LOCTITE® STYCAST US 0155
Features and Benefits
LOCTITE STYCAST US 0155, Urethane, Potting and Encapsulating
LOCTITE® STYCAST US 0155 is a low viscosity, flexible, flame retardant, castor oil/MDI based urethane potting/encapsulating compound. This material was designed for potting indoor and outdoor telephone connector blocks. It is suitable for potting and encapsulating other electronic or electrical devices or assemblies. LOCTITE STYCAST US 0155 exhibits exceptional adhesion to thermoplastic and thermoset materials including ABS. This material can be utilized in a variety of applications due to its good thermal conductivity and flame retardancy. Please refer to the TDS for alternate cure schedules.
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Technical Information
| Applications | Encapsulating |
| Coefficient of thermal expansion (CTE), Above Tg | 153.0 ppm/°C |
| Coefficient of thermal expansion (CTE), Below Tg | 109.0 ppm/°C |
| Cure schedule, @ 25.0 °C | 16.0 hr. |
| Cure type | Heat cure |
| Glass transition temperature (Tg) | 0.0 °C |
| Mix ratio, by volume | 1 : 4 |
| Mix ratio, by weight | 21.1 : 100 |
| Number of components | 2 part |
| Physical form | Liquid |
| Shore hardness, Shore A | 83.0 |
| Storage temperature | 20.0 - 30.0 °C |
| Tensile strength | 320.0 psi |
| Thermal conductivity | 0.47 W/mK |
| Volume resistivity | 1.1x10¹⁴ Ohm cm |
| Mixed | |
| Color, Mixed | Tan |
| Density, Mixed @ 25.0 °C | 1.38 g/cm³ |
| Viscosity, Brookfield - RVF, Mixed Spindle 6, speed 10 rpm | 3500.0 mPa·s (cP) |
| Resin | |
| Color, Resin | Amber |
| Density, Resin @ 25.0 °C | 1.24 g/cm³ |
| Viscosity, Brookfield - RVF, Resin Spindle 2, speed 20 rpm | 200.0 mPa·s (cP) |
| Hardener | |
| Color, Hardener | White |
| Density, Hardener @ 25.0 °C | 1.47 g/cm³ |
| Viscosity, Brookfield - RVF, Hardener Spindle 4, speed 12 rpm | 7500.0 mPa·s (cP) |
LOCTITE® STYCAST US 0155
LOCTITE STYCAST US 0155, Urethane, Potting and Encapsulating