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Master Bond adhesives

SABIC VALOX™ FR 357 PBT (Americas)
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT)
Material Notes: VALOX 357 is an unreinforced, impact modified flame retardant Polybutylene Terephthalate/Polycarbonate (PBT/PC) injection moldable grade. It has excellent chemical resistance and a UL94V0@0.63mm and 5VA@3.0mm flame rating. This is a good candidate for applications in the electrical industry including bobbins, switches, and enclosures.

Information provided by SABIC
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Physical PropertiesMetricEnglishComments
Specific Gravity 1.33 g/cc1.33 g/ccASTM D792
 1.34 g/cc1.34 g/ccASTM D792
Density 1.34 g/cc0.0484 lb/in³ISO 1183
Water Absorption 0.080 %0.080 %24 hours; ASTM D570
 0.50 %0.50 %23°C/sat; ISO 62
Moisture Absorption 0.0800 %0.0800 %50% RH, 24 hrs; ASTM D570
 0.150 %0.150 %23°C / 50% RH; ISO 62
Linear Mold Shrinkage, Flow  0.0080 - 0.011 cm/cm
@Thickness 0.750 - 2.30 mm		0.0080 - 0.011 in/in
@Thickness 0.0295 - 0.0906 in		SABIC method
 0.010 - 0.014 cm/cm
@Thickness 3.20 mm		0.010 - 0.014 in/in
@Thickness 0.126 in		SABIC method
 0.010 - 0.014 cm/cm
@Thickness 2.30 - 4.60 mm		0.010 - 0.014 in/in
@Thickness 0.0906 - 0.181 in		SABIC method
Linear Mold Shrinkage, Transverse  0.0090 - 0.013 cm/cm
@Thickness 0.750 - 2.30 mm		0.0090 - 0.013 in/in
@Thickness 0.0295 - 0.0906 in		SABIC method
 0.012 - 0.016 cm/cm
@Thickness 2.30 - 4.60 mm		0.012 - 0.016 in/in
@Thickness 0.0906 - 0.181 in		SABIC method
Melt Flow  8.0 g/10 min
@Load 5.00 kg,
Temperature 250 °C		8.0 g/10 min
@Load 11.0 lb,
Temperature 482 °F		cm³/10 min; ISO 1133
 9.6 g/10 min
@Load 5.00 kg,
Temperature 250 °C		9.6 g/10 min
@Load 11.0 lb,
Temperature 482 °F		ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell R 117117ASTM D785
Tensile Strength at Break 40.0 MPa5800 psi50 mm/min; ISO 527
 45.0 MPa6530 psi50 mm/min; ASTM D638
Tensile Strength, Yield 48.0 MPa6960 psi50 mm/min; ASTM D638
 50.0 MPa7250 psi50 mm/min; ISO 527
Elongation at Break 30 %30 %50 mm/min; ISO 527
 110 %110 %50 mm/min; ASTM D638
Elongation at Yield 5.0 %5.0 %50 mm/min; ASTM D638
 5.0 %5.0 %50 mm/min; ISO 527
Tensile Modulus 2.02 GPa293 ksi5 mm/min; ASTM D638
 2.20 GPa319 ksi1mm/min; ISO 527
Flexural Strength 83.0 MPa12000 psibrk, 1.3 mm/min, 50 mm span; ASTM D790
Flexural Yield Strength 73.0 MPa10600 psi2 mm/min; ISO 178
 83.0 MPa12000 psi1.3 mm/min, 50 mm span; ASTM D790
Flexural Modulus 2.00 GPa290 ksi2 mm/min; ISO 178
 2.06 GPa299 ksi1.3 mm/min, 50 mm span; ASTM D790
Izod Impact, Notched 5.34 J/cm10.0 ft-lb/inASTM D256
 1.53 J/cm
@Temperature -30.0 °C		2.87 ft-lb/in
@Temperature -22.0 °F		ASTM D256
Izod Impact, Unnotched NBNBASTM D4812
Izod Impact, Notched (ISO) 45.0 kJ/m²21.4 ft-lb/in²80*10*4; ISO 180/1A
 10.0 kJ/m²
@Temperature -30.0 °C		4.76 ft-lb/in²
@Temperature -22.0 °F		80*10*4; ISO 180/1A
Izod Impact, Unnotched (ISO) NBNB80*10*4; ISO 180/1U
 NB
@Temperature -30.0 °C		NB
@Temperature -22.0 °F		80*10*4; ISO 180/1U
Charpy Impact Unnotched NBNBEdgew 80*10*4 sp=62mm; ISO 179/1eU
Charpy Impact, Notched 4.50 J/cm²21.4 ft-lb/in²Edgew 80*10*4 sp=62mm; ISO 179/1eA
Gardner Impact 43.0 J31.7 ft-lbASTM D3029
 43.0 J31.7 ft-lbASTM D3029
Dart Drop, Total Energy 35.0 J25.8 ft-lbASTM D3763
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity >= 1.20e+16 ohm-cm>= 1.20e+16 ohm-cmASTM D257
Dielectric Constant  3.2
@Frequency 100 Hz		3.2
@Frequency 100 Hz		ASTM D150
 3.2
@Frequency 1e+6 Hz		3.2
@Frequency 1e+6 Hz		ASTM D150
Dielectric Strength  18.5 kV/mm
@Thickness 3.20 mm		470 kV/in
@Thickness 0.126 in		in air; ASTM D149
 18.5 kV/mm
@Thickness 3.20 mm		470 kV/in
@Thickness 0.126 in		in oil; ASTM D149
 25.2 kV/mm
@Thickness 1.60 mm		640 kV/in
@Thickness 0.0630 in		in oil; ASTM D149
Dissipation Factor  0.0030
@Frequency 100 Hz		0.0030
@Frequency 100 Hz		ASTM D150
 0.030
@Frequency 1e+6 Hz		0.030
@Frequency 1e+6 Hz		ASTM D150
Arc Resistance 60 - 120 sec60 - 120 secASTM D495
Comparative Tracking Index 250 - 400 V250 - 400 VUL 746A
Hot Wire Ignition, HWI 30 - 60 sec30 - 60 secUL 746A
High Amp Arc Ignition, HAI 15 - 30 arcs15 - 30 arcsUL 746A
High Voltage Arc-Tracking Rate, HVTR 80.0 - 150 mm/min3.15 - 5.91 in/minUL 746A
 
