EPUSIL EP 118
Equal Ratio, Low viscosity, Non-abrasive
Epoxy Potting and Casting Compound
DESCRIPTION
Epusil EP 118 is an easy-to-use, equal ratio (by
volume), low viscosity epoxy potting/casting
compound, designed for production dispensing
equipment in protecting electronic components and
systems. Epusil Ep-118 features good electrical
properties.
PROPERTIES - UNCURED
Part A
Part B
Color,
visual............................……....
Black Gray
Viscosity ,
ASTM-D-2393 (cps @250). 4000 -
6000 3000 - 4000
Specific
Gravity …………..........…….
1.32 1.44
Mix Ratio
(weight).....................……..
1:1
Mix Viscosity,
ASTM-D-2393 (cps). 3000
– 4000
Pot Life @ 25 0C
…………………….. 1 ½ hours
Shelf Life @ 25
0 C
…………………… 12
months minimum
PROPERTIES - CURED
Physical
Hardness,
ASTM-D-2240 (Durometer)……….. Shore D 78
Tensile
Strength, ASTM D-638……………….. 9500 +/-
200 psi.
Tensile
Elongation, ASTM D-638…………….. 2%-5%
Compressive
Strength, ASTM D-695………… 12500 +/- 300
psi
Coefficient of
Thermal Expansion (cm/cm/0C).
20 *10-6
Electrical
Dielectric Strength,
ASTM D-149 (volts/mil)… 410
Dielectric Constant,
ASTM -D- 150 (60 Hz)…. 3.7
Dissipation Factor,
ASTM -D- 150 (60 Hz)…. 0.01
Volume Resistivity,
ASTM -D- 257 (ohm-cm). 1.0 * 1014
Thermal Conductivity
(W/ m 0C)…………… 0.58
MIXING INSTRUCTION
1.
Pre-mix the contents prior to use to assure
uniformity. Some light settling may occur which can
be easily re-incorporated.
2.
Measure out equal volumes of each component.
3.
Mix thoroughly, scraping both the bottom and sides
of the container.
4.
Pour into cavity or mold.
5.
Re-cover both containers immediately after use.
CURE SCHDULE
Overnight at room temperature (12-16 hours @ 25
0C, or 2 hours at room temperature (25 0C)
and then 2 hours at 55 0C.
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