Thermally Conductive Compounds

EPOXICAST Thermally Conductive Compounds are pourable, filled epoxy resin systems offering excellent heat transfer, high voltage insulation, low exotherm and minimum shrinkage. It rapidly transfers heat, eliminates hot spot, and increases the operating efficiency of most encapsulated devices. Its low shrinkage minimizes risk of damage to fragile components. These products are designed for protecting components in applications such as densely packaged power supplies and heat generating components, integrated circuits, power and operational amplifiers, transformers and many types of semiconductors.

EPOXICAST		EC-1006	EC-1006M-4	EC-1009	EC-1012M	EC-1015	EC-1015LV	EC-1016M
Hardener		EH-24	PART-B	EH-21	EH-20M	EH-10	EH-26	EH-19M
Mix ratio by weight (Epoxicast/Hardener)		100/12	100/12	100/10	100/10	100/25	100/10	100/15
Mixed Viscosity @ 25°C	cps	1800	1800	3250	2850	3000	3000	4000
Pot life @ 25°C (100 grams)	hrs	2	2	2-3	2-3	>8	>8	2
Recommended Cure		24 hrs @ 25°C	24-48 hrs @ 25°C	24-48 hrs @ 25°C	24-48 hrs @ 25°C	2 hrs @ 70°C+ 2 hrs @ 150°C	2 hrs @ 70°C+ 2 hrs @ 150°C	24 hrs @ 25°C
Alternate Cure		1-2 hrs @ 100°C	1-2 hrs @ 100°C	1-2 hrs @ 100°C	1-2 hrs @ 65°C	4 hrs @ 100°C	6 hrs @ 125°C	2 hrs @ 80°C
TYPICAL CURED PROPERTIES
Color		Black	Black	Black	Black	Black	Black	Black
Specific Gravity		1.58	1.58	1.9	1.7	1.95	1.95	2.1
Hardness	Shore	D-89	A-85	D-89	D-91	D-92	D-92	D-92
Thermal Conductivity	W/m°K	1.0	0.7	1.32	1.1	1.1	1.2	1.2
Water Absorption (24 hrs. immersion @ 25°C)	%	0.18	0.12	0.09	0.09	0.04	0.04	0.01
Linear Shrinkage	%	0.31	0.31	0.31	0.074	0.3	0.3	0.01
Glass Transition Temperature	°C	78	28	70	90	145	145	65
Coefficient of Thermal Expansion	10^-6/°C	39	-	34	38	34	34	29
Service Temperature Range	°C	-55°C to 120°C	-55°C to 120°C	-55°C to 155°C	-55°C to 165°C	-55°C to 180°C	-55°C to 180°C	-55°C to 150°C
Flexural Strength	psi	14,100	>8000	18,100	14,800	12,300	12300	12,300
Flexural Modulus	psi	9x10⁵	-	9x10⁵	1.2x10⁶	7x10⁵	1.2x10⁵	2x10⁵
Dielectric Strength (3mm thickness)	Volt/mil	460	480	480	480	450	480	460
Dielectric Constant	@ 1 kHz	4.8	4.8	6.1	4.73	5.5	4.7	6.3
Dissipation Factor	@ 1 kHz	0.014	0.14	0.014	0.01	0.021	0.01	0.01
Volume Resistivity	Ohm-cm	3x10¹⁵	1x10¹⁴	3x10¹⁵	1x10¹⁶	1x10¹⁵	1x10¹⁶	1x10¹⁵

DISCLAIMER: All data given here is offered as a guide to the use of these materials and not as a guarantee of their performance. The user should evaluate their suitability for own purposes. Properties are typical and should not be used in preparing specifications. Statements are not to be construed as recommendations to infringe any patent.