| B2(4X)C |
Special
Over-Expanded
4to 1 Ratio
Flexible Polyolefin |
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Specification
Reference |
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UL224
File E70631 YDQS2 |
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MIL-DTL-23053/5
Class 1, Overexpanded. |
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Repl
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aces |
| Raychem |
RP-4800 |
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RT1122 |
| Remtek |
RRT-135 |
| Alpha |
FIT-421 |
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Description
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Uses
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Operating
Temp
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Shrink
Temp
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Standard
Put-up
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B2(4X)
is a flexible, flame-retardant heat-shrinkable polyolefin
tubing, which is |
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specially overexpanded (4:1 expansion ratio) with minimal
longitudinal |
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change
(5% Max.) |
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Special
purpose applications such as cable jacket retrofit or repair
and electrical |
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insulation
of wire assemblies which have oversize components or connectors. |
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-55ºC,
to +135ºC, and up to 200ºC, for short durations. |
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90ºC |
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Spool |
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Property
(units) |
Test
Method
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Test
Method
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Physical
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Tensile
Strength (psi) |
ASTM
D638
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1500
MIN.
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Elongation
(%) |
ASTM
D638
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200
MIN.
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Specific
gravity |
ASTM
D792
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1.35
MAX.
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Low
temp. flex (-55ºC) |
MIL-DTL-23053
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No
Cracking
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Heat
shock (250ºC, 4 Hrs.) |
MIL-DTL-23053
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No
Cracking
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Heat
resistance, (175ºC, 168 Hrs.) Elongation (%) |
ASTM
D638
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100
MIN.
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Secant
modulus (psi) |
ASTM
D882
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25000
MAX.
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Longitudinal
Change (%) |
MIL-DTL-23053
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5
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Electrical
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Dielectric
strength (volts/mil) |
ASTM
D876
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500
MIN.
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Volume
resistivity (ohm-cm) |
ASTM
D876
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1.0
x 10 MIN
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Chemical
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Corrosion
(175ºC, 16 Hrs.) |
MIL-DTL-23053
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No
Corrosion
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Water
absorption (%) |
ASTM
D570
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0.5
MAX.
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Fluid
Resistance (23ºC, 24 Hrs.) Tensile |
MIL-DTL-23053
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1000
MIN.
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Strength
(psi)
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Flammability |
UL
224 VW-1
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pass
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Shrink
Temperature (nominal) |
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90ºC.
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