Bakelite® UP 804 Unsaturated Polyester Resin, High Surface Quality, UL Listed, Low Shrinkage, High Arc Resistance

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Bakelite® UP 804 Unsaturated Polyester Resin, High Surface Quality, UL Listed, 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, non flammable, very good electrical properties, high temperature stability, UL list Applications: Explosion proof switches, safety switch housings, electric motor clamp boards, wiring devices, housing parts, oven strips, oven knobs and regulator knobs, lamp parts.
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Physical Properties	Metric	English	Comments

Density	2.10 g/cc	0.0759 lb/in³	ISO 1183
Apparent Bulk Density	0.920 g/cc	0.0332 lb/in³	ISO 60
Linear Mold Shrinkage	0.0015 cm/cm	0.0015 in/in	Compression Molding. Post Shrinkage = 0.02%.; ISO 2577

Mechanical Properties	Metric	English	Comments
Ball Indentation Hardness	425 MPa	61600 psi	H961/30; ISO 2039/P1
Flexural Strength	105 MPa	15200 psi	ISO 178
Flexural Modulus	14.5 GPa	2100 ksi	ISO 178
Compressive Strength	165 MPa	23900 psi	ISO 604
Charpy Impact Unnotched	0.700 J/cm²	3.33 ft-lb/in²	ISO 179-1 eU
Charpy Impact, Notched	0.400 J/cm²	1.90 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	6.0 @Frequency 100 Hz	6.0 @Frequency 100 Hz
Dielectric Strength	26.5 kV/mm @Thickness 1.00 mm	673 kV/in @Thickness 0.0394 in	IEC 60243-P1
Dissipation Factor	0.020 @Frequency 100 Hz	0.020 @Frequency 100 Hz
Arc Resistance	185 - 190 sec	185 - 190 sec	ASTM D495
High Voltage Arc Resistance to Ignition (HVAR)	>= 300 sec @Thickness 1.40 mm	>= 300 sec @Thickness 0.0551 in	(BK)
	>= 300 sec @Thickness 1.50 mm	>= 300 sec @Thickness 0.0591 in	(GY, BN, WT)
Comparative Tracking Index	600 V	600 V
Hot Wire Ignition, HWI	>= 120 sec @Thickness 1.40 mm	>= 120 sec @Thickness 0.0551 in	(BK)
	>= 120 sec @Thickness 1.50 mm	>= 120 sec @Thickness 0.0591 in	(GY, BN, WT)
High Amp Arc Ignition, HAI	60 - 120 arcs @Thickness 1.40 mm	60 - 120 arcs @Thickness 0.0551 in	(BK)
	60 - 120 arcs @Thickness 1.50 mm	60 - 120 arcs @Thickness 0.0591 in	(GY, BN, WT)

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	205 °C	401 °F	ISO 75-2
UL RTI, Electrical	105 °C @Thickness 1.40 mm	221 °F @Thickness 0.0551 in	(BK)
	105 °C @Thickness 1.50 mm	221 °F @Thickness 0.0591 in	(GY, BN, WT)
UL RTI, Mechanical with Impact	130 °C @Thickness 1.40 mm	266 °F @Thickness 0.0551 in	(BK)
	130 °C @Thickness 1.50 mm	266 °F @Thickness 0.0591 in	(GY, BN, WT)
UL RTI, Mechanical without Impact	130 °C @Thickness 1.40 mm	266 °F @Thickness 0.0551 in	(BK)
	130 °C @Thickness 1.50 mm	266 °F @Thickness 0.0591 in	(GY, BN, WT)
Flammability, UL94	V-1 @Thickness 1.50 mm	V-1 @Thickness 0.0591 in	WT
	V-0 @Thickness 1.40 mm	V-0 @Thickness 0.0551 in	BK
	V-0 @Thickness 1.50 mm	V-0 @Thickness 0.0591 in	BN,GY

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)	13		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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