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This is the free Material Data Center Datasheet of CompaDur® 121 GK20 natural (008) - PBT-GB20 - DimeLika Plast GmbH

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Processing/Physical Characteristics - Mechanical properties - Thermal properties - Electrical properties - Other properties - Processing Recommendation Injection Molding
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Processing/Physical CharacteristicsValueUnitTest Standard
ISO Data
Melt volume-flow rate, MVR 22 cm³/10min ISO 1133
Temperature 250 °C -
Load 2.16 kg -
Molding shrinkage, parallel 1.6 % ISO 294-4, 2577
Molding shrinkage, normal 1.6 % ISO 294-4, 2577
Mechanical propertiesValueUnitTest Standard
ISO Data
Tensile Modulus 3800 MPa ISO 527
Stress at break 50 MPa ISO 527
Strain at break 5 % ISO 527
Charpy impact strength, +23°C 30 kJ/m² ISO 179/1eU
Charpy impact strength, -30°C 30 kJ/m² ISO 179/1eU
Charpy notched impact strength, +23°C 3 kJ/m² ISO 179/1eA
Charpy notched impact strength, -30°C 3 kJ/m² ISO 179/1eA
Ball indentation hardness 165 MPa ISO 2039-1
Thermal propertiesValueUnitTest Standard
ISO Data
Melting temperature, 10°C/min 223 °C ISO 11357-1/-3
Temp. of deflection under load, 1.80 MPa 70 °C ISO 75-1/-2
Temp. of deflection under load, 0.45 MPa 175 °C ISO 75-1/-2
Vicat softening temperature, B 190 °C ISO 306
Coeff. of linear therm. expansion, parallel 90 E-6/K ISO 11359-1/-2
Burning behav. at thickness h HB class IEC 60695-11-10
Thickness tested 0.8 mm -
Electrical propertiesValueUnitTest Standard
ISO Data
Relative permittivity, 100Hz 4.4 - IEC 62631-2-1
Relative permittivity, 1MHz 4.2 - IEC 62631-2-1
Volume resistivity >1E13 Ohm*m IEC 62631-3-1
Surface resistivity 1E14 Ohm IEC 62631-3-2
Comparative tracking index 225 - IEC 60112
Other propertiesValueUnitTest Standard
Water absorption 0.4 % Sim. to ISO 62
Humidity absorption 0.2 % Sim. to ISO 62
Density 1450 kg/m³ ISO 1183
Processing Recommendation Injection MoldingValueUnitTest Standard
Pre-drying - Temperature 120 - 140 °C -
Pre-drying - Time 2 - 4 h -
Processing humidity ≤0.02 % -
Melt temperature 260 - 270 °C -
Mold temperature 75 - 100 °C -
Zone 1 250 - 265 °C -
Nozzle temperature 260 - 270 °C -
Screw speed 80 rpm -
Injection pressure 60 - 100 MPa -
Back pressure 1 - 3 MPa -
Holding pressure 40 - 80 MPa -
Maximum residence time 10 min -
Characteristics
Processing
Injection Molding
Delivery form
Pellets, Natural Color
Special Characteristics
Heat stabilized or stable to heat
Features
Low Warpage
Regional Availability
Europe
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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