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Bakelite® PF 4041 Phenolic Formaldehyde Resin, Resistant to High Temperatures
Categories: Polymer; Thermoset; Filled/Reinforced Thermoset; Phenolic
Material Notes: Phenolic molding compound, glass fiber-reinforced and inorganically filled, elasticized. Very good heat resistance, very good mechanical properties, reduced mold shrinkage and post-shrinkage, good chemical resistance.

Applications: Grinding wheels.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 1.62 g/cc0.0585 lb/in³ISO 1183
Apparent Bulk Density 0.650 g/cc0.0235 lb/in³ISO 60
Linear Mold Shrinkage 0.0025 cm/cm0.0025 in/inInjection Molding. Post Shrinkage = 0.05%.; ISO 2577
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength 65.0 MPa9430 psiISO 527 - 1/2
Tensile Modulus 9.00 GPa1310 ksiISO 527 - 1/2
Flexural Strength 135 MPa19600 psiISO 178
Flexural Modulus 11.0 GPa1600 ksiISO 178
Charpy Impact Unnotched 1.20 J/cm²5.71 ft-lb/in²ISO 179-1 eU
Charpy Impact, Notched 0.350 J/cm²1.67 ft-lb/in²ISO 179-1eA
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+11 ohm-cm1.00e+11 ohm-cm
Surface Resistance 1.00e+10 ohm1.00e+10 ohm
Dielectric Constant 5.5
@Frequency 100 Hz		5.5
@Frequency 100 Hz
Dielectric Strength 29.5 kV/mm
@Thickness 1.00 mm		749 kV/in
@Thickness 0.0394 in		IEC 60243-P1
Dissipation Factor 0.10
@Frequency 100 Hz		0.10
@Frequency 100 Hz
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 8.0 MPa 165 °C329 °FISO 75-2
 
Processing PropertiesMetricEnglishComments
Feed Temperature 60.0 - 75.0 °C140 - 167 °FInjection molding
Nozzle Temperature 80.0 - 100 °C176 - 212 °FInjection molding
Melt Temperature 80.0 - 100 °C176 - 212 °FInjection molding
Mold Temperature 160 - 190 °C320 - 374 °FInjection molding
 160 - 190 °C320 - 374 °FCompression molding
Injection Pressure >= 15.0 MPa>= 2180 psiCompression and injection cavity mold pressure
Back Pressure 0.500 - 2.00 MPa72.5 - 290 psiInjection molding
Cure Time 0.167 - 0.333 min0.00278 - 0.00556 hourPer 1 mm of wall thickness, injection molding
 0.333 - 0.667 min0.00556 - 0.0111 hourPer 1 mm of wall thickness, compression molding
 
Descriptive Properties
Chromatic SpectrumAll Colors
Creep Rupture StrengthVery Good
Holding PressureApproximately 40-60% of injection pressure
Media ResistanceVery Good
Thermal ExpansionVery Slight
Water absorption (mg)1524h / 23°C

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.

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