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)