VESTAKEEP® 4000G by Evonik is an unreinforced, semi-crystalline, high viscosity polyether ether ketone (PEEK) resin. Exhibits excellent thermal- and chemical resistance. It is non-combustible, self-extinguishing and recyclable. It can be processed by injection molding and extrusion. Suitable for automotive applications such as gears and medical goods. VESTAKEEP® 4000G complies with EU (10/2011) and FDA Regulation 21 CFR, § 177.2415.
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Chemical family:
Product Type:
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| Bio Based content | Visible After Login |
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Compliance
| Food Contact Approval | Visible After Login |
| Certifications & Compliance | Visible After Login |
Applications
Recommended markets
Applications
Conversion mode
Availability
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VESTAKEEP® 4000G properties
Electrical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Comparative Tracking Index (CTI) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Dielectric Strength | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Dissipation Factor | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Surface Resistance | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Volume Resistivity | 0.0 Visible After Login | Visible After Login | Visible After Login |
Flammability properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Flame Rating, UL 94 | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Glow Wire Flammability Index (GWFI) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Glow Wire Ignition Temperature (GWIT) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Limiting Oxygen Index (LOI) | 0.0 Visible After Login | Visible After Login | Visible After Login |
Mechanical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Elongation at Break | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Impact Strength, Charpy | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Impact Strength, Charpy | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Impact Strength, Notched Charpy | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Impact Strength, Notched Charpy | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Modulus of Elasticity | 0.0 Visible After Login | Visible After Login | Visible After Login |
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Dielectric Constant | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Dielectric Constant | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Elongation at Yield | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tensile Strength at Yield | 0.0 Visible After Login | Visible After Login | Visible After Login |
Physical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Density | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Linear Mold Shrinkage, Flow | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Linear Mold Shrinkage, Transverse | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Melt Volume Flow Rate (MVR) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Water Absorption at Saturation | 0.0 Visible After Login | Visible After Login | Visible After Login |
Thermal properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| CTE, Linear, Parallel to Flow | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Deflection Temperature at 0.46 MPa (66 psi) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Deflection Temperature at 1.8 MPa (264 psi) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Glass Transition Temperature (Tg) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Melting Point | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Vicat Softening Temperature | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Vicat Softening Temperature | 0.0 Visible After Login | Visible After Login | Visible After Login |
VESTAKEEP® 4000G Processing Guidelines
Injection Molding Processing Guidelines
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Anisotropic Factor | Visible After Login | Visible After Login | |
| Back Pressure | Visible After Login | Visible After Login | |
| Die Temperature | Visible After Login | Visible After Login | |
| Drying Temperature | Visible After Login | Visible After Login | |
| Drying Time | Visible After Login | Visible After Login | |
| Hooper Temperature | Visible After Login | Visible After Login | |
| Injection Pressure | Visible After Login | Visible After Login | |
| Melt Front Velocity | Visible After Login | Visible After Login | |
| Melt Temperature | Visible After Login | Visible After Login | |
| Mold Temperature | Visible After Login | Visible After Login | |
| Residual Moisture Content (Max) | Visible After Login | Visible After Login | |
| Screw Rotation Speed | Visible After Login | Visible After Login | |
| Screw Speed | Visible After Login | Visible After Login | |
| Tool temperature | Visible After Login | Visible After Login | |
| Vent Depth | Visible After Login | Visible After Login | |
| Zone 1 Temperature | Visible After Login | Visible After Login | |
| Zone 2 Temperature | Visible After Login | Visible After Login | |
| Zone 3 Temperature | Visible After Login | Visible After Login | |




