Bakelite® UP 3620 Unsaturated Polyester Resin, High Surface Quality, UL Listed

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Bakelite® UP 3620 Unsaturated Polyester Resin, High Surface Quality, UL Listed
Categories:	Polymer; Thermoset; Filled/Reinforced Thermoset; Polyester, TS; Thermoset Polyester Glass Filled BMC
Material Notes:	Polyester molding compound, mainly organically filled, styrene free, processing shrinkage as for phenolic molding compounds, non flammable, high surface quality, UL listed molding compound 1,5 mm / V-0 (ALL). Applications: Lamp parts, switch gears, housings and base plates, MCB housings.
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Physical Properties	Metric	English	Comments

Density	1.71 g/cc	0.0618 lb/in³	ISO 1183
Apparent Bulk Density	0.700 g/cc	0.0253 lb/in³	ISO 60
Linear Mold Shrinkage	0.0070 cm/cm	0.0070 in/in	Compression Molding. Post Shrinkage = 0.25%.; ISO 2577
	0.0075 cm/cm	0.0075 in/in	Injection Molding. Post Shrinkage = 0.25%.; ISO 2577

Mechanical Properties	Metric	English	Comments
Ball Indentation Hardness	250 MPa	36300 psi	H961/30; ISO 2039/P1
Tensile Strength	50.0 MPa	7250 psi	ISO 527 - 1/2
Tensile Modulus	8.50 GPa	1230 ksi	ISO 527 - 1/2
Flexural Strength	80.0 MPa	11600 psi	ISO 178
Flexural Modulus	7.50 GPa	1090 ksi	ISO 178
Compressive Strength	180 MPa	26100 psi	ISO 604
Charpy Impact Unnotched	0.750 J/cm²	3.57 ft-lb/in²	ISO 179-1 eU
Charpy Impact, Notched	0.190 J/cm²	0.904 ft-lb/in²	ISO 179-1eA

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+12 ohm-cm	1.00e+12 ohm-cm
Surface Resistance	1.00e+11 ohm	1.00e+11 ohm
Dielectric Constant	5.0 @Frequency 100 Hz	5.0 @Frequency 100 Hz
Dielectric Strength	30.0 kV/mm @Thickness 1.00 mm	762 kV/in @Thickness 0.0394 in	IEC 60243-P1
Dissipation Factor	0.020 @Frequency 100 Hz	0.020 @Frequency 100 Hz
Arc Resistance	140 - 145 sec	140 - 145 sec	ASTM D495
High Voltage Arc Resistance to Ignition (HVAR)	>= 300 sec @Thickness 1.50 mm	>= 300 sec @Thickness 0.0591 in	(ALL)
Comparative Tracking Index	600 V	600 V
Hot Wire Ignition, HWI	60 - 120 sec @Thickness 1.50 mm	60 - 120 sec @Thickness 0.0591 in	(ALL)
	>= 120 sec @Thickness 3.00 mm	>= 120 sec @Thickness 0.118 in	ALL
High Amp Arc Ignition, HAI	>= 120 arcs @Thickness 1.50 mm	>= 120 arcs @Thickness 0.0591 in	(ALL)
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	ALL

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	130 °C	266 °F	<20000 hours; IEC 60216-P1
	190 °C	374 °F	< 50 hours; IEC 60216-P1
Deflection Temperature at 8.0 MPa	70.0 °C	158 °F	ISO 75-2
UL RTI, Electrical	105 °C @Thickness 1.50 mm	221 °F @Thickness 0.0591 in	(ALL)
UL RTI, Mechanical with Impact	130 °C @Thickness 1.50 mm	266 °F @Thickness 0.0591 in	(ALL)
UL RTI, Mechanical without Impact	130 °C @Thickness 1.50 mm	266 °F @Thickness 0.0591 in	(ALL)
Flammability, UL94	V-0 @Thickness 1.50 mm	V-0 @Thickness 0.0591 in	All colors

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	Medium
Holding Pressure	Approximately 40-60% of injection pressure
Media Resistance	Medium
Thermal Expansion	Slight
Water absorption (mg)	70		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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