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Ensinger PEI

Celanese Crastin® FR684NH1 BK591 PBT-GF25FR(40)
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), 30% Glass Fiber Filled; Polybutylene Terephthalate (PBT), Glass Fiber Filled, Flame Retardant
Material Notes: 25% Glass Reinforced, Flame Retardant, Non-Halogenated, Polybutylene Terephthalate

Former DuPont product acquired by Celanese in 2022.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 1.52 g/cc0.0549 lb/in³DS; ISO 1183
Water Absorption 0.25 %
@Thickness 2.00 mm		0.25 %
@Thickness 0.0787 in		DS; Sim. to ISO 62
Moisture Absorption 0.100 %
@Thickness 2.00 mm		0.100 %
@Thickness 0.0787 in		DS; Sim. to ISO 62
Linear Mold Shrinkage, Flow 0.0050 cm/cm0.0050 in/inISO 294-4, 2577
Linear Mold Shrinkage, Transverse 0.013 cm/cm0.013 in/inISO 294-4, 2577
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength at Break 100 MPa14500 psiISO 527-1/-2
Elongation at Break 2.3 %2.3 %ISO 527-1/-2
Tensile Modulus 11.1 GPa1610 ksiISO 527-1/-2
Flexural Strength 164 MPa23800 psiISO 178
Flexural Modulus 11.2 GPa1620 ksiISO 178
Poissons Ratio 0.330.33
Izod Impact, Notched (ISO)  7.00 kJ/m²
@Temperature -30.0 °C		3.33 ft-lb/in²
@Temperature -22.0 °F		ISO 180/1A
 7.00 kJ/m²
@Temperature 23.0 °C		3.33 ft-lb/in²
@Temperature 73.4 °F		ISO 180/1A
Charpy Impact Unnotched  3.90 J/cm²
@Temperature 23.0 °C		18.6 ft-lb/in²
@Temperature 73.4 °F		ISO 179/1eU
 4.20 J/cm²
@Temperature -30.0 °C		20.0 ft-lb/in²
@Temperature -22.0 °F		ISO 179/1eU
Charpy Impact, Notched  0.640 J/cm²
@Temperature -30.0 °C		3.05 ft-lb/in²
@Temperature -22.0 °F		ISO 179/1eA
 0.700 J/cm²
@Temperature 23.0 °C		3.33 ft-lb/in²
@Temperature 73.4 °F		ISO 179/1eA
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity >= 1.00e+15 ohm-cm>= 1.00e+15 ohm-cmDS; IEC 62631-3-1
Surface Resistance >= 1.00e+15 ohm>= 1.00e+15 ohmDS; IEC 62631-3-2
Dielectric Strength 35.0 kV/mm889 kV/inIEC 60243-1
Comparative Tracking Index 600 V600 VIEC 60112
 >= 600 V>= 600 VPLC 0; UL 746A
 
Thermal PropertiesMetricEnglishComments
CTE, linear, Parallel to Flow  20.0 µm/m-°C
@Temperature 55.0 - 160 °C		11.1 µin/in-°F
@Temperature 131 - 320 °F		DS; ISO 11359-1/-2
 23.0 µm/m-°C
@Temperature -40.0 - 23.0 °C		12.8 µin/in-°F
@Temperature -40.0 - 73.4 °F		DS; ISO 11359-1/-2
 29.0 µm/m-°C
@Temperature 23.0 - 55.0 °C		16.1 µin/in-°F
@Temperature 73.4 - 131 °F		DS; ASTM E 831
CTE, linear, Transverse to Flow 66.0 µm/m-°C
@Temperature -40.0 - 23.0 °C		36.7 µin/in-°F
@Temperature -40.0 - 73.4 °F		DS; ISO 11359-1/-2
Melting Point 223 °C433 °F10°C/min; ISO 11357-1/-3
Deflection Temperature at 1.8 MPa (264 psi) 205 °C401 °FDS; ISO 75-1/-2
Glass Transition Temp, Tg 55.0 °C131 °F10°C/min; ISO 11357-1/-2
Flammability, UL94  V-0
@Thickness 0.750 mm		V-0
@Thickness 0.0295 in		IEC 60695-11-10
 V-0
@Thickness 1.50 mm		V-0
@Thickness 0.0591 in		IEC 60695-11-10
Oxygen Index 40 %40 %DS; ISO 4589-1/-2
Glow Wire Ignition Temperature  750 °C
@Thickness 0.750 mm		1380 °F
@Thickness 0.0295 in		IEC 60695-2-13
 750 °C
@Thickness 1.50 mm		1380 °F
@Thickness 0.0591 in		IEC 60695-2-13
 800 °C
@Thickness 3.00 mm		1470 °F
@Thickness 0.118 in		IEC 60695-2-13
 
Processing PropertiesMetricEnglishComments
Melt Temperature 250 °C482 °FOptimum, Injection
 240 - 260 °C464 - 500 °FRange, Injection
Mold Temperature 80.0 °C176 °FOptimum, Injection
 30.0 - 130 °C86.0 - 266 °FInjection
Ejection Temperature 170 °C338 °FInjection
Drying Temperature 120 °C248 °FInjection
Dry Time 2.00 - 4.00 hour2.00 - 4.00 hourInjection, Dehumidified Dryer
Moisture Content <= 0.040 %<= 0.040 %Injection
Hold Pressure >= 60.0 MPa>= 8700 psiInjection
 
Descriptive Properties
AdditivesFlame retardant
 Non-halogenated/Red phosphorous free flame retardant
Back pressureAs low as possible
Drying RecommendedyesInjection
Part Marking Code>PBT-GF25FR(40)<ISO 11469
PolymerPBT-GF25 FR(40)
Processing Hold Pressure Time (s/mm)3Injection
Resin IdentificationPBT-GF25FR(40)ISO 1043

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PDSX5015o / 254322

Proto3000 – 3D Engineering Solutions




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