EPUSIL EP 502 BK
LOW VISCOSITY,
CASTING EPOXY
DESCRIPTION
Epusil EP 502 BK
is a clear or colored, unfilled epoxy with low
viscosity for casting of electrical schemes and
devices. EP 502 BK exhibits excellent electrical and
physical properties.
PROPERTIES - UNCURED
EP 502 BK
EPC 502 BK
Color,
visual..................................
clear/black amber
Viscosity, ASTM-D-2393 (cps, @ 250C)
500-700 400-500
Specific Gravity (gr./cm3 @250
C)...
1.13+/-0.05 0.98
Mix Ratio (weight) .....................…
100:50
Mix Viscosity (cps at 250C)
.........
500-700
Pot Life @ 250C (100
gr.)..............
35-40 min
Shelf Life, @ 250 C
......................
12 months
PROPERTIES - CURED
Physical
Hardness, ASTM-D-2240 (Durometer) ......
Shore D 75
Tensile Strength, ASTM-D-638 ..................
3700 psi
Tensile Elongation ASTM-D-638...............
12.5 %
Flexural Strength, ASTM-D-790 ................
12000 psi
Compressive Strength, ASTM-D-695 ........
8000 psi
Coefficient of Thermal Expansion .............
60*10-6 1/k
ELECTRICAL
Dielectric Strength, ASTM-D-149 .............
15 kV/mm
Dielectric Constant, ASTM-D-150 .............
4.0
Dissipation Factor, ASTM-D-150 .............
0.025
Volume Resistivity, ASTM-D-257 (Ohm-cm)..
2*1015
MIXING INSTRUCTIONS
1.
Weigh out required amount of Epusil EP 502 BK, and
weigh into it 50 parts of Epcure EPC 502 BK per 100
parts of Epusil EP 502 BK.
2.
Mix curing agent in thoroughly.
3.
Evacuate for 2-5 minutes.
4.
Pour into mold or cavity.
CURE SCHEDULE
Mold Release Time, (100 gr. @ 250C) -
After 4-5 hours.
Full Properties - 7 days at room temperature or 10
hours at 600C.
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