LOCTITE STYCAST ES 1904

LOCTITE STYCAST ES 1904, Epoxy, Potting and Encapsulating LOCTITE® STYCAST ES 1904 is an opaque, medium-viscosity epoxy resin formulation recommended for small potting and laminating applications, excellent structural, mechanical and electrical properties are required. This two-part adhesive exhibits good wetting, cures at room temperature and develops strong, low shrinkage bonds to most materials including optical fibers, glass ceramics, most metals. It has excellent dimensional stability over a wide temperature range. This product is typically used in applications with an operating range of -60 °C to +125 °C.

• Medium viscosity
• Two components - requires mixing
• Good wetting
• Excellent dimensional stability over a wide temperature range

Applications	Encapsulating
Coefficient of Thermal Expansion (CTE), Above Tg	190.0 ppm/°C
Coefficient of Thermal Expansion (CTE), Below Tg	68.0 ppm/°C
Color	Opaque
Cure Type	Room Temperature (Ambient) Cure
Glass Transition Temperature (Tg)	80.0 °C
Mix Ratio, by Volume	2 : 1
Mix Ratio, by Weight	100 : 46
Number of Components	2 Part
Shore Hardness, Shore D	90.0
Technology	Epoxy
Mixed
Pot Life, Mixed @ 25.0 °C 100 g mass	8.0 - 10.0 min.
Resin
Density, Resin @ 25.0 °C	1.19 g/cm³
Viscosity, Resin @ 25.0 °C	25000.0 mPa·s (cP)
Hardener
Density, Hardener @ 25.0 °C	1.09 g/cm³
Viscosity, Hardener @ 25.0 °C	50000.0 mPa·s (cP)