EPUSIL EP 333 HV
Self-extinguishing Casting Compound Flame Class 94 V
- 0
DESCRIPTION
Epusil EP 333 HV
is a mid viscosity, self-extinguishing epoxy potting
and casting compound, which conforms to Underwriters
Laboratories standard 94 flame class. It is used
when high physical and electrical properties are
necessary and where self-extinguishing properties
are important.
PROPERTIES - UNCURED
EP 333 HV
EPC 333
Color,
visual................................
Black Clear
Viscosity @ 250.
C (cps)............
11500-14000 120-150
Specific
Gravity gr./cm3
............
1.6-1.62 0.98-1.02
Mix Ratio (by
weight) .................
100:10.5-10.7
(by volume) …………
100:18.3-18.9
Mix Viscosity,
cps.......................
7000-9000
Pot Life @ 250
C (100 gr.).......... 60-90
min.
Gel Time @ 250
C (100 gr.)........ 150-190
min.
Shelf Life @ 250
......................... 12
months min.
PROPERTIES - CURED
PHYSICAL
Hardness,
ASTM-D-2240 (Durometer) Shore D 73-79
Tensile
Strength, ASTM D-638 …….. 740-780
kg/cm2
Tensile
Elongation, ASTM D-638 ….. 3-3.5 %
Compressive
Strength, ASTM D-695 . 1150-1300
kg/cm2
Coefficient of
linear Expansion.…….. 35-45 * 10-6
10K
Working Temperature
....................... -40 to 1100C
Flammability acc. to
UL 94 standard V-0
ELECTRICAL
Dielectric
Strength, ASTM D-149 ………. 18 Kv/mm
Dielectric
Constant, ASTM -D- 150 …..… 4.4
Dissipation
Factor, ASTM -D- 150 …..… 0.02
Volume
Resistivity, ASTM -D- 257 ……. 1015
Ohm/cm
Thermal
Conductivity, W/moC
………….. 1 – 1.1
MIXING INSTRUCTION
1.
Mix the contents of EP 333 HV in its original
container.
2.
Weigh out required amount of Epusil EP 333 HV.
3.
Weigh into appropriate curing agent:
EPC 333 – 10.5 to 10.7 parts per 100 parts of EP 333
HV.
EPC 9 –
5
to 6 parts per 100 parts of EP 333 HV.
EPC 11 – 7 to 8 parts per 100 parts of EP 333 HV.
4.
Mix thoroughly, being careful to scrap sides and
bottom of container to ensure proper blending.
5.
Evacuate for
5
to 10 minuet if required.
6.
Pour into cavity or mold.
CURE SCHDULE
EPC 333 - Cure 3 to 4 hours at room temperature. For working
temperature of 1100C a post curing of 3
hours at 1000C is need.
EPC 11
- Cure for 6 to 8 hours, then at 750C for
2 to 3 hours and post cure of 2 to 3 hours at 1300C.
For large mass cure at room temperature until it
gels and than post cure at 800C and 1300
C for 2 to 3 hours in accordance.
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