Hexion Bakelite™ PF 4155 Phenolic Formaldehyde Resin, Resistant to High Temperatures, Improved Electrical Properties, Low Shrinkage, High Mechanical Strength

Category	Polymer , Thermoset , Filled/Reinforced Thermoset , Phenolic
Manufacturer
Trade Name
Port	Ningbo port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Hexion Bakelite™ PF 4155 Phenolic Formaldehyde Resin, Resistant to High Temperatures, Improved Electrical Properties, Low Shrinkage, High Mechanical Strength.pdf
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Material Notes:

Phenolic molding compound, inorganically filled, glass fiber reinforced, good media and temperature resistance. Conditioned Cu-adhesion.Application areas: Commutators (fuel pumps, actuators, starter motors, HVAC motors, fan motors, window lift motors, ABS, wiper motors, garden appliances, household appliances, power tools, universal motors).Information provided by Bak AGBak AG became a part of Hexion in 2005.

Physical Properties	Metric	English	Comments
Density	1.78 g/cc	0.0643 lb/in³	ISO 1183
Apparent Bulk Density	0.730 g/cc	0.0264 lb/in³	ISO 60
Linear Mold Shrinkage, Flow	-0.000100 cm/cm	-0.000100 in/in	Compression molding; ISO 2577
	0.0010 cm/cm	0.0010 in/in	Injection molding; ISO 2577

Mechanical Properties	Metric	English	Comments
Ball Indentation Hardness	350 MPa	50800 psi	H 961/30; ISO 2039/P1
Flexural Strength	125 MPa	18100 psi	2 mm/min; ISO 178
Flexural Modulus	13.5 GPa	1960 ksi	ISO 178
Compressive Strength	200 MPa	29000 psi	Test specimen flat tested; ISO 604
Charpy Impact Unnotched	0.950 J/cm² @Temperature 23.0 °C	4.52 ft-lb/in² @Temperature 73.4 °F	ISO 179-1/2 eU
Charpy Impact, Notched	0.300 J/cm² @Temperature 23.0 °C	1.43 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
	240 °C	464 °F	< 50 hours; IEC 60216-P1
Deflection Temperature at 8.0 MPa	160 °C	320 °F	ISO 75-2
Shrinkage	0.0500 % @Temperature 110 °C	0.0500 % @Temperature 230 °F	Compression molding; ISO 2577
	0.100 % @Temperature 110 °C, Time 605000 sec	0.100 % @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	6.0 @Frequency 100 Hz	6.0 @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	0.050 @Frequency 100 Hz	0.050 @Frequency 100 Hz	IEC 60250
Comparative Tracking Index	175 V	175 V	Test liquid A; IEC 60112

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	13 mg	ISO 62, 24 hours at 23°C
Reserves by Peak Temperature	Very High
Thermal Expansion	Very Slight

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