Henkel Loctite® Stycast® 2651-40 W1 with CAT 24LV Epoxy Encapsulant

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Henkel Loctite® Stycast® 2651-40 W1 with CAT 24LV 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 24LV provides the following product characteristics: Low color Low viscosity Excellent thermal shock and impact resistance Excellent adhesion to Glass Cure: Room temperature cure Information provided by Henkel.
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Physical Properties	Original Value	Comments

Density	1.05 g/cc	Part B, Loctite CAT 24LV
	1.50 g/cc	Part A, Loctite Stycast 2651-40 W1
Water Absorption	0.050 % @Time 86400 sec	Cured
	0.15 % @Time 605000 sec	7 Days, Cured
Viscosity	15 cP	Part B, Loctite CAT 24LV
Brookfield Viscosity	33000 cP	Part A, Loctite Stycast 2651-40 W1; Spindle 6, speed 5 rpm
Linear Mold Shrinkage	0.0084 cm/cm

Mechanical Properties	Original Value	Comments
Hardness, Shore D	88
Modulus of Elasticity	0.0500 GPa @Temperature 100 °C
	0.0600 GPa @Temperature 150 °C
	3.372 GPa @Temperature 50.0 °C
	3.54 GPa @Temperature 35.0 °C

Electrical Properties	Original Value	Comments
Volume Resistivity	1.60e+15 ohm-cm
Surface Resistance	2.20e+15 ohm
Dielectric Constant	3.9 @Frequency 1e+6 Hz
	4.9 @Frequency 50 Hz
	5.1 @Frequency 1000 Hz
Dissipation Factor	0.044 @Frequency 1000 Hz
	0.051 @Frequency 50 Hz
	0.051 @Frequency 1e+6 Hz

Thermal Properties	Original Value	Comments
CTE, linear	42.0 µm/m-°C	Below Tg
	167 µm/m-°C	Above Tg
Thermal Conductivity	0.460 W/m-K
Maximum Service Temperature, Air	105 °C	Continuous
	120 °C	Intermittent
Minimum Service Temperature, Air	-65.0 °C	Continuous
	-65.0 °C	Intermittent
Glass Transition Temp, Tg	73.0 °C	TMA
	77.0 °C	DMA, Tangent Delta

Processing Properties	Original Value	Comments
Cure Time	2.00 - 4.00 hour @Temperature 120 °C	Option 3
	4.00 - 6.00 hour @Temperature 45.0 °C	Option 2
	24.0 hour @Temperature 25.0 °C	Option 1
Working Life	30.0 min @Temperature 25.0 °C	100 g
Shelf Life	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 : 27	Material : Catalyst
Mix Ratio, by Weight	100 : 18	Material : Catalyst
Weight Loss (%)	0.2	@ 150°C
	0.34	@ 200°C
	0.45	@ 250°C
	0.57	@ 300°C
	58.2	@ 700°C

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