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SABIC VALOX™ FR 4521 PBT (Asia)
Categories:
Polymer
;
Thermoplastic
;
Polyester, TP
;
Polybutylene Terephthalate (PBT)
Material Notes:
VALOX 4521 is a 20% glass filled, high flow, flame retardant Polybutylene Terephthalate (PBT) injection moldable grade. It has excellent chemical resistance and a UL94V0@0.75 flame rating and 5VA@2.0mm.
Information provided by SABIC
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Physical Properties
Original Value
Comments
Specific Gravity
1.53
g/cc
ASTM D792
Mechanical Properties
Original Value
Comments
Tensile Strength at Break
91.0
MPa
5 mm/min; ASTM D638
Tensile Strength, Yield
89.0
MPa
5 mm/min; ASTM D638
Elongation at Break
2.5 %
5 mm/min; ASTM D638
Elongation at Yield
2.4 %
5 mm/min; ASTM D638
Tensile Modulus
3510
MPa
5 mm/min; ASTM D638
Flexural Strength
137
MPa
brk, 1.3 mm/min, 50 mm span; ASTM D790
Flexural Modulus
4960
MPa
1.3 mm/min, 50 mm span; ASTM D790
Izod Impact, Notched
42.0
J/m
ASTM D256
Izod Impact, Unnotched
480
J/m
ASTM D4812
Electrical Properties
Original Value
Comments
Arc Resistance
120
-
180
sec
ASTM D495
Comparative Tracking Index
250
-
400
V
UL 746A
Hot Wire Ignition, HWI
>=
120
sec
UL 746A
High Amp Arc Ignition, HAI
>=
120
arcs
UL 746A
High Voltage Arc-Tracking Rate, HVTR
>=
150
mm/min
UL 746A
Thermal Properties
Original Value
Comments
Hot Ball Pressure Test
200
°C
IEC 60695-10-2
Deflection Temperature at 0.46 MPa (66 psi)
218
°C
@Thickness 3.20 mm
unannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)
205
°C
@Thickness 3.20 mm
unannealed; ASTM D648
UL RTI, Electrical
130
°C
UL 746B
UL RTI, Mechanical with Impact
130
°C
UL 746B
UL RTI, Mechanical without Impact
130
°C
UL 746B
Flammability, UL94
V-0
@Thickness 0.760 mm
UL 94
Processing Properties
Original Value
Comments
Nozzle Temperature
245
-
260
°C
Injection Molding
Zone 1
240
-
255
°C
Zone 2
245
-
260
°C
Zone 3
250
-
265
°C
Melt Temperature
250
-
265
°C
Mold Temperature
65.0
-
90.0
°C
Drying Temperature
120
°C
Injection Molding
Dry Time
3.00
-
4.00
hour
Injection Molding
12.0
hour
Cumulative; Injection Molding
Moisture Content
0.020 %
Back Pressure
0.300
-
0.700
MPa
Shot Size
40 - 80 %
Vent Depth
0.00250
-
0.00380
cm
Screw Speed
50
-
80
rpm
Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's
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PSABI10331 / 243798
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