VESTAKEEP® 4000G

About
High-viscosity, unreinforced polyether ether ketone VESTAKEEP 4000G 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 4000G are self-extinguishing. VESTAKEEP 4000G can be processed by common machines for thermoplastics. 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.&&

Product Description
SupplierEvonik
GenericPEEK
Material StatusCommercial: Active
FeaturesHigh Viscosity,Self-extinguishing,Hypocrystalline,Solvent resistance,V-0
AvailabilitysNorth America,Europe
Process MethodsExtrusion

Technical Data
PHYSICALNominal valueUnitTest method
Density1.30g/cm³ISO 1183
Melt Volume Rate
380℃,5 kg11.0cm³/10minISO 1133
Shrinkage rate ISO 294-4
TD:180℃,2.0 mm1.1%ISO 294-4
MD:180℃,2.0 mm0.90%ISO 294-4

MECHANICALNominal valueUnitTest method
Tensile modulus3500MPaISO 527-2
tensile strength
yield96.0MPaISO 527-2
Tensile strain
fracture30%ISO 527-2
yield5.0%ISO 527-2

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength ISO 179/1eA
-30 ℃, completely fractured6.0kJ/m²ISO 179/1eA
23 ℃, completely fractured7.0kJ/m²ISO 179/1eA
Charpy Unnotch Impact strength ISO 179/1eU
-30℃No Break ISO 179/1eU
23℃No Break ISO 179/1eU

THERMALNominal valueUnitTest method
Vicat Softening Temp 
335ISO 306/A
305ISO 306/B
Melting temperature
DSC340ISO 3146
Linear coefficient of thermal expansion
MD:23~55℃6.0E-41/℃ISO 11359-2

Electrical performanceNominal valueUnitTest method
Surface resistivity1.0E+14ohmsIEC 60093
Volume resistivity1.0E+15ohms·cmIEC 60093
Dielectric strength16kV/mmIEC 60243-1
Relative permittivity IEC 60250
50 Hz2.80 IEC 60250
1 MHz2.80 IEC 60250
Compared to the leakage tracing index IEC 60112
Solution A175VIEC 60112
Solution A200VIEC 60112

FLAME CHARACTERISTICSNominal valueUnitTest method
Flame retardant level
3.20 mmV-0 UL 94
Glowing wire flammability index
2.0 mm960IEC 60695-2-12
Igniting temperature of the hot wire
2 mm825IEC 60695-2-13

Process Conditions
injectionNominal valueUnitTest method
ExtrusionNominal valueUnitTest method
Processing (melt) temperature370 to 380°C
Mold temperature160 to 200°C
Hopper temperature100 to 120°C
Barrel 1 zone temperature350 to 380°C

Notes
1. Typical properties: these are not to be construed as specifications.
2. 2nd heating
3. K20/P50
4. 100 drops value
【 Disclaimer 】
Guangzhou Soliao Information Technology Co., Ltd. reserves all rights. The information in this data table was obtained from the manufacturer of the material on soliao.com. Soliao.com makes every effort to ensure the accuracy of this data. However, the search company does not assume any responsibility for the uncertainty and consequences caused to users by these data values and suggestions, and strongly recommends verifying the data values with the material supplier before the final selection of materials.