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EPUSIL U 232
General purpose,
electrical potting and casting
Self-Extinguishing Urethane compound
DESCRIPTION
Epusil U 232 is a unique, moderate viscosity, two
components fast curing polyurethane casting
compound. The cured compound exhibits high physical
and electrical properties even at elevated
temperatures. Epusil U 232 is UL 94 V-0 standard
approved.
PROPERTIES - Uncured
Part A
Part B
Viscosity, cps @ 250C
....................
6000+/-1000 100-150
Specific Gravity
g/cm3 .................... 1.5
+/-0.03 1.2
Mix Ratio (weight)
..........................
100:20
Mixed Viscosity
...............................
3500-4000
Mixed Specific
Gravity g/cm3
.......... 1.45+/-0.04
Gel Time @ 250C,
min
.................... 20
De-mold Time 250C,
hr ...................
3-4
Ultimate Cure 250C
days ..................
7-8
Shelf Life 250C,
months ...................
6 6
PROPERTIES - Cured
Hardness, Shore D
.............................
65-70
Tensile Strength
kg/cm2
.................… 275
+/- 10
Tensile Elongation %
......................…
3.7 +/- 0.2
Compressive Strength
kg/cm2
........….. 420 - 440
Water Absorption %
........................… <
0.2
Flammability Rating
...........................
UL 94 - V - 0
Working temperature
0C ....................
100
ELECTRICAL
Dielectric Strength
kV/mm .................. 18
Dielectric Constant
............................... 4.0
Dissipation Factor
................................
0.030
Volume Resistivity,
Ohm-cm .......…..... 3*1014
Thermal
Conductivity, W/ m0C
......…... 0.8
MIXING INSTRUCTION
1.
Pre mix Epusil U 232 in the original container.
2.
Weigh out the required amount of part A.
3.
Weigh into 100 parts of Part A 20 parts of Part B.
4.
Mix thoroughly scraping both sides and bottom of the
mixing container.
5.
Pour into mold.
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