Pocan® BFN4221Z

Injection Molding, 20% Glass Fiber Reinforced, Flame Retardant (halogen free), Impact Modified

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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 Biocidal Products2025-11-21
  • 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 Chemicals and F-gasses2025-02-06
  • Absence Declaration PAH (Polycyclic Aromatic Hydrocarbons)2025-04-14
  • Absence Declaration PBT chemicals under TSCA section 6(h)2023-11-16
  • Absence Declaration PFAS2025-01-31
  • Absence Declaration POPs (Persistent Organic Pollutants)2025-10-21
  • Absence Declaration Phthalates (2005/84/EC: DEHP, DBP, BBP,DINP,DIDP, DNOP)2023-11-16
  • Absence Declaration Red Phosphorus2023-11-16
  • Compliance Statement Sanctions and Embargos2025-11-24
  • Conflict minerals declaration (EICC, GeSI)2025-10-21
  • Deforestation Statement, Regulation (EU) 2023/1115 (EUDR)2025-11-03
  • EMRT Statement2025-05-27
  • Micro Plastics Statement2025-09-22
  • Packaging Declaration EU Decision 97/129/EC (labelling)2024-04-17
  • Packaging, Packaging Waste (EU) 2025/40 and CONEG declaration2025-06-24
  • REACH Registration Statement2024-03-27
  • RoHS Statement (2011/65/EC: Heavy metals)2024-02-01
  • SVHC, REACH Annex XIV and –XVII Statement2025-11-06
Yellow Card
Processing technology
Injection Molding
Applications
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Rheological properties

Melt volume-flow rate
13
cm³/10min
Temperature
260
°C
Load
5
kg
Molding shrinkage (parallel)
0.6
%
Molding shrinkage (normal)
1.1
%

Mechanical properties

Tensile modulus
7300
MPa
Stress at break
85
MPa
Strain at break
2.9
%
Flexural modulus
7400
MPa
Flexural strength
145
MPa
Flexural strain at flexural strength
3.2
%
Charpy impact strength (+23°C)
45
kJ/m²
Charpy impact strength (-30°C)
45
kJ/m²
Charpy notched impact strength (+23°C)
7
kJ/m²
Charpy notched impact strength (-30°C)
6
kJ/m²
Puncture - maximum force (+23°C)
580
N
Puncture - maximum force (-30°C)
480
N
Puncture energy (+23°C)
2.3
J
Puncture energy (-30°C)
1.9
J

Thermal properties

Melting temperature (10°C/min)
220
°C
Temp. of deflection under load (1.80 MPa)
193
°C
Coeff. of linear therm. expansion (parallel)
0.3
E-4/°C
Coeff. of linear therm. expansion (normal)
1.2
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
-
Ball pressure temperature
205
°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
775
°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
750
°C
GWIT (Thickness (3) tested)
1.5
mm
Glow Wire Ignition Temperature GWIT
750
°C
GWIT (Thickness (4) tested)
3
mm

Electrical properties

Volume resistivity
9.7E13
Ohm*m
Surface resistivity
3.8E16
Ohm
Electric strength
30
kV/mm
Comparative tracking index
600
V
Comparative tracking index (PLC)
0
class
Inclined-Plane Tracking
1.5
kV

Other properties

Density
1460
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

Diagrams

Applications

Bus Bar/Terminal Block

Industry
Automotive
Material
  • •} Dimensional stability
  • •} UL94-V0
  • •} Extremely low moisture up-take
  • •} Thermal shock resistivity​
  • •} High and stable dielectric strength
  • •} Thermal oxidative resistance
  • •} Enhances zero emission mobility of BEV
}
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Capacitor Housing

Industry
Automotive
Material
  • •} UL 94-V0
  • •} Excellent insulation stability
  • •} Extremely low moisture uptake
  • •} High dimensional stability
  • •} Thermal shock resistivity
  • •} High creep resistance
  • •} Strong bonding with epoxy
}
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Capacitor Housing

Industry
Automotive
Material
  • •} UL 94-V0
  • •} Excellent insulation stability
  • •} Extremely low moisture uptake
  • •} High dimensional stability
  • •} Thermal shock resistivity
  • •} High creep resistance
  • •} Strong bonding with epoxy
}
More information