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This is the free Material Data Center Datasheet of VESTAKEEP® L 4000 G - PEEK - Evonik Operations GmbH

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Product Texts

High viscosity, unreinforced polyether ether ketone

VESTAKEEP® L 4000 G is a high viscosity, unreinforced lubricated polyether ether ketone for injection molding and extrusion.

The semi-crystalline polymer features superior, thermal and chemical resistance. Parts made from VESTAKEEP® L4000G are of low flammability.

VESTAKEEP® L 4000 G can be processed by common machines for thermoplastics.

The additional lubrication agent improves the feeding process.
 

We recommend a melt temperature between 370°C and 380°C during the injection molding process. The mold temperature should be within a range of 160°C to 200°C, preferably 180°C.
 

VESTAKEEP® L 4000 G is supplied as granules in 25 kg boxes with moisture-proof polyethylene liners.
 


Inside the original and undamaged packaging, the product has a shelf life of at least 2 years when stored in dry rooms at temperatures not exceeding 30°C.

Pigmentation may affect values.

FOR FURTHER INFORMATION PLEASE CONTACT US AT EVONIK-HP@EVONIK.COM
OR VISIT OUR PRODUCT AT WWW.INDUSTRIAL.VESTAKEEP.COM

Processing/Physical CharacteristicsValueUnitTest Standard
ISO Data
Melt volume-flow rate, MVR 12 cm³/10min ISO 1133
Temperature 380 °C -
Load 5 kg -
Molding shrinkage, parallel 0.9 % ISO 294-4, 2577
Molding shrinkage, normal 1.1 % ISO 294-4, 2577
Mechanical propertiesValueUnitTest Standard
ISO Data
Tensile Modulus 3600 MPa ISO 527
Yield stress 94 MPa ISO 527
Yield strain 5 % ISO 527
Nominal strain at break 30 % ISO 527
Charpy impact strength, +23°C N kJ/m² ISO 179/1eU
Charpy impact strength, -30°C N kJ/m² ISO 179/1eU
Charpy notched impact strength, +23°C 7 kJ/m² ISO 179/1eA
Type of failure C - -
Charpy notched impact strength, -30°C 6 kJ/m² ISO 179/1eA
Type of failure C - -
Thermal propertiesValueUnitTest Standard
ISO Data
Melting temperature, 10°C/min 340 °C ISO 11357-1/-3
Temp. of deflection under load, 1.80 MPa 155 °C ISO 75-1/-2
Temp. of deflection under load, 0.45 MPa 205 °C ISO 75-1/-2
Vicat softening temperature, B 305 °C ISO 306
Coeff. of linear therm. expansion, parallel 60 E-6/K ISO 11359-1/-2
Burning Behav. at 1.5 mm nom. thickn. V-0 class IEC 60695-11-10
Thickness tested 1.6 mm -
Yellow Card available yes - -
Oxygen index 38 % ISO 4589-1/-2
Electrical propertiesValueUnitTest Standard
ISO Data
Relative permittivity, 100Hz 2.8 - IEC 62631-2-1
Relative permittivity, 1MHz 2.8 - IEC 62631-2-1
Dissipation factor, 1MHz 50 E-4 IEC 62631-2-1
Volume resistivity >1E13 Ohm*m IEC 62631-3-1
Surface resistivity 1E15 Ohm IEC 62631-3-2
Comparative tracking index 200 - IEC 60112
Other propertiesValueUnitTest Standard
Water absorption 0.5 % Sim. to ISO 62
Humidity absorption 0.3 % Sim. to ISO 62
Density 1300 kg/m³ ISO 1183
Diagrams
Stress-strain , VESTAKEEP® L 4000 G, PEEK, Evonik
Secant modulus-strain , VESTAKEEP® L 4000 G, PEEK, Evonik
Characteristics
Processing
Injection Molding, Film Extrusion, Profile Extrusion, Other Extrusion
Delivery form
Pellets
Regional Availability
Application examples
Spindle nuts, steering clumn
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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