sabic valox 357 pc/pbt material for electrical equipment

Sabic Valox 357 PC/PBT

Application：Auto parts, Home appliance casings, Industry application

Density: 1.2g / m³

Melt index: 10.5g / 10min
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 Sabic Valox 357 PC/PBT alloy Description 

Valox 357 is polycarbonate and Polybutylene terephthalate (PBT) blend material, also known as"PC+PBT"or"PC/PBT"material produced by Saudi basic industry corporation for electrical equipment. This material offers excellent impact resistance and flame-retardant properties, achieving UL94 V-0 at 0.63 mm and 5VA at 3.0 mm. It is ideal for electronic components that require heat dissipation, impact resistance, and temperature resistance, such as spools, switches, and appliance housings.

Sabic Valox 357 PC+PBT pellets Advantage

  • Excellent flame-retardant properties, As a polymer material specifically designed for use in electronic and electrical equipment, Sabic Valox 357 PC/PBT offers excellent temperature resistance, with a heat deflection temperature of 138°C at a test thickness of 6 mm and a test pressure of 0.45 MPa. Additionally, it achieves UL94 V-0 flame retardancy at a test thickness of just 0.63 mm. It is ideal for manufacturing products that require effective heat dissipation or generate high heat.
  • Excellent impact resistance. PBT is a relatively brittle material with a notched impact strength of only 3–5 kJ/m². By blending PC and PBT, Valox 357 effectively preserves the excellent properties of PBT while simultaneously enhancing the material’s impact resistance. In a test environment at 23°C, the notched Izod impact strength is 534 J/m, which is significantly higher than that of standard PBT materials, making it suitable for use in power adapters that require impact resistance.
  • High insulation performance. Sabic Valox 357 PC/PBT blend material offers insulation properties comparable to those of PBT, with a volume resistivity of 1.2E+16, making it suitable for applications with high insulation requirements, such as switches and cable reels.

Why choose Baiyou as Sabic Valox 357 PC/PBT supplier?

