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●Introduction
This product appears
in bulk. It is based on unsaturated polyester resin, reinforced
by glass fiber, to which other fillers and additives such as
hardener, lubricant and pigments are added. The final product
achieves high mechanical strength and perfect electrical properties,
especially the arc resistant and tracking resistant properties
are unique compare to the traditional thermosetting plastics.
The product has good molding property. It is an ideal substitute
material to make isolating structure parts of low-voltage electrical
appliance.
●Classification
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NO.
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ITEM
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Unit
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Test
Method
|
Index
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4342(DMC-1)
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4344(DMC-2)
|
4332(DMC-3)
|
|
1
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Density
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g/cm3
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ISO1183
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1.75—1.95
|
-
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|
2
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Water
absorption≤
|
mg
|
ISO62
|
20
|
-
|
|
3
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Shrinkage
|
%
|
ISO2577
|
0.15
|
0.3
|
|
4
|
HDT(A
method) ≥
|
℃
|
|
240
|
200
|
|
5
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Impact
strength≥
|
KJ/m2
|
ISO179
|
30
|
25
|
20
|
|
6
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Flexural
strength≥
|
MPa
|
ISO178
|
90
|
80
|
70
|
|
7
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Insulation
resistance
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Normal
condition≥
|
Ω
|
IEC167
|
1×1013
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-
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After
24hr. In the water≥
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1×1012
|
1×1012
|
|
8
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Dielectric
strength (90℃)≥
|
MV/m
|
IEC60243
|
12
|
10
|
|
9
|
Dissipation
factor(1MHz)≤
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IEC60250
|
0.015
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-
|
|
10
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Relative
permittivity(1MHz)≤
|
|
IEC60250
|
4.8
|
-
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|
11
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Arc
resistance≥
|
s
|
ASTM
D495
|
180
|
-
|
|
12
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Tracking
index≥
|
V
|
IEC112
|
600
|
-
|
|
13
|
Inflammability
|
UL
|
UL94
|
V-0
|
HB |
-
|
|
14
|
Temperature
index
|
℃
|
UL746B
|
155
|
130
|
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●Molding
conditions |
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Molding
condition
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Molding
method
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Compression
molding
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Injection
molding
|
|
Pressure
(MPa)
|
10—15
|
15—20
|
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Temperature
(℃)
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150—160
|
145—155
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Curing
time (s/mm)
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40—60
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30—50
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The
material should be pinched into small dough first and the mould
should be closed immediately after the material being put in
the middle of the mould. The unused material should be tightly
sealed in the original plastic bag.
●Package and storage
Packed in cardboard box with plastic inner of 25 kg net. Avoid
being heated and affected with damp. Don't put it in the place
near fire and out of sunlight. Keep in well-ventilated cool
place. The storage life is 3 months below 20℃. |
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