LOCTITE® STYCAST US 5544

Features and Benefits

LOCTITE STYCAST US 5544, Potting and Encapsulating
LOCTITE® STYCAST US 5544 is a fast gelling, flexible, flame retardant, mineral-filled, polyurethane compound. It is a fast-setting potting compound which is low in viscosity, therefore flows well and adheres well to many substrates. It has very low odor and does not contain TDE or mercury compounds. Please refer to the TDS for alternate cure schedules.
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Technical Information

Applications Encapsulating
Coefficient of thermal expansion (CTE), Above Tg 155.0 ppm/°C
Coefficient of thermal expansion (CTE), Below Tg 114.0 ppm/°C
Cure schedule, Alternate @ 60.0 - 85.0 °C 0.5 hr.
Cure schedule, Recommended @ 23.0 °C 2.0 - 4.0 hr.
Cure type Heat cure
Glass transition temperature (Tg) 25.0 °C
Mix ratio, by volume 1 : 4.81
Mix ratio, by weight 15 : 85
Number of components 2 part
Shore hardness, Shore A 79.0
Tensile strength 1320.0 psi
Thermal conductivity 0.355 W/mK
Volume resistivity 3.6x10¹³ Ohm cm
Mixed
Color, Mixed White
Density, Mixed @ 23.0 °C 1.4 g/cm³
Viscosity, Mixed @ 23.0 °C 2000.0 mPa·s (cP)
Resin
Color, Resin Brown
Density, Resin @ 23.0 °C 1.23 g/cm³
Viscosity, Resin @ 23.0 °C 75.0 mPa·s (cP)
Hardener
Color, Hardener White
Density, Hardener @ 23.0 °C 1.46 g/cm³
Viscosity, Hardener @ 23.0 °C 11000.0 mPa·s (cP)