Technical datasheet

VESTAKEEP® 4000 CF30

Supplied byEvonik- Last Updated on Feb 23, 2026

VESTAKEEP® 4000 CF30 by Evonik is a self-lubricating, semi-crystalline, high viscosity polyether ether ketone (PEEK) resin reinforced with 30% carbon fiber. Exhibits excellent mechanical-, thermal- & chemical resistance, high rigidity and partially low warpage. It is non-combustible & recyclable and offer self-extinguishing property. It can be processed by injection molding and extrusion. Suitable for use in housing parts. VESTAKEEP® 4000 CF30 complies with FDA and EU (10/2011) regulations.
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VESTAKEEP® 4000 CF30 properties

Electrical properties

PropertiesValue & unitTest conditionTest method
Dissipation Factor0.0 Visible After LoginVisible After LoginVisible After Login
Surface Resistance0.0 Visible After LoginVisible After LoginVisible After Login
Volume Resistivity0.0 Visible After LoginVisible After LoginVisible After Login

Flammability properties

PropertiesValue & unitTest conditionTest method
Flame Class Rating0.0 Visible After LoginVisible After LoginVisible After Login
Glow Wire Flammability Index (GWFI)0.0 Visible After LoginVisible After LoginVisible After Login
Glow Wire Ignition Temperature (GWIT)0.0 Visible After LoginVisible After LoginVisible After Login
Limiting Oxygen Index (LOI)0.0 Visible After LoginVisible After LoginVisible After Login

Mechanical properties

PropertiesValue & unitTest conditionTest method
Elongation at Break0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Charpy0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Charpy0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Notched Charpy0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Notched Charpy0.0 Visible After LoginVisible After LoginVisible After Login
Modulus of Elasticity0.0 Visible After LoginVisible After LoginVisible After Login

Other properties

PropertiesValue & unitTest conditionTest method
Dielectric Constant0.0 Visible After LoginVisible After LoginVisible After Login
Tensile Strength at Yield0.0 Visible After LoginVisible After LoginVisible After Login

Physical properties

PropertiesValue & unitTest conditionTest method
Density0.0 Visible After LoginVisible After LoginVisible After Login
Linear Mold Shrinkage, Flow0.0 Visible After LoginVisible After LoginVisible After Login
Linear Mold Shrinkage, Transverse0.0 Visible After LoginVisible After LoginVisible After Login
Melt Volume Flow Rate (MVR)0.0 Visible After LoginVisible After LoginVisible After Login
Water Absorption0.0 Visible After LoginVisible After LoginVisible After Login

Thermal properties

PropertiesValue & unitTest conditionTest method
CTE, Linear, Parallel to Flow0.0 Visible After LoginVisible After LoginVisible After Login
Deflection Temperature at 0.46 MPa (66 psi)0.0 Visible After LoginVisible After LoginVisible After Login
Deflection Temperature at 1.8 MPa (264 psi)0.0 Visible After LoginVisible After LoginVisible After Login
Glass Transition Temperature (Tg)0.0 Visible After LoginVisible After LoginVisible After Login
Melting Point0.0 Visible After LoginVisible After LoginVisible After Login
Vicat Softening Temperature0.0 Visible After LoginVisible After LoginVisible After Login
Vicat Softening Temperature0.0 Visible After LoginVisible After LoginVisible After Login

VESTAKEEP® 4000 CF30 Processing Guidelines

Injection Molding Processing Guidelines

PropertiesValue & unitTest conditionTest method
Back PressureVisible After LoginVisible After Login
Die TemperatureVisible After LoginVisible After Login
Drying TemperatureVisible After LoginVisible After Login
Drying TimeVisible After LoginVisible After Login
Hooper TemperatureVisible After LoginVisible After Login
Injection PressureVisible After LoginVisible After Login
Melt Front VelocityVisible After LoginVisible After Login
Melt TemperatureVisible After LoginVisible After Login
Mold TemperatureVisible After LoginVisible After Login
Residual Moisture Content (Max)Visible After LoginVisible After Login
Screw Rotation SpeedVisible After LoginVisible After Login
Screw SpeedVisible After LoginVisible After Login
Tool temperatureVisible After LoginVisible After Login
Vent DepthVisible After LoginVisible After Login
Zone 1 TemperatureVisible After LoginVisible After Login
Zone 2 TemperatureVisible After LoginVisible After Login
Zone 3 TemperatureVisible After LoginVisible After Login

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