Thermal PropertiesMetricEnglishComments
CTE, linear, Parallel to Flow  72.0 µm/m-°C
@Temperature -40.0 - 40.0 °C		40.0 µin/in-°F
@Temperature -40.0 - 104 °F		ISO 11359-2
 91.8 µm/m-°C
@Temperature -40.0 - 40.0 °C		51.0 µin/in-°F
@Temperature -40.0 - 104 °F		ASTM E831
 124 µm/m-°C
@Temperature 60.0 - 138 °C		68.9 µin/in-°F
@Temperature 140 - 280 °F		ASTM E831
CTE, linear, Transverse to Flow  84.0 µm/m-°C
@Temperature -40.0 - 40.0 °C		46.7 µin/in-°F
@Temperature -40.0 - 104 °F		ISO 11359-2
 84.0 µm/m-°C
@Temperature -40.0 - 40.0 °C		46.7 µin/in-°F
@Temperature -40.0 - 104 °F		ASTM E831
Hot Ball Pressure Test 125 °C257 °FIEC 60695-10-2
Deflection Temperature at 0.46 MPa (66 psi) 125 °C257 °FFlatw 80*10*4 sp=64mm; ISO 75/Bf
 135 °C
@Thickness 3.20 mm		275 °F
@Thickness 0.126 in		unannealed; ASTM D648
 138 °C
@Thickness 6.40 mm		280 °F
@Thickness 0.252 in		unannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 84.0 °C183 °FFlatw 80*10*4 sp=64mm; ISO 75/Af
 98.0 °C
@Thickness 3.20 mm		208 °F
@Thickness 0.126 in		unannealed; ASTM D648
 99.0 °C
@Thickness 6.40 mm		210 °F
@Thickness 0.252 in		unannealed; ASTM D648
Vicat Softening Point 134 °C273 °FRate B/50; ASTM D1525
 145 °C293 °FRate B/50; ISO 306
 150 °C302 °FRate B/120; ISO 306
UL RTI, Electrical 120 °C248 °FUL 746B
UL RTI, Mechanical with Impact 120 °C248 °FUL 746B
UL RTI, Mechanical without Impact 140 °C284 °FUL 746B
Flammability, UL94  HB
@Thickness 0.460 mm		HB
@Thickness 0.0181 in		UL 94
 V-0
@Thickness 0.630 mm		V-0
@Thickness 0.0248 in		UL 94
 5VA
@Thickness 3.00 mm		5VA
@Thickness 0.118 in		UL 94
Oxygen Index 30 %30 %ASTM D2863
Glow Wire Test  725 °C
@Thickness 3.00 mm		1340 °F
@Thickness 0.118 in		IEC 60695-2-13
 750 °C
@Thickness 2.00 mm		1380 °F
@Thickness 0.0787 in		IEC 60695-2-13
 775 °C
@Thickness 1.00 mm		1430 °F
@Thickness 0.0394 in		IEC 60695-2-13
 960 °C
@Thickness 1.00 mm		1760 °F
@Thickness 0.0394 in		IEC 60695-2-12
 
Processing PropertiesMetricEnglishComments
Nozzle Temperature 245 - 260 °C473 - 500 °FInjection Molding
Zone 1 240 - 255 °C464 - 491 °F
Zone 2 245 - 260 °C473 - 500 °F
Zone 3 250 - 265 °C482 - 509 °F
Melt Temperature 250 - 265 °C482 - 509 °F
Mold Temperature 50.0 - 75.0 °C122 - 167 °F
Drying Temperature 120 °C248 °FInjection Molding
Dry Time 3.00 - 4.00 hour3.00 - 4.00 hourInjection Molding
 12.0 hour12.0 hourCumulative; Injection Molding
Moisture Content 0.020 %0.020 %
Back Pressure 0.300 - 0.700 MPa43.5 - 102 psi
Shot Size 40 - 80 %40 - 80 %
Vent Depth 0.00250 - 0.00380 cm0.000984 - 0.00150 in
Screw Speed 50 - 100 rpm50 - 100 rpm
 
Descriptive Properties
UV-light, water exposure/immersionF2UL 746C

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

PSABI10314 / 243781




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