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This is the free Material Data Center Datasheet of Bakelite® UP 3720 - UP-X - Bakelite Synthetics

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Processing/Physical Characteristics - Mechanical properties - Thermal properties - Electrical properties - Other properties - Test specimen production - Diagrams

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Product Texts

Product description:

Polyester moulding compound, mainly organically filled, styrene free, very slight post shrinkage, very good electrical properties, very good sliding friction properties, dimensionally stable, UL listed moulding compound 0,8 mm / V1 (ALL), 1,5 mm / V-0 (ALL).

Application areas:

Bearings, guide rails, cross bars, micro switches, regulator switch cylinders.

Property Name	Value	Unit	Standard No.
Apparent density (moulding compound)	0.64	g/cm³	ISO 60
Moulding shrinkage (injection moulding, longitudinal)	0.75	%	ISO 2577
Post shrinkage (injection moulding, 168h/110°C)	0.15	%	ISO 2577
Moulding shrinkage (compression moulding, longitudinal)	0.35	%	ISO 2577
Post shrinkage (compression moulding, 168h/110°C)	0.1	%	ISO 2577
Tensile strength (5mm/min)	45	MPa	ISO 527-1/2
Compr. strength (test spec. flat tested)	150	MPa	ISO 604
Flexural strength (2mm/min)	90	MPa	ISO 178
Flexural modulus	8000	MPa	ISO 178
Ball indentation hardness (H 961/30)	250	MPa	ISO 2039/P1
Water absorption (24h/23°C)	50	mg	similar to ISO 62

Additional characteristics:

low shrinkage/good dimensional stability, high arc resistance

Preparation of Test Specimens of Thermosetting Moulding Compound

• Compression to ISO 295
• Injection to ISO 10724

Storage capability
12 month (shorter shelf life for darker colours), (relative humidity of 50-60% and maximum storage temperature of approximately 20°C)

Processing/Physical Characteristics	Value	Unit	Test Standard
ISO Data
Molding shrinkage, parallel	0.8	%	ISO 294-4, 2577

Mechanical properties	Value	Unit	Test Standard
ISO Data
Tensile Modulus	9000	MPa	ISO 527
Charpy impact strength, +23°C	9	kJ/m²	ISO 179/1eU
Charpy notched impact strength, +23°C	2.2	kJ/m²	ISO 179/1eA

Thermal properties	Value	Unit	Test Standard
ISO Data
Temp. of deflection under load, 8.00 MPa	70	°C	ISO 75-1/-2
Burning Behav. at 1.5 mm nom. thickn.	V-0	class	IEC 60695-11-10
Thickness tested	1.5	mm	-
Yellow Card available	yes	-	-
Burning Behav. at thickness h	V-1	class	IEC 60695-11-10
Thickness tested	0.8	mm	-
Yellow Card available	yes	-	-

Electrical properties	Value	Unit	Test Standard
ISO Data
Relative permittivity, 100Hz	5	-	IEC 62631-2-1
Dissipation factor, 100Hz	0.03	E-4	IEC 62631-2-1
Volume resistivity	1E10	Ohm*m	IEC 62631-3-1
Surface resistivity	1E11	Ohm	IEC 62631-3-2
Electric strength	32.5	kV/mm	IEC 60243-1
Comparative tracking index	600	-	IEC 60112

Other properties	Value	Unit	Test Standard
Density	1740	kg/m³	ISO 1183

Test specimen production	Value	Unit	Test Standard
ISO Data
Injection Molding, injection temperature	105	°C	ISO 10724
Injection Molding, injection velocity	170	mm/s	ISO 10724
Injection Molding, hold pressure	100	MPa	ISO 10724
Injection Molding, cure time	25	min	ISO 10724
Compression Molding, mold temperature	160	°C	ISO 295
Compression Molding, cure time	1	min	ISO 295

Diagrams

Characteristics

Processing

Injection Molding, Transfer Molding

Regional Availability

North America, Europe, Asia Pacific, South and Central America, Near East/Africa

Other text information

Injection molding

VERARBEITUNG

Temperature of material:	70 - 100	°C
Mould temperature:	160 - 180	°C
Curing time:	10-20	sec
Further Information:
Barrel temperature
- Feed zone:	60-70	°C
- Nozzle zone:	70-100	°C
Cavity moulding pressure:	>10	MPa
Back pressure:	0.5-1	MPa
Holding pressure:	60% of injection pressure

Compression molding

PROCESSING

Mould temperature:	160-180	°C
Curing time:	20-40	sec
Cavity moulding pressure:	>10	MPa

Disclaimer

Copyright Altair Engineering GmbH. Altair Engineering GmbH assumes no liability for the system to be free of errors. The user takes sole responsibility for the use of this data under the exclusion of every liability from Altair Engineering GmbH; this is especially valid for claims of compensation resulting from consequential damages. Altair explicitly points out that any decision about the application of materials must be double checked with the producer of this material. This includes all contents of this system. Copyright laws are applicable for the content of this system.

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