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Master Bond adhesives

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SABIC VALOX™ FR 4521 PBT (Europe)
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT)

Material Notes: VALOX 4521 is a 20% glass filled, high flow, flame retardant Polybutylene Terephthalate (PBT) injection moldable grade. It has excellent chemical resistance and a UL94V0@0.75 flame rating and 5VA@2.0mm.

Information provided by SABIC

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.58 g/ccASTM D792
Density 1.58 g/ccISO 1183
Filler Content 20 %ASTM D229
Water Absorption 0.28 %23°C/sat; ISO 62
Moisture Absorption 0.0900 %23°C / 50% RH; ISO 62
Viscosity 95 cP
@Shear Rate 1500 1/s,
Temperature 260 °C
melt; ISO 11443
Linear Mold Shrinkage, Flow 0.0030 - 0.0070 cm/cmSABIC method
Linear Mold Shrinkage, Transverse 0.0060 - 0.0090 cm/cmSABIC method
Melt Flow 19 g/10 min
@Load 2.16 kg,
Temperature 250 °C
cm³/10 min; ISO 1133
 26 g/10 min
@Load 2.16 kg,
Temperature 250 °C
ISO 1133
 65 g/10 min
@Load 5.00 kg,
Temperature 250 °C
cm³/10 min; ISO 1133
 90 g/10 min
@Load 5.00 kg,
Temperature 265 °C
ASTM D1238
 95 g/10 min
@Load 5.00 kg,
Temperature 265 °C
cm³/10 min; ISO 1133
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell R 120ISO 2039-2
Ball Indentation Hardness 142 MPaISO 2039-1
Tensile Strength at Break 110 MPa5 mm/min; ISO 527
 110 MPa5 mm/min; ASTM D638
Tensile Strength, Yield 110 MPa5 mm/min; ASTM D638
 110 MPa5 mm/min; ISO 527
Elongation at Break 2.0 %5 mm/min; ASTM D638
 3.0 %5 mm/min; ISO 527
Elongation at Yield 2.0 %5 mm/min; ASTM D638
 2.0 %5 mm/min; ISO 527
Tensile Modulus 7800 MPa5 mm/min; ASTM D638
 8000 MPa1mm/min; ISO 527
Flexural Strength 155 MPabrk, 1.3 mm/min, 50 mm span; ASTM D790
 160 MPa2 mm/min; break; ISO 178
Flexural Yield Strength 155 MPa1.3 mm/min, 50 mm span; ASTM D790
 160 MPa2 mm/min; ISO 178
Flexural Modulus 6500 MPa1.3 mm/min, 50 mm span; ASTM D790
 7000 MPa2 mm/min; ISO 178
Flexural Strain at Break 3.0 %2 mm/min; ISO 178
Izod Impact, Notched 70.0 J/mASTM D256
 65.0 J/m
@Temperature -30.0 °C
ASTM D256
 70.0 J/m
@Temperature 0.000 °C
ASTM D256
Izod Impact, Unnotched 530 J/mASTM D4812
 470 J/m
@Temperature -30.0 °C
ASTM D4812
Izod Impact, Notched (ISO) 8.00 kJ/m²80*10*4; ISO 180/1A
 7.00 kJ/m²
@Temperature -30.0 °C
80*10*4; ISO 180/1A
 8.00 kJ/m²
@Temperature 0.000 °C
80*10*4; ISO 180/1A
Izod Impact, Unnotched (ISO) 35.0 kJ/m²80*10*4; ISO 180/1U
 30.0 kJ/m²
@Temperature -30.0 °C
80*10*4; ISO 180/1U
Charpy Impact Unnotched 30.0 kJ/m²Edgew 80*10*4 sp=62mm; ISO 179/1eU
 40.0 kJ/m²ISO 179/2C
 28.0 kJ/m²
@Temperature -30.0 °C
Edgew 80*10*4 sp=62mm; ISO 179/1eU
 30.0 kJ/m²
@Temperature -30.0 °C
ISO 179/2C
Charpy Impact, Notched 5.00 kJ/m²Edgew 80*10*4 sp=62mm; ISO 179/1eA
 8.00 kJ/m²ISO 179/2C
 5.00 kJ/m²
@Temperature -30.0 °C
Edgew 80*10*4 sp=62mm; ISO 179/1eA
 8.00 kJ/m²
@Temperature -30.0 °C
ISO 179/2C
 