  • Leading polycarbonate and butylene terephthalate blend material supplier (PC/PBT alloy material) , 20+ years of experience in plastic product manufacturing and chemical raw material import and export
  • Fastest Arrival, with warehouses in multiple ports
  • 1,000+ types of resins are available, and we have cooperated with large petrochemical groups for 30+ years
  • Free Samples for production testing
  • Wholesale price, even a piece of goods is based on the wholesale price
 Key Attributes 
Sabic Valox PC+PBT
Product information
Manufacturer
Saudi Basic Industry Corporation
Part Marking Code
>PC/PBT material<
Material Shape
PC+PBT Pellets
Process
Injection molding
Features
·Heat resistant ·Flame retardant ·Good insulated
Application
·Electrical switches ·Electrical equipment enclosures
Physical property
Standard
Value
Unit
Specific gravity
ASTM D792
1.34
g/cm³
Specific volume
ASTM D792
0.75
cm³/g
Water absorption, 23℃ 24hrs
ASTM D570
0.08
%
Moisture absorption, 23℃ 50% RH 24hrs
ASTM D570
0.08
%
Mold shrinkage flow, 3.2mm
Internal method
1-1.4
%
Mold shrinkage flow, 0.75-2.3mm
Internal method
0.8-1.1
%
Mold shrinkage flow, 2.3-4.6mm
Internal method
1-1.4
%
Mold shrinkage xflow, 0.75-2.3mm
Internal method
0.9-1.3
%
Mold shrinkage xflow, 2.3-4.6mm
Internal method
1.2=1.6
%
Melt flow rate, 250 ℃ 5kg
ASTM D1238
9.6
g/10min
Density
ISO 1183
1.34
g/cm³
Water absorption, 23℃ saturated
ISO 62-1
0.5
%
Moisture absorption. 23℃ 50% RH
ISO 62
0.15
%
Melt volume rate,MVR at 250℃/5.0 kg
ISO 62
8
g/10min
Mechanical behavior
Standard
Value
Unit
Tensile stress yield, Type Ⅰ, 50mm/min
ASTM D638
48
MPa
Tensile stress break, Type Ⅰ, 50mm/min
ASTM D638
45
MPa
Tensile strain yield, Type Ⅰ, 50mm/min
ASTM D638
5
%
Tensile strain break, Type Ⅰ, 50mm/min
ASTM D638
110
%
Tensile modulus, 5mm/min
ASTM D638
2020
MPa
Flexural stress, yield, 1.3mm/min 50 mm span
ASTM D790
83
MPa
Flexural stress, break, 1.3mm/min 50 mm span
ASTM D790
83
MPa
Flexural modulus, 1.3mm/min 50 mm span
ASTM D790
2060
MPa
Hardness Rockwell (R)
ASTM D785
117
Impact
Standard
Value
Unit
Izod impact, unnotched, 23℃
ASTM D4812
NB
J/m
Izod impact, notched, 23℃
ASTM D256
534
J/m
Izod impact, notched, -30℃
ASTM D256
153
J/m
Gardner 23℃
ASTM D3029
43
J
Modified gardner 23℃
ASTM D3029
43
J
Instrumented dart impact total energy, 23℃
ASTM D3763
35
J
Izod impact, notched 80*10*4 +23℃
ISO 180/1A
45
kJ/㎡
Izod impact, notched 80*10*4 -30℃
ISO 180/1A
10
kJ/㎡
Izod impact, unnotched 80*10*4 +23℃
ISO 180/1A
NB
kJ/㎡
Izod impact, unnotched 80*10*4 -30℃
ISO 180/1A
NB
kJ/㎡
Thermal
Standard
Value
Unit
Vicat softening temperature rate B/50 
ASTM E831
134
℃
Vicat softening temperature rate B/50 
ISO 306
145
℃
Vicat softening temperature rate B/120
ISO 306
150
℃
Heat deflection temperature (HDT) 0.45MPa 6.4mm unannealed 
ASTM D648
138
℃
Heat deflection temperature (HDT) 1.82MPa 6.4mm unannealed
ASTM D648
99
℃
Relative temperature index, ElecUL746B
120
℃
Relative temperature index, Mech w/impactUL746B
120
℃
Relative temperature index, Mech w/o impactUL746B
120
℃
Electrical 
Standard
Value
Unit
Volume resistivity
ASTM D257
＞1.2E+16
Ω.cm
Dielectric strength, in air, 3.2mm
ASTM D149
18.5
kV/mm
Dielectric strength, in oil, 1.6mm
ASTM D149
25.2
kV/mm
Dielectric strength, in air, 3.2mm
ASTM D149
18.5
kV/mm
Relative permittivity, 100 Hz
ASTM D150
3.2
Relative permittivity, 1 MHz
ASTM D150
3.2
Dissipation factor, 100 Hz
ASTM D150
0.003
Dissipation facctor, 1 MHz
ASTM D150
0.03
Arc resistance, tungsten (PLC)
ASTM D495
6
Hot wire ignition (PLC)
UL 746A
2
High voltage arc track rate (PLC)
UL 746A
3
High ampere arc ign, surface (PLC)
UL 746A
2
Comparative tracking index (UL) (PLC)
UL 746A
2
Flame characteristics
Standard
Value
Unit
UL recognized, 0.46mm
UL94
HB
UL recognized, 063mm
UL94
V-0
UL recognized, 3.0mm
UL94
5va
Oxygen index (LOI)
ASTM D2863
30
%
UV- light, water exposure, immersion
UL 746C
F2
Injection molding
Standard
Value
Unit
Drying temperature
120
℃
Drying time
3-4
hrs
Maximum moisture content
0.02
%
Melt temperature
250-265
℃
Nozzle temperature
245-260
℃
Front - Zone 3 temperate
250-265
℃
Middle - Zone 2 temperature
245-260
℃
Rear - Zone 1 temperature
240-255
℃
Mold temperature
50-75
℃
Back pressure
0.3=0.7
MPa
Screw speed
50-100
rpm
Mold temperature
50-75
℃
Short to cylinder size
40-80
%
Vent depth
0.025-0.038
℃
⚠️The technical data sheet (TDS) of Sabic Valox 357 PC/PBT alloy material from Saudi basic industry, if there are differences, please refer to the official website of Sabic.
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Quantity (tonnes)
1-100
100-300
>300
Lead time (days)
7-10
10-15
To be negotiated