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This is the free Material Data Center Datasheet of IMPET® 340R - PET-GF45 - Celanese

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Product Texts
Impet 340R is a 45% glass-reinforced injection moldable polyester made with post consumer recycled PET. It provides an excellent combination of strength, stiffness, and high temperature resistance.

Flammability at thickness h (0.81 mm)HB-
Processing/Physical CharacteristicsValueUnitTest Standard
ISO Data
Molding shrinkage, parallel 0.2 % ISO 294-4, 2577
Molding shrinkage, normal 0.6 % ISO 294-4, 2577
Mechanical propertiesValueUnitTest Standard
ISO Data
Tensile Modulus 16800 MPa ISO 527
Stress at break 175 MPa ISO 527
Strain at break 1.7 % ISO 527
Charpy impact strength, +23°C 24 kJ/m² ISO 179/1eU
Charpy impact strength, -30°C 21 kJ/m² ISO 179/1eU
Charpy notched impact strength, +23°C 11 kJ/m² ISO 179/1eA
Charpy notched impact strength, -30°C 9 kJ/m² ISO 179/1eA
Thermal propertiesValueUnitTest Standard
ISO Data
Melting temperature, 10°C/min 244 °C ISO 11357-1/-3
Glass transition temperature, 10°C/min 73 °C ISO 11357-1/-2
Temp. of deflection under load, 1.80 MPa 229 °C ISO 75-1/-2
Temp. of deflection under load, 0.45 MPa 240 °C ISO 75-1/-2
Coeff. of linear therm. expansion, parallel 14 E-6/K ISO 11359-1/-2
Coeff. of linear therm. expansion, normal 83 E-6/K ISO 11359-1/-2
Burning Behav. at thickness h HB class IEC 60695-11-10
Thickness tested 0.8 mm -
Oxygen index 22 % ISO 4589-1/-2
Electrical propertiesValueUnitTest Standard
ISO Data
Volume resistivity >1E13 Ohm*m IEC 62631-3-1
Other propertiesValueUnitTest Standard
Density 1730 kg/m³ ISO 1183
Characteristics
Processing
Injection Molding
Delivery form
Pellets
Additives
Lubricants
Regional Availability
North America, Europe, Asia Pacific, South and Central America, Near East/Africa
Other text information
Injection molding
To avoid hydrolytic degradation during processing, IMPET resins have to be dried to a moisture level equal to or less than 0.01%. Drying should be done in a dehumidifying hopper dryer capable of dewpoints <-30°F (-34°C) at 275°F (121°C) for 4 hours.
Rear Temperature 500-520(260-270) deg F (deg C)
Center Temperature 520-530(270-275) deg F (deg C)
Front Temperature 530-540(275-280) deg F (deg C)
Nozzle Temperature 530-550(275-290) deg F (deg C)
Melt Temperature 520-570(270-300) deg F (deg C)
Mold Temperature 230-250(110-120) deg F (deg C)
Back Pressure 0-25 psi
Screw Speed 50-75 rpm
Injection Speed Medium/Fast

Injection speed, injection pressure and holding pressure have to be optimized to the individual article geometry. To avoid material degradation during processing low back pressure and minimum screw speed have to be used. Overheating of the material has to be avoided, in particular for flame retardant grades. Up to 25% clean and dry regrind may be used.
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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