EPUSIL EP 501
Clear Casting Epoxy
DESCRIPTION
Epusil EP 501 is a clear, unfilled epoxy with
moderate viscosity for general-purpose casting and
impregnation, exhibiting excellent electrical and
physical properties.
PROPERTIES - UNCURED
EP 501
EPC 9 EPC 264
Color,
visual..........................………....
Clear- clear
Light Brown
Viscosity, ASTM-D-2393 (cps @ 250C)
10-12,000 300 700
Specific Gravity ………………….….....
1.15+/- 0.02
0.98+/-0.02 1.03+/-0.02
Mix Ratio (weight)
............………........
100:16 100:29
Mix Viscosity, ASTM-D-2393 (@ 250C)
3000 cps 4000 cps
Pot Life @ 250 C (100
gr.)..………......
30 min. 2-3 hours
Shelf Life @ 250C
............…….............
12 months min.
PROPERTIES - CURED
PHYSICAL
Hardness,
ASTM-D-2240 (Durometer)
….…. Shore D 85-88
Shore D 88-92
Tensile
Strength, ASTM D-638, kg/cm2
……. 750
800
Tensile
Elongation, ASTM D-638
………….. 2
% 1.5 %
Flexural
Strength, ASTM-D-790
………….....
1200 1300
Compressive
Strength, ASTM D-695, kg/cm2
.. 1100
1200
Coefficient of Thermal Expansion (cm/cm.0C).
55 * 10-6 46 * 10-6
Heat Distortion point (conditioned in post
cure). 1100C
1600C
ELECTRICAL
Dielectric Strength, ASTM D-149 (kV/mm)
.. 18
18
Dielectric Constant, ASTM -D- 150 ………….
3.9 4.0
Dissipation
Factor, ASTM -D- 150 ………..
0.036 0.032
Volume Resistivity, ASTM -D- 257
(ohm/cm) 6 * 1015
12 * 1015
MIXING INSTRUCTION
1.
Weigh out required amount of Epusil EP 501
2.
Mix thoroughly, being careful to scrape sides and
bottom of container to ensure proper blending
3.
Evacuate for 5 to 10 if void-free castings are
required.
4.
Pour into cavity or mold.
CURE SCHDULE
EPC 9 – Cure at room temperature for 4 to 8 hours
with full curing after 24 hours.
EPC
11 – 250 gr. masses: Cure at room temperature up to
hardening and than 2-3 hours at 700C.
For full properties a post Cure of 2-3 hours at 1000C
1
kg. masses: Cure 2-3 hours at 600C.
Post Cure 2-3 hours at 1000C
Large masses: Cure overnight at room temperature.
Post Cure 2-3 hours at 750C; than 3 hour
at 1000C or more according to the Tg
needed.
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