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Hexion Bakelite™ PF 2874 Phenolic Formaldehyde Resin, Low Shrinkage, Improved Electrical Properties, UL Listed, High Mechanical Strength

Category Polymer , Thermoset , Filled/Reinforced Thermoset , Phenolic
Manufacturer Hexion
Trade Name Bakelite™
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Hexion Bakelite™ PF 2874 Phenolic Formaldehyde Resin, Low Shrinkage, Improved Electrical Properties, UL Listed, High Mechanical Strength.pdf
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Material Notes:
Phenolic molding compound, inorganically filled, glass fiber reinforced, increased mechanical strength, increased temperature stability, low water absorption, good dimensional stability, UL listed molding compound 0.75 mm/V-0 (BK). Application areas: Insulating flanges, automotive engine parts, steering housings, end plates for electrical motors, carbon brush holders, clamp boards, bobbins, cross bars, terminal boards, switches/regulator knobs, pulleys, impellers, pump parts.This product was origianlly produced by Bak AG, now a part of Hexion.
Physical Properties Metric English Comments
Density 1.57 g/cc
0.0567 lb/in³
ISO 1183
Apparent Bulk Density 0.700 g/cc
0.0253 lb/in³
ISO 60
Linear Mold Shrinkage, Flow 0.0019 cm/cm
0.0019 in/in
Compression molding; ISO 2577
0.0045 cm/cm
0.0045 in/in
Injection molding; ISO 2577
Mechanical Properties Metric English Comments
Ball Indentation Hardness 400 MPa
58000 psi
H 961/30; ISO 2039/P1
Tensile Strength at Break 65.0 MPa
9430 psi
5 mm/min; ISO 527 - 1/2
Tensile Modulus 10.5 GPa
1520 ksi
1 mm/min; ISO 527 - 1/2
Flexural Strength 125 MPa
18100 psi
2 mm/min; ISO 178
Flexural Modulus 10.5 GPa
1520 ksi
ISO 178
Compressive Strength 230 MPa
33400 psi
Test specimen flat tested; ISO 604
Charpy Impact Unnotched 0.900 J/cm²

@Temperature 23.0 °C
4.28 ft-lb/in²

@Temperature 73.4 °F
ISO 179-1/2 eU
Charpy Impact, Notched 0.200 J/cm²

@Temperature 23.0 °C
0.952 ft-lb/in²

@Temperature 73.4 °F
ISO 179-1/2 eA
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 170 °C
338 °F
<20000 hours; IEC 60216-P1
230 °C
446 °F
< 50 hours; IEC 60216-P1
Deflection Temperature at 8.0 MPa 155 °C
311 °F
ISO 75-2
UL RTI, Electrical 150 °C

@Thickness 0.750 mm
302 °F

@Thickness 0.0295 in
BK
UL RTI, Mechanical with Impact 150 °C

@Thickness 0.750 mm
302 °F

@Thickness 0.0295 in
BK
UL RTI, Mechanical without Impact 150 °C

@Thickness 0.750 mm
302 °F

@Thickness 0.0295 in
BK
Flammability, UL94 V-0

@Thickness 0.750 mm
V-0

@Thickness 0.0295 in
BK
Shrinkage 0.180 %

@Temperature 110 °C
0.180 %

@Temperature 230 °F
Compression molding; ISO 2577
0.250 %

@Temperature 110 °C,
Time 605000 sec
0.250 %

@Temperature 230 °F,
Time 168 hour
Injection molding; ISO 2577
Electrical Properties Metric English Comments
Volume Resistivity 1.00e+12 ohm-cm
1.00e+12 ohm-cm
IEC 60093
Surface Resistance 1.00e+11 ohm
1.00e+11 ohm
IEC 60093
Dielectric Constant 8.0

@Frequency 100 Hz
8.0

@Frequency 100 Hz
IEC 60250
Dielectric Strength 30.0 kV/mm

@Thickness 1.00 mm
762 kV/in

@Thickness 0.0394 in
IEC 60243-P1
Dissipation Factor 0.20

@Frequency 100 Hz
0.20

@Frequency 100 Hz
IEC 60250
Arc Resistance 130 - 135 sec
130 - 135 sec
ASTM D495
Comparative Tracking Index 175 V
175 V
Test liquid A; IEC 60112
Hot Wire Ignition, HWI >= 120 sec

@Thickness 0.750 mm
>= 120 sec

@Thickness 0.0295 in
BK
High Amp Arc Ignition, HAI >= 120 arcs

@Thickness 0.750 mm
>= 120 arcs

@Thickness 0.0295 in
BK
High Voltage Arc-Tracking Rate, HVTR 0.000 - 10.0 mm/min

@Thickness 3.00 mm
0.000 - 0.394 in/min

@Thickness 0.118 in
BK
Processing Properties Metric English Comments
Feed Temperature 60.0 - 75.0 °C
140 - 167 °F
Injection molding
Nozzle Temperature 80.0 - 100 °C
176 - 212 °F
Injection molding
Melt Temperature 80.0 - 100 °C
176 - 212 °F
Injection molding
Mold Temperature 160 - 190 °C
320 - 374 °F
Injection molding
160 - 190 °C
320 - 374 °F
Compression molding
Injection Pressure >= 15.0 MPa
>= 2180 psi
Compression and injection cavity mold pressure
Back Pressure 0.500 - 2.00 MPa
72.5 - 290 psi
Injection molding
Cure Time 0.167 - 0.333 min
0.00278 - 0.00556 hour
Per 1 mm of wall thickness, injection molding
0.333 - 0.667 min
0.00556 - 0.0111 hour
Per 1 mm of wall thickness, compression molding
Descriptive Properties Value Comments
Chromatic Spectrum All Colors
Creep Rupture Strength Very Good
Holding Pressure Approximately 40-60% of injection pressure
Media Resistance Very Good
Moisture Absorption 20 mg
ISO 62, 24 hours at 23°C
Reserves by Peak Temperature Very High
Thermal Expansion Very Slight
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