EPUSIL EP 71/304 IP
Low Viscosity, Room
Temperature Curing
DESCRIPTION
Epusil EP
71/304 IP is a low viscosity, two components, room
temperature curing, transparent compound with high
thermal shock resistance (-40 to 1000C)
PROPERTIES - UNCURED
EP 71 (A)
EPC 304 IP (B)
Color, visual
...............................................
Transparent Yellow
Viscosity, ASTM-D-2393 (cps @ 250C)
.... 300-500 250-300
Specific Gravity, g/cm3
...............................
1.1 0.98
Mix Ratio
(Weight) ...................................
100 40
Mix Viscosity, ASTM-D-2393 (cps @ 250C)
300-500
Gel Time, 100 gr. @ 250 C
......................... 150
min
De mold time @ 250 C
………………….... 12 hrs.
Jinal Properties @ 250 C
………………….. 7 days
Shelf Life @ 250C, months
..................…… 12
12
PROPERTIES - CURED
Physical
Hardness, ASTM-D-2240
…….....…......... 65-70 Shore D
Tensile Strength, ASTM-D-638
…….…......... 500-550 kg/cm2
Tensile Elongation, ASTM-D-638
……….…. 13-15%
Coefficient of thermal expansion, (cm/cm/0C)..
30 * 10-6
Electrical
Dielectric Strength, ASTM-D-149
….............. 400 volts/mil
Dielectric Constant, ASTM-D-150
........…..… 4.5
Dissipation Factor, ASTM-D-150
…………… 0.08
Volume resistivity, ASTM-D-257
...........…… 1014
Ohm/cm
Working Temperature Range
0C
……………… -40 – 100
Mixing instruction
1.
Mix thoroughly in the original container
2.
Weigh out require amount of EP 71
3.
Weigh into 100 units of EP 71 40 units of EPC 304 IP
4.
Mix thoroughly, being careful to scrape sides and
bottom of the container to
ensure proper mixing
5.
Evacuate for 2 to 5 minutes if void free casting is
required
6.
Pour into cavity or mold
* After post curing of 3 to 4 hours at 900
the hardness will reach 80 Shore D
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