Henkel Loctite® Stycast® 2651-40 W1 with CAT 9 Epoxy Encapsulant

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Henkel Loctite® Stycast® 2651-40 W1 with CAT 9 Epoxy Encapsulant
Categories:	Polymer; Thermoset; Epoxy; Epoxy Encapsulant, Unreinforced
Material Notes:	Loctite Stycast 2651-40 W1 provides the following product characteristics: Low viscosity Room temperature cure capability Can be color coded to specification Cure: Room temperature or Heat cure Application: Potting, Encapsulant Loctite Stycast 2651-40 W1 epoxy encapsulant is designed for general purpose applications and has excellent adhesion to a wide variety of substrates. When fully cured, the material is readily machined with carbide tools. Loctite Stycast 2651-40 W1 can be used with a variety of catalysts. CATALYST DESCRIPTION Loctite CAT 9 provides the following product characteristics: General purpose Good chemical resistance Good physical strength Cure: Room temperature cure Information provided by Henkel.
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Physical Properties	Metric	English	Comments

Density	1.00 g/cc	0.0361 lb/in³	Part B, Loctite CAT 9
	1.50 g/cc	0.0542 lb/in³	Part A, Loctite Stycast 2651-40 W1
Water Absorption	0.030 % @Time 86400 sec	0.030 % @Time 24.0 hour	Cured
	0.070 % @Time 605000 sec	0.070 % @Time 168 hour	7 Days, Cured
Viscosity	450 cP	450 cP	Part B, Loctite CAT 9
Brookfield Viscosity	33000 cP	33000 cP	Part A, Loctite Stycast 2651-40 W1; Spindle 6, speed 5 rpm
Linear Mold Shrinkage	0.0050 cm/cm	0.0050 in/in

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	90	90
Modulus of Elasticity	0.101 GPa @Temperature 150 °C	14.6 ksi @Temperature 302 °F
	0.726 GPa @Temperature 100 °C	105 ksi @Temperature 212 °F
	4.361 GPa @Temperature 50.0 °C	632.5 ksi @Temperature 122 °F
	4.463 GPa @Temperature 35.0 °C	647.3 ksi @Temperature 95.0 °F

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.40e+15 ohm-cm	1.40e+15 ohm-cm
Surface Resistance	6.60e+15 ohm	6.60e+15 ohm
Dielectric Constant	3.9 @Frequency 1e+6 Hz	3.9 @Frequency 1e+6 Hz
	4.6 @Frequency 1000 Hz	4.6 @Frequency 1000 Hz
	4.8 @Frequency 50 Hz	4.8 @Frequency 50 Hz
Dissipation Factor	0.030 @Frequency 1e+6 Hz	0.030 @Frequency 1e+6 Hz
	0.044 @Frequency 1000 Hz	0.044 @Frequency 1000 Hz
	0.052 @Frequency 50 Hz	0.052 @Frequency 50 Hz

Thermal Properties	Metric	English	Comments
CTE, linear	60.0 µm/m-°C	33.3 µin/in-°F	Below Tg
	148 µm/m-°C	82.2 µin/in-°F	Above Tg
Thermal Conductivity	0.480 W/m-K	3.33 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	130 °C	266 °F	Continuous
	150 °C	302 °F	Intermittent
Minimum Service Temperature, Air	-40.0 °C	-40.0 °F	Continuous
	-40.0 °C	-40.0 °F	Intermittent
Glass Transition Temp, Tg	110 °C	230 °F	DMA, Tangent Delta
	117 °C	243 °F	TMA

Processing Properties	Metric	English	Comments
Cure Time	60.0 - 120 min @Temperature 65.0 °C	1.00 - 2.00 hour @Temperature 149 °F	Option 3
	240 - 360 min @Temperature 45.0 °C	4.00 - 6.00 hour @Temperature 113 °F	Option 2
	960 - 1440 min @Temperature 25.0 °C	16.0 - 24.0 hour @Temperature 77.0 °F	Option 1
Working Life	45.0 min @Temperature 25.0 °C	45.0 min @Temperature 77.0 °F	100 g
Shelf Life	12.0 Month	12.0 Month	Part A, Loctite Stycast 2651-40 W1

Descriptive Properties
Appearance	Black		Part A, Loctite Stycast 2651-40 W1
Mix Ratio, by Volume	100 : 13.5		Material : Catalyst
Mix Ratio, by Weight	100 : 9		Material : Catalyst
Weight Loss (%)	0.04		@ 150°C
	0.1		@ 200°C
	0.21		@ 250°C
	0.38		@ 300°C
	58.6		@ 700°C

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