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Ensinger PEI

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SABIC VALOX™ FR 771 PBT (Europe)
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT)
Material Notes: VALOX 771 is a 35% mineral/glass filled, flame retardant Polybutylene Terephthalate (PBT) injection moldable grade. It has excellent chemical resistance and a UL94V0@0.75 flame rating and 5VA@2.0mm. This grade also has a CTI of 0 and is a good candidate for applications that may see electrical arcing.

Information provided by SABIC
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Physical PropertiesOriginal ValueComments
Specific Gravity 1.70 g/ccASTM D792
Density 1.70 g/ccISO 1183
Filler Content 35 %ASTM D229
Water Absorption 0.94 %23°C/sat; ISO 62
Moisture Absorption 0.0900 %23°C / 50% RH; ISO 62
Viscosity 140 cP
@Shear Rate 1500 1/s,
Temperature 260 °C		melt; ISO 11443
Linear Mold Shrinkage, Flow 0.0030 - 0.0060 cm/cmSABIC method
Linear Mold Shrinkage, Transverse 0.0040 - 0.010 cm/cmSABIC method
Melt Flow 8.0 g/10 min
@Load 5.00 kg,
Temperature 250 °C		cm³/10 min; ISO 1133
 16 g/10 min
@Load 5.00 kg,
Temperature 265 °C		cm³/10 min; ISO 1133
 20 g/10 min
@Load 5.00 kg,
Temperature 266 °C		ASTM D1238
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell R 111ISO 2039-2
Ball Indentation Hardness 120 MPaISO 2039-1
Tensile Strength at Break 85.0 MPa5 mm/min; ISO 527
 85.0 MPa5 mm/min; ASTM D638
Tensile Strength, Yield 85.0 MPa5 mm/min; ISO 527
 85.0 MPa5 mm/min; ASTM D638
Elongation at Break 2.0 %5 mm/min; ASTM D638
 2.0 %5 mm/min; ISO 527
Elongation at Yield 2.0 %5 mm/min; ASTM D638
 2.0 %5 mm/min; ISO 527
Tensile Modulus 9500 MPa5 mm/min; ASTM D638
 9700 MPa1mm/min; ISO 527
Flexural Strength 110 MPabrk, 1.3 mm/min, 50 mm span; ASTM D790
 120 MPa2 mm/min; break; ISO 178
Flexural Yield Strength 110 MPa1.3 mm/min, 50 mm span; ASTM D790
 120 MPa2 mm/min; ISO 178
Flexural Modulus 7900 MPa1.3 mm/min, 50 mm span; ASTM D790
 8400 MPa2 mm/min; ISO 178
Flexural Strain at Break 2.0 %2 mm/min; ISO 178
Izod Impact, Notched 52.0 J/mASTM D256
 51.0 J/m
@Temperature -30.0 °C		ASTM D256
 52.0 J/m
@Temperature 0.000 °C		ASTM D256
Izod Impact, Unnotched 390 J/mASTM D4812
 390 J/m
@Temperature -30.0 °C		ASTM D4812
Izod Impact, Notched (ISO) 5.00 kJ/m²80*10*4; ISO 180/1A
 5.00 kJ/m²
@Temperature 0.000 °C		80*10*4; ISO 180/1A
 5.00 kJ/m²
@Temperature -30.0 °C		80*10*4; ISO 180/1A
Izod Impact, Unnotched (ISO) 25.0 kJ/m²80*10*4; ISO 180/1U
 25.0 kJ/m²
@Temperature -30.0 °C		80*10*4; ISO 180/1U
Charpy Impact Unnotched 29.0 kJ/m²ISO 179/2C
 45.0 kJ/m²Edgew 80*10*4 sp=62mm; ISO 179/1eU
 20.0 kJ/m²
@Temperature -30.0 °C		Edgew 80*10*4 sp=62mm; ISO 179/1eU
 29.0 kJ/m²
@Temperature -30.0 °C		ISO 179/2C
Charpy Impact, Notched 4.00 kJ/m²Edgew 80*10*4 sp=62mm; ISO 179/1eA
 6.00 kJ/m²ISO 179/2C
 4.00 kJ/m²
@Temperature -30.0 °C		Edgew 80*10*4 sp=62mm; ISO 179/1eA
 6.00 kJ/m²
@Temperature -30.0 °C		ISO 179/2C
Taber Abrasion, mg/1000 Cycles 55CS-17, 1 kg; SABIC method
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+15 ohm-cmASTM D257
 >= 1.00e+15 ohm-cmIEC 60093
Surface Resistance >= 1.00e+15 ohmROA; IEC 60093
Dielectric Constant 3.1
@Frequency 1e+6 Hz		IEC 60250
 3.3
@Frequency 50.0 - 60.0 Hz		IEC 60250
Dielectric Strength 20.0 kV/mm
@Thickness 3.20 mm		in oil; IEC 60243-1
 23.0 kV/mm
@Thickness 1.60 mm		in oil; IEC 60243-1
Dissipation Factor 0.0095
@Frequency 50.0 - 60.0 Hz		IEC 60250
 0.0128
@Frequency 1e+6 Hz		IEC 60250
Arc Resistance 180 - 240 secASTM D495
Comparative Tracking Index 175 VIEC 60112
 600 VIEC 60112
Hot Wire Ignition, HWI >= 120 secUL 746A
High Amp Arc Ignition, HAI >= 120 arcsUL 746A
High Voltage Arc-Tracking Rate, HVTR 0.000 - 10.0 mm/minUL 746A
 
