Evonik VESTAKEEP® i2 G PEEK

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Evonik VESTAKEEP® i2 G PEEK
Categories:	Polymer; Thermoplastic; Polyketone; Polyetheretherketone (PEEK); Polyetheretherketone, PEEK, Unreinforced
Material Notes:	VESTAKEEP® i2 G is a natural colored, standard viscosity polyether ether ketone (PEEK) that is especially designed for long term implantable medical devices. This grade is often used for injection molding processing technologies due to its good flowability. Dry properties listed below Industrial Sector: Medical Devices Processing: Injection molding , Extrusion Delivery form: Pellets, Granules Optics: Opaque Conformity: Biocompatibility, Medical application Additives: Unfilled Special Characteristics: Semi-crystalline Regulatory: US Pharmacopeia Class VI conformity Color: Natural color Chemical Resistance: Acid resistance, Alkali resistance, Solvent resistance, Grease resistance, Hydrolytically stable, Oil resistance, Oxidation resistance, General chemical resistance Information provided by Evonik.
Vendors:	Ensinger TECAPEEK™ shapes are manufactured exclusively with Victrex™ PEEK polymer. The Ensinger process and Victrex resins ensure reliability, consistency, dimensional stability, and high temperature mechanical performance. Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Original Value	Comments

Density	1.30 g/cc	ISO 1183
Water Absorption	0.400 %	Sim to ISO 62
Moisture Absorption	0.120 %	Sim to ISO 62
Linear Mold Shrinkage, Flow	0.0110 cm/cm	ISