Bakelite® UP 802 Unsaturated Polyester Resin, High Surface Quality, Low Shrinkage, High Arc Resistance

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Bakelite® UP 802 Unsaturated Polyester Resin, High Surface Quality, Low Shrinkage, High Arc Resistance
Categories:	Polymer; Thermoset; Filled/Reinforced Thermoset; Polyester, TS; Thermoset Polyester Glass Filled BMC
Material Notes:	Polyester molding compound, inorganically filled, glass fiber reinforced, styrene free, high dimensional stability, very slight post shrinkage, good mechanical properties, increased electrical values. Applications: Ignition distributor caps, distributor fingers, spark plug connectors.
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Physical Properties	Metric	English	Comments

Density	1.98 g/cc	0.0715 lb/in³	ISO 1183
Apparent Bulk Density	0.890 g/cc	0.0322 lb/in³	ISO 60
Linear Mold Shrinkage	0.0020 cm/cm	0.0020 in/in	Compression Molding. Post Shrinkage = 0.05%.; ISO 2577

Mechanical Properties	Metric	English	Comments
Ball Indentation Hardness	360 MPa	52200 psi	H961/30; ISO 2039/P1
Flexural Strength	100 MPa	14500 psi	ISO 178
Flexural Modulus	12.5 GPa	1810 ksi	ISO 178
Compressive Strength	210 MPa	30500 psi	ISO 604
Charpy Impact Unnotched	0.650 J/cm²	3.09 ft-lb/in²	ISO 179-1 eU
Charpy Impact, Notched	0.350 J/cm²	1.67 ft-lb/in²	ISO 179-1eA

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+13 ohm-cm	1.00e+13 ohm-cm
Surface Resistance	1.00e+12 ohm	1.00e+12 ohm
Dielectric Constant	5.5 @Frequency 100 Hz	5.5 @Frequency 100 Hz
Dielectric Strength	26.0 kV/mm @Thickness 1.00 mm	660 kV/in @Thickness 0.0394 in	IEC 60243-P1
Dissipation Factor	0.020 @Frequency 100 Hz	0.020 @Frequency 100 Hz
Comparative Tracking Index	600 V	600 V

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	170 °C	338 °F	<20000 hours; IEC 60216-P1
	210 °C	410 °F	< 50 hours; IEC 60216-P1
Deflection Temperature at 8.0 MPa	180 °C	356 °F	ISO 75-2

Processing Properties	Metric	English	Comments
Feed Temperature	60.0 - 70.0 °C	140 - 158 °F	Injection molding
Nozzle Temperature	70.0 - 100 °C	158 - 212 °F	Injection molding
Melt Temperature	70.0 - 100 °C	158 - 212 °F	Injection molding
Mold Temperature	160 - 180 °C	320 - 356 °F	Injection molding
	160 - 180 °C	320 - 356 °F	Compression molding
Injection Pressure	>= 10.0 MPa	>= 1450 psi	Compression and injection cavity mold pressure
Back Pressure	0.500 - 1.00 MPa	72.5 - 145 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
Creep Rupture Strength	Good
Holding Pressure	Approximately 40-60% of injection pressure
Media Resistance	Medium
Thermal Expansion	Very Slight
Water absorption (mg)	25		24h / 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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