurethane casting resin with reliable electrical performance and moderate mechanical strength. It is designed for low-voltage encapsulation applications such as transformers, capacitors, coils, and switches. With balanced density, pot life of up to 50 minutes, and good dielectric properties, it provides an efficient and versatile solution for electrical insulation in demanding environments.
Encapsulation and insulation of low-voltage components such as transformers, coils, capacitors, and switches.
Suitable for electrical devices requiring flexible resin with stable dielectric properties.
Designed for castings exposed to moderate moisture and mechanical stress.
(measured at 20 °C unless specified)
| Property | Polyol | Polyisocyanate | Mixture (Uncured) | Cured (16h/80 °C) |
|---|---|---|---|---|
| Density (g/cm³) | 1.13 | 1.08 | 1.12 | – |
| Viscosity (mPa·s) | 1300 | 3500 | 2200 | – |
| Mixing ratio (by weight) | 100 | 100 | – | – |
| Flash point (°C) | 200 | 200 | – | – |
| Pot life (20 °C) | – | – | max. 50 min | – |
| Shore hardness | – | – | – | A 55 |
| Tensile strength (N/mm²) | – | – | – | 2.5 |
| Elongation at break (%) | – | – | – | 68 |
| Dielectric strength (kV/mm) | – | – | – | 32 |
| Surface resistivity (Ω) | – | – | – | 10¹³ |
| Volume resistivity (Ω·cm, 20 °C) | – | – | – | 10¹³ |
| Tracking resistance (CTI, V) | – | – | – | >600 |
| Dielectric constant (εr) | – | – | – | 4.6 (23 °C), 7.1 (50 °C), 6.6 (80 °C) |
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