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 3.3
@Frequency 50.0 - 60.0 Hz
IEC 60250
 3.4
@Frequency 1e+6 Hz
IEC 60250
 3.4
@Frequency 1e+6 Hz
ASTM D150
Dielectric Strength 20.0 kV/mm
@Thickness 3.20 mm
in oil; IEC 60243-1
 20.0 kV/mm
@Thickness 3.20 mm
in oil; ASTM D149
 25.0 kV/mm
@Thickness 1.60 mm
in oil; ASTM D149
 25.0 kV/mm
@Thickness 1.60 mm
in oil; IEC 60243-1
 37.0 kV/mm
@Thickness 0.800 mm
in oil; IEC 60243-1
 37.0 kV/mm
@Thickness 0.800 mm
in oil; ASTM D149
Dissipation Factor 0.0010
@Frequency 50.0 - 60.0 Hz
IEC 60250
 0.015
@Frequency 1e+6 Hz
ASTM D150
 0.015
@Frequency 1e+6 Hz
IEC 60250
Arc Resistance 120 - 180 secASTM D495
Comparative Tracking Index 275 VIEC 60112
 250 - 400 VUL 746A
Hot Wire Ignition, HWI >= 120 secUL 746A
High Amp Arc Ignition, HAI >= 120 arcsUL 746A
High Voltage Arc-Tracking Rate, HVTR >= 150 mm/minUL 746A
 
Thermal PropertiesOriginal ValueComments
CTE, linear, Parallel to Flow 20.0 µm/m-°C
@Temperature 23.0 - 150 °C
ISO 11359-2
 25.0 µm/m-°C
@Temperature 23.0 - 80.0 °C
ISO 11359-2
 25.0 µm/m-°C
@Temperature 23.0 - 150 °C
ASTM E831
 27.0 µm/m-°C
@Temperature -40.0 - 40.0 °C
ISO 11359-2
CTE, linear, Transverse to Flow 74.0 µm/m-°C
@Temperature -40.0 - 40.0 °C
ISO 11359-2
 120 µm/m-°C
@Temperature 23.0 - 80.0 °C
ISO 11359-2
 130 µm/m-°C
@Temperature 23.0 - 150 °C
ISO 11359-2
 180 µm/m-°C
@Temperature 23.0 - 150 °C
ASTM E831
Thermal Conductivity 0.270 W/m-KISO 8302
Hot Ball Pressure Test 125 °CIEC 60695-10-2
Deflection Temperature at 0.46 MPa (66 psi) 220 °CEdgew 120*10*4 sp=100mm; ISO 75/Be
 220 °CFlatw 80*10*4 sp=64mm; ISO 75/Bf
 218 °C
@Thickness 3.20 mm
unannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 205 °C1.8 MPa Edgew 120*10*4 sp=100mm; ISO 75/Ae
 207 °CFlatw 80*10*4 sp=64mm; ISO 75/Af
 205 °C
@Thickness 3.20 mm
unannealed; ASTM D648
Vicat Softening Point 206 °CRate B/50; ASTM D1525
 208 °CRate B/120; ISO 306
 210 °CRate B/50; ISO 306
 218 °CRate A/50; ASTM D1525
 220 °CRate A/50; ISO 306
UL RTI, Electrical 130 °CUL 746B
UL RTI, Mechanical with Impact 130 °CUL 746B
UL RTI, Mechanical without Impact 130 °CUL 746B
Flammability, UL94 V-0
@Thickness 0.750 mm
UL 94
 5VB
@Thickness 1.50 mm
UL 94
 5VA
@Thickness 2.00 mm
UL 94
Oxygen Index 29 %ISO 4589
Glow Wire Test 960 °C
@Thickness 3.20 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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PSABI10332 / 243799

Rulon Bearings

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