Pocan® BFN4231

25% Glass Reinforced, Injection Molding, Flame Retardant (halogen free)

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General Information

Pocan® is a high-quality brand of polybutylene terephthalate (PBT) and PBT blends crafted by Envalior. Pocan is known for its impressive resistance to heat and chemicals, outstanding electrical properties, strength and hardness. It is designed to cater to a wide range of industries, including automotive, electrical/electronics, lighting, household appliances, and sports & leisure.
Special features
General Document
Regulatory Affairs
  • Absence Declaration BNST2023-11-16
  • Absence Declaration DMF (2009/251/EC: Dimethylfumarate)2023-11-16
  • Absence Declaration ELV (2000/53/EC: Heavy metals)2024-02-15
  • Absence Declaration Nano Materials2023-11-16
  • Absence Declaration Ozone Depleting Chemicals2024-06-27
  • Absence Declaration PAH (Polycyclic Aromatic Hydrocarbons)2023-11-16
  • Absence Declaration PBT chemicals under TSCA section 6(h)2023-11-16
  • Absence Declaration POPs (Persistent Organic Pollutants)2024-09-04
  • Absence Declaration Phthalates (2005/84/EC: DEHP, DBP, BBP,DINP,DIDP, DNOP)2023-11-16
  • Absence Declaration Red Phosphorus2023-11-16
  • Conflict minerals declaration (EICC, GeSI)2024-05-15
  • Deforestation Statement, Regulation (EU) 2023/1115 (EUDR)2024-09-19
  • Packaging Declaration EU Decision 97/129/EC (labelling)2024-04-17
  • REACH Registration Statement2024-03-27
  • RoHS Statement (2011/65/EC: Heavy metals)2024-02-01
  • SVHC, REACH Annex XIV and –XVII Statement2024-09-12
  • 2024-05-16
Yellow Card
Processing technology
Injection Molding
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Rheological properties

Melt volume-flow rate
40
cm³/10min
Temperature
260
°C
Load
5
kg
Molding shrinkage (parallel)
0.5
%
Molding shrinkage (normal)
1.2
%

Mechanical properties

Tensile modulus
10000
MPa
Tensile modulus (-40°C)
10700
MPa
Tensile modulus (40°C)
7730
MPa
Tensile modulus (100°C)
4970
MPa
Tensile modulus (120°C)
4510
MPa
Tensile modulus (140°C)
4050
MPa
Tensile modulus (160°C)
3560
MPa
Tensile modulus (180°C)
3020
MPa
Tensile modulus (200°C)
2350
MPa
Stress at break
100
MPa
Strain at break
2
%
Flexural modulus
9800
MPa
Flexural strength
165
MPa
Flexural strain at flexural strength
2.4
%
Charpy impact strength (+23°C)
40
kJ/m²
Charpy impact strength (-30°C)
35
kJ/m²
Izod impact strength (+23°C)
36
kJ/m²
Izod impact strength (-30°C)
33
kJ/m²

Thermal properties

Melting temperature (10°C/min)
220
°C
Temp. of deflection under load (1.80 MPa)
210
°C
Temp. of deflection under load (0.45 MPa)
224
°C
Coeff. of linear therm. expansion (parallel)
0.3
E-4/°C
Coeff. of linear therm. expansion (normal)
0.9
E-4/°C
Burning Behav. at 0.75 mm nom. thickn.
V-0
class
Thickness tested
0.75
mm
Burning Behav. at 1.5 mm nom. thickn.
V-0
class
Thickness tested
1.5
mm
UL recognition
Yes
-
Burning Behav. at 3.0 mm nom. thickn.
V-0
class
Thickness tested
3
mm
UL recognition
Yes
-
Burning Behav. 5V at thickness h
5VA
class
Thickness tested
1.5
mm
UL recognition
Yes
-
Oxygen index
43.7
%
Ball pressure temperature
214
°C
Glow Wire Flammability Index GWFI
960
°C
GWFI (Thickness (1) tested)
0.4
mm
Glow Wire Flammability Index GWFI
960
°C
GWFI (Thickness (2) tested)
0.75
mm
Glow Wire Ignition Temperature GWIT
850
°C
GWIT (Thickness (1) tested)
0.4
mm
Glow Wire Ignition Temperature GWIT
775
°C
GWIT (Thickness (2) tested)
0.75
mm
Glow Wire Ignition Temperature GWIT
825
°C
GWIT (Thickness (3) tested)
1.5
mm
Glow Wire Ignition Temperature GWIT
850
°C
GWIT (Thickness (4) tested)
3
mm
Relative Temperature Index - electrical
140
°C
RTI electrical (Thickness (1) tested)
0.4
mm
Relative Temperature Index - electrical
150
°C
RTI electrical (Thickness (2) tested)
0.75
mm
Relative Temperature Index - with impact
140
°C
RTI with impact (Thickness (1) tested)
0.4
mm
Relative Temperature Index - with impact
150
°C
RTI with impact (Thickness (2) tested)
0.75
mm
Relative Temperature Index - without impact
150
°C
RTI without impact (Thickness (1) tested)
0.4
mm
Relative Temperature Index - without impact
155
°C
RTI without impact (Thickness (2) tested)
0.75
mm

Electrical properties

Relative permittivity (100Hz)
3.8
-
Relative permittivity (1 MHz)
3.7
-
Dissipation factor (100 Hz)
40
E-4
Dissipation factor (1 MHz)
140
E-4
Volume resistivity
>1E13
Ohm*m
Surface resistivity
>1E15
Ohm
Electric strength
35
kV/mm
Comparative tracking index
575
V
Comparative tracking index (PLC)
0
class
Inclined-Plane Tracking
1.5
kV

Other properties

Water absorption
0.5
%
Humidity absorption
0.1
%
Density
1520
kg/m³

Material specific properties

Drying temperature circulating air dryer
120
°C
Drying time circulating air dryer
4-8
h
Residual moisture content
0.00-0.02
%
Melt temperature (Tmin - Tmax)
250-265
°C
Mold temperature
70-90
°C
admissible residence time at Tmax
<5
min

JSON SPT

Melt volume-flow rate
40
cm³/10min
Temperature
260
°C
Load
5
kg
Molding shrinkage (parallel)
0.5
%
Molding shrinkage (normal)
1.2
%

Diagrams