Sheet Moulding Compound
Sheet Molding Compound (SMC) is a mixture of polymer
resin, inert fillers, fiber reinforcement, catalysts, pigments and stabilizers,
release agents, and thickeners and possesses strong dielectric properties.
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Properties
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Test Methods
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Values
|
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Specific Density
|
ASTM D790
|
1.7
|
|
Glass Contents (%)
|
N/A
|
25
|
|
Water Absorption (24Hrs)
(%)
|
ISO62
|
0.2
|
|
Tensile Strength (Kgf/cm2 )
|
ISO527
|
700
|
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Flexural Strength (Kgf/cm2
)
|
ISO178
|
1550
|
|
Impact Strength Izod (J/m)
|
ISO 179
|
600
|
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Compressive Strength (Kgf /cm2)
|
N/A
|
1800
|
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Dielectric Strength
(KV/mm)
|
IEC60243-1
|
12
|
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Comparative Tracking Index
(Volts)
|
IEC60112
|
>600
|
|
ARC Resistance (Secs.)
|
D-495
|
180
|
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FLAMMABILITY INDEX
|
UL-94
|
V-0
|
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Glow Wire Test(°C) ,3mm
|
IEC-60695-2-11
|
960
|
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Hot Wire Ignition Test
(Secs.)
|
D-3874
|
>120
|
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Relative Thermal Index,
Strength ( °C ) (Thickness - 3mm)
|
UL-746B
|
130
|
|
Relative Thermal Index,
Elect. (°C )(T -3mm)
|
UL-746B
|
105
|
|
High Voltage Arc Tracking
Rate(mm/min)
|
UL-746A
|
0 thr. 10
|
|
High Amp Arc Ignition (mean
no. of arcs)
|
UL-746A
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>120
|
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Material Group
|
IEC-60112
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1
|
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Pollution Degree
|
IEC-60950
|
3
|
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Insulation Class
|
as per NEMA
|
B
|
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Working Temp ( °C )
|
-
|
(-) 40°C to 130° C
|
|
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* Color can be customize
depending on Customer Requirement.
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