Thermal PropertiesOriginal ValueComments
CTE, linear, Parallel to Flow 22.5 µm/m-°C
@Temperature -40.0 - 40.0 °C		ISO 11359-2
 30.0 µm/m-°C
@Temperature 23.0 - 80.0 °C		ISO 11359-2
 30.1 µm/m-°C
@Temperature 23.0 - 150 °C		ISO 11359-2
CTE, linear, Transverse to Flow 59.0 µm/m-°C
@Temperature -40.0 - 40.0 °C		ISO 11359-2
 95.0 µm/m-°C
@Temperature 23.0 - 80.0 °C		ISO 11359-2
 135 µm/m-°C
@Temperature 23.0 - 150 °C		ISO 11359-2
Hot Ball Pressure Test 125 °CIEC 60695-10-2
Deflection Temperature at 0.46 MPa (66 psi) 215 °CEdgew 120*10*4 sp=100mm; ISO 75/Be
 220 °CFlatw 80*10*4 sp=64mm; ISO 75/Bf
 220 °C
@Thickness 3.20 mm		unannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 190 °CFlatw 80*10*4 sp=64mm; ISO 75/Af
 190 °C1.8 MPa Edgew 120*10*4 sp=100mm; ISO 75/Ae
 203 °C
@Thickness 3.20 mm		unannealed; ASTM D648
Vicat Softening Point 190 °CRate B/50; ASTM D1525
 190 °CRate B/120; ISO 306
 190 °CRate B/50; ISO 306
 220 °CRate A/50; ISO 306
 220 °CRate A/50; ASTM D1525
UL RTI, Electrical 120 °CUL 746B
UL RTI, Mechanical with Impact 125 °CUL 746B
UL RTI, Mechanical without Impact 140 °CUL 746B
Flammability, UL94 V-2
@Thickness 0.620 mm		UL 94
 V-0
@Thickness 0.750 mm		UL 94
 5VA
@Thickness 2.00 mm		UL 94
Oxygen Index 31 %ISO 4589
Glow Wire Test 675 °C
@Thickness 2.00 mm		IEC 60695-2-13
 675 °C
@Thickness 1.00 mm		IEC 60695-2-13
 775 °C
@Thickness 3.00 mm		IEC 60695-2-13
 960 °C
@Thickness 1.00 mm		IEC 60695-2-12
 
Processing PropertiesOriginal ValueComments
Processing Temperature 40.0 - 60.0 °CHopper Temperature
Nozzle Temperature 240 - 260 °CInjection Molding
Zone 1 230 - 245 °C
Zone 2 240 - 255 °C
Zone 3 245 - 265 °C
Melt Temperature 250 - 270 °C
Mold Temperature 40.0 - 100 °C
Drying Temperature 110 - 120 °CInjection Molding
Dry Time 2.00 - 4.00 hourInjection Molding
Moisture Content 0.020 %

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PSABI10322 / 243789

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