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CAMPUS® datasheet | VESTAKEEP® L 4000 G


This datasheet of VESTAKEEP® L 4000 G from Evonik Industries AG is provided by the international plastics database CAMPUS.

You may contact the supplier for more information about this grade.

This datasheet includes:

  VESTAKEEP® L 4000 G | PEEK | Evonik Industries AG
Product Texts
VESTAKEEP® L 4000 G


VESTAKEEP® L 4000 G is a high viscosity, unreinforced polyether ether
ketone for injection molding and extrusion.
The semi-crystalline polymer features superior thermal and chemical resistance.
Parts made from VESTAKEEP® L 4000 G are self-extinguishing.


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

 

Application example: Parts for the electrical industry,

                                   machinery construction and aerospace.

Rheological propertiesValueUnitTest Standard
Melt volume-flow rate, MVR 12 cm³/10min ISO 1133
Temperature 380 °C ISO 1133
Load 5 kg ISO 1133
Molding shrinkage, parallel 1.1 % ISO 294-4, 2577
Molding shrinkage, normal 1.8 % ISO 294-4, 2577
Mechanical propertiesValueUnitTest Standard
Tensile Modulus 3500 MPa ISO 527-1/-2
Yield stress 96 MPa ISO 527-1/-2
Yield strain 5 % ISO 527-1/-2
Nominal strain at break 30 % ISO 527-1/-2
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
Charpy notched impact strength, -30°C 6 kJ/m² ISO 179/1eA
Thermal propertiesValueUnitTest Standard
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, 50°C/h 50N 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 IEC 60695-11-10
Oxygen index 38 % ISO 4589-1/-2
Electrical propertiesValueUnitTest Standard
Relative permittivity, 100Hz 2.8 - IEC 60250
Relative permittivity, 1MHz 2.8 - IEC 60250
Dissipation factor, 1MHz 50 E-4 IEC 60250
Volume resistivity >1E13 Ohm*m IEC 60093
Surface resistivity 1E15 Ohm IEC 60093
Comparative tracking index 200 - IEC 60112
Other propertiesValueUnitTest Standard
Water absorption 0.5 % Sim. to ISO 62
Density 1300 kg/m³ ISO 1183
Rheological calculation propertiesValueUnitTest Standard
Thermal conductivity of melt 0.18 W/(m K) -
Spec. heat capacity of melt 2110 J/(kg K) -
Test specimen productionValueUnitTest Standard
Injection Molding, melt temperature 370 °C ISO 294
Injection Molding, mold temperature 180 °C ISO 10724
Injection Molding, injection velocity 200 mm/s ISO 294
Injection Molding, pressure at hold 120 MPa ISO 294
Diagrams
Stress-strain , VESTAKEEP® L 4000 G, PEEK, Evonik Industries
Secant modulus-strain , VESTAKEEP® L 4000 G, PEEK, Evonik Industries
Characteristics
Processing
Injection Molding, Film Extrusion, Other Extrusion
Delivery form
Pellets
Regional Availability
Other text information
Injection molding

PREPROCESSING INFORMATION
Maximum Water Content: 0.25 %
When the water content is exceeded, the resin must be dried.The drying time is dependent on the

drying temperature. In practice a drying time of 2 - 3 hours at a temperature of 150 - 160 °C (depen-

ding on the water content of the resin) has been found to be satisfactory. With the exeption of

fresh air dryers, all conventional dryers can be used.

PROCESSING INFORMATION

Melt Temperature:360 - 380°C
Mold Temperature:160 - 200°C

POSTPROCESSING INFORMATION

Tempering: Temperature:      200 °C

                 Tempering Time:     2 h

 

The level of internal strain in injection molded products can be reduced through tempering.

