Henkel Loctite® Stycast® 2850 MT CAT 11 Two-Component Epoxy

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Henkel Loctite® Stycast® 2850 MT CAT 11 Two-Component Epoxy
Categories:	Polymer; Thermoset; Epoxy; Epoxy Encapsulant, Unreinforced
Material Notes:	Loctite Stycast 2850 MT CAT 11 provides the following product characteristics: High thermal conductivity Low CTE Long pot life Excellent chemical resistance Good physical and chemical properties at elevated temperatures Cure: Heat cure Application: Encapsulation Loctite Stycast 2850 MT CAT 11 is recommended for encapsulation of components that require heat dissipation and thermal shock properties. It is also recommended for use in high voltage applications where surface arching or tracking is a concern. Loctite Stycast 2850 MT CAT 11 has a slightly grainy consistency due to the filler size. Loctite Stycast 2850 MT can be used with a variety of catalysts. Information provided by Henkel.
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Physical Properties	Original Value	Comments

Density	2.60 g/cc	Part A, Loctite Stycast 2850MT
	2.70 g/cc	Mixed
Water Absorption	0.020 % @Time 86400 sec
Viscosity	48 cP @Temperature 65.0 °C	Part B, Loctite CAT 11
Brookfield Viscosity	46000 cP	Mixed
	145000 cP	Part A, Loctite Stycast 2850MT; 2.5 rpm, #6
Linear Mold Shrinkage	0.0019 cm/cm
Outgassing - Total Mass Loss	0.030 %	NASA Method, Sample cured 24 hours @ 74ºC; CVCM
	0.52 %	NASA Method, Sample cured 24 hours @ 74ºC; TML

Mechanical Properties	Original Value	Comments
Hardness, Shore D	96
Flexural Strength	110 MPa
Compressive Strength	172 MPa

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 1.00e+15 ohm-cm
Dielectric Constant	5.72 @Frequency 1e+6 Hz
Dielectric Strength	15.5 kV/mm
Dissipation Factor	0.031 @Frequency 1e+6 Hz

Thermal Properties	Original Value	Comments
CTE, linear	25.5 µm/m-°C @Temperature <=87.0 °C	Below Tg
	77.0 µm/m-°C @Temperature >=87.0 °C	Above Tg
Thermal Conductivity	1.90 W/m-K
Maximum Service Temperature, Air	155 °C
Minimum Service Temperature, Air	-55.0 °C
Glass Transition Temp, Tg	87.0 °C

Processing Properties	Original Value	Comments
Cure Time	0.500 - 1.00 hour @Temperature 120 °C	Option 3. Post cure of 2 to 4 hours at the highest expected use temperature is recommended.
	2.00 - 4.00 hour @Temperature 100 °C	Option 2. Post cure of 2 to 4 hours at the highest expected use temperature is recommended.
	8.00 - 16.0 hour @Temperature 80.0 °C	Option 1. Post cure 2 to 4 hours at the highest expected use temperature is recommended.
Working Life	>= 240 min @Temperature 25.0 °C	100 g mass
Shelf Life	12.0 Month	Part A, Loctite Stycast 2850MT

Descriptive Properties
Appearance	Blue	Part A, Loctite Stycast 2850MT
Mix Ratio, by Volume	100 : 7.5	Material : Catalyst
Mix Ratio, by Weight	100 : 3	Material : Catalyst

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PHENK7928 / 255415

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