Henkel Loctite® Stycast® 2850FT/11 Two-Component Thermally Conductive Encapsulant

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Henkel Loctite® Stycast® 2850FT/11 Two-Component Thermally Conductive Encapsulant
Categories:	Polymer; Adhesive; Thermoset; Epoxy; Epoxy Encapsulant, Unreinforced
Material Notes:	Provides excellent heat dissipation and thermal shock resistance as well as protection from moisture and chemical agents. Typical applications include sensors, transformers, transducers, switches, and other small devices. Mix Ratio by weight = 100:4.5 Excellent Chemical Resistance Filled High temperature Cure Type: Heat Bonding Type: Epoxy
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Physical Properties	Metric	English	Comments

Density	2.29 g/cc	0.0827 lb/in³	Mixed
	2.40 g/cc	0.0867 lb/in³	Part A, Loctite Stycast 2850FT
Water Absorption	0.050 % @Time 86400 sec	0.050 % @Time 24.0 hour	Immersion
Viscosity	48 cP	48 cP	Part B, Loctite CAT 11
	64000 cP	64000 cP	Mixed
Brookfield Viscosity	250000 cP	250000 cP	Part A, Loctite Stycast 2850FT; Spindle 7, Speed 10 rpm
	250000 cP	250000 cP	Part A, Loctite Stycast 2850FT, Small Sample Adapter; Spindle 14, speed 3 rpm
Linear Mold Shrinkage	0.0020 cm/cm	0.0020 in/in
Outgassing - Total Mass Loss	0.020 %	0.020 %	NASA Method, Sample cured 4 hours @ 80ºC; CVCM
	0.29 %	0.29 %	NASA Method, Sample cured 4 hours @ 80ºC; TML

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	96	96
Flexural Strength	117 MPa	17000 psi
Compressive Strength	193 MPa	28000 psi

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+15 ohm-cm	1.00e+15 ohm-cm
Dielectric Constant	5.36 @Frequency 1e+6 Hz	5.36 @Frequency 1e+6 Hz
Dielectric Strength	15.0 kV/mm	381 kV/in
Dissipation Factor	0.043 @Frequency 1e+6 Hz	0.043 @Frequency 1e+6 Hz

Thermal Properties	Metric	English	Comments
CTE, linear	31.2 µm/m-°C	17.3 µin/in-°F	Alpha 1
	97.9 µm/m-°C	54.4 µin/in-°F	Alpha 2
Thermal Conductivity	1.28 W/m-K	8.88 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	155 °C	311 °F
Minimum Service Temperature, Air	-55.0 °C	-67.0 °F
Glass Transition Temp, Tg	115 °C	239 °F

Processing Properties	Metric	English	Comments
Cure Time	30.0 - 60.0 min @Temperature 120 °C	0.500 - 1.00 hour @Temperature 248 °F	Option 3. Post cure of 2 to 4 hours at the highest expected use temperature is recommended.
	120 - 240 min @Temperature 100 °C	2.00 - 4.00 hour @Temperature 212 °F	Option 2. Post cure of 2 to 4 hours at the highest expected use temperature is recommended.
	480 - 960 min @Temperature 80.0 °C	8.00 - 16.0 hour @Temperature 176 °F	Option 1. Post cure 2 to 4 hours at the highest expected use temperature is recommended.
Working Life	240 min @Temperature 25.0 °C	240 min @Temperature 77.0 °F	100 g
Shelf Life	12.0 Month	12.0 Month	Part A, Loctite Stycast 2850FT

Descriptive Properties
Appearance	Black		Part A, Loctite Stycast 2850FT
Mix Ratio, by Volume	100 : 9.5		Material : Catalyst
Mix Ratio, by Weight	100 : 4.5		Material : Catalyst

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