Henkel Loctite® Stycast® 1090 SI CAT 11 Two-Component Epoxy

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Henkel Loctite® Stycast® 1090 SI CAT 11 Two-Component Epoxy
Categories:	Polymer; Thermoset; Epoxy; Epoxy Encapsulant, Unreinforced
Material Notes:	Product Benefits Low density Low dielectric constant Two component Low viscosity Low cure shrinkage Low CTE Long pot life Excellent chemical resistance Excellent physical and chemical properties at elevated temperatures Cure: Heat Cure Application: Encapsulation Loctite Stycast 1090 SI CAT 11 is designed for encapsulation and potting of electronic assemblies that require lower weight such as aerospace applications. It is completely unicellular so moisture absorption is negligible. Loctite Stycast 1090 SI can be used with a variety of catalysts. For more information on mixed properties when used with other available catalysts, please contact your local technical service representative for assistance and recommendations Information provided by Henkel.
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Physical Properties	Original Value	Comments

Specific Gravity	0.700 g/cc	Part A, Loctite Stycast 1090 SI
Density	0.700 g/cc	Mixed
Water Absorption	0.13 %	Cured; ASTM D570
Viscosity	3500 cP	Mixed
	35 - 60 cP @Temperature 65.0 °C	Part B, Loctite CAT 11
Brookfield Viscosity	40000 cP	Part A, Loctite Stycast 1090 SI; 10 rpm, #6

Mechanical Properties	Original Value	Comments
Hardness, Shore D	80	ISO 868
Tensile Strength	37.0 MPa	ISO 37
Flexural Strength	50.0 MPa	ASTM D790
Compressive Strength	83.0 MPa	ISO 604

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 1.00e+13 ohm-cm	IEC 60093
Dielectric Constant	2.3 @Frequency 1e+6 Hz
Dissipation Factor	0.030 @Frequency 1e+6 Hz

Thermal Properties	Original Value	Comments
CTE, linear	43.0 µm/m-°C	ASTM D3386
Thermal Conductivity	0.170 W/m-K
Maximum Service Temperature, Air	155 °C
Minimum Service Temperature, Air	-55.0 °C

Processing Properties	Original Value	Comments
Cure Time	0.500 - 1.00 hour @Temperature 120 °C	Option 3, Post Cure: 2 to 4 hours at the highest expected use temperature
	2.00 - 4.00 hour @Temperature 100 °C	Option 2, Post Cure: 2 to 4 hours at the highest expected use temperature
	8.00 - 16.0 hour @Temperature 80.0 °C	Option 1, Post Cure: 2 to 4 hours at the highest expected use temperature
Working Life	>= 240 min @Temperature 25.0 °C	100 g mass
Shelf Life	12.0 Month	Part A, Loctite Stycast 1090 SI

Descriptive Properties
Appearance	Black	Part A, Loctite Stycast 1090 SI
Mix Ratio, by Volume	100 : 8	Resin : Hardener
Mix Ratio, by Weight	100 : 13.5	Resin : Hardener

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