Film extrusion

PREPROCESSING INFORMATION
Maximum Water Content: 0.25 %
When the water content is exceeded, the resin must be dried.The drying time is dependent on the

drying temperature. In practice a drying time of 2 - 3 hours at a temperature of 150 - 160 °C (depen-

ding on the water content of the resin) has been found to be satisfactory. With the exeption of

fresh air dryers, all conventional dryers can be used.
PROCESSING INFORMATION
We r ecommend a linear tempearture profile for extrusion

Hopper:100 - 120°C
Temperature zone 1 - T-nozzle:350 - 380°C
Other extrusion

PREPROCESSING INFORMATION
Maximum Water Content: 0.25 %
When the water content is exceeded, the resin must be dried.The drying time is dependent on the

drying temperature. In practice a drying time of 2 - 3 hours at a temperature of 150 - 160 °C (depen-

ding on the water content of the resin) has been found to be satisfactory. With the exeption of

fresh air dryers, all conventional dryers can be used.

PROCESSING INFORMATION
We recommend a linear tempearture profile for extrusion

Hopper:100 - 120°C
Temperature zone 1 - T-nozzle:350 - 380°C
Disclaimer
All listed technical data are typical values intended for your guidance.
They are given without obligation and do not constitute a materials
specification. Should you have any further questions concerning material
behavior or properties, please contact us at the following address :

for PA:           Evonik Industries AG
                     PP-HP-CRM
                     Gebäude 1227 / PB 16
                     D-45764 Marl
                     Phone: +49-(0)2365/49-2720
                     Fax:+49-(0)2365/49-2070
                     E-Mail: campusplastics@evonik.com

for PMMA:     Evonik Industries AG
                     Marketing / Campus
                     Kirschenallee
                     D-64293 Darmstadt
                     Germany
                     Phone: +49 - (0) 61 51 / 18-47 11
                     Fax: +49 - (0) 61 51 / 18-31 77
                     E-Mail: campusplastics@evonik.com
                     Internet: http://www.plexiglas-polymers.com

 

® = registered trademark

 

PLEXIGLAS® is a registered trademark of Evonik Röhm GmbH, Germany,

outside of the Americas. Within the Americas it is sold as ACRYLITE®,

which is a registered trademark of Evonik Cyro LLC, USA.

PLEXIMID® is a registered trademarks of Evonik Röhm GmbH, Germany.

CYROLITE® and XT® polymer are registered trademarks of Evonik Cyro LLC, USA.

 

This information and all further technical advice is based on our present knowledge

and experience. However, it implies no liability or other legal responsibility on our part,

including with regard to existing third party intellectual property rights, especially

patent rights. In particular, no warranty, whether express or implied, or guarantee of

product properties in the legal sense is intended or implied. We reserve the right to

make any changes according to technological progress or further developments. The

customer is not released from the obligation to conduct careful inspection and testing

of incoming goods. Performance of the product described herein should be verified by

testing, which should be carried out only by qualified experts in the sole responsibility

of a customer. Reference to trade names used by other companies is neither a

recommendation, nor does it imply that similar products could not be used.

 

NAFTA:

This information and all technical and other advice are based on Evonik’s

present knowledge and experience. However, Evonik assumes no liability for

such information or advice, including the extent to which such information or

advice may relate to third party intellectual property rights. Evonik reserves the

right to make any changes to information or advice at any time, without prior

or subsequent notice. EVONIK DISCLAIMS ALL REPRESENTATIONS AND

WARRANTIES, WHETHER EXPRESS OR IMPLIED, AND SHALL HAVE NO LIABILITY

FOR, MERCHANTABILITY OF THE PRODUCT OR ITS FITNESS FOR A PARTICULAR

PURPOSE (EVEN IF EVONIK IS AWARE OF SUCH PURPOSE), OR OTHERWISE.

EVONIK SHALL NOT BE RESPONSIBLE FOR CONSEQUENTIAL, INDIRECT OR

INCIDENTAL DAMAGES (INCLUDING LOSS OF PROFITS) OF ANY KIND. It is the

customer’s sole responsibility to arrange for inspection and testing of all

products by qualified experts. Reference to trade names used by other

companies is neither a recommendation nor an endorsement of the

corresponding product, and does not imply that similar products could not be

used.

 

Sales range and technical data subject to alteration.

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CAMPUS® is a registered trademark of CWFG mbH, Frankfurt am Main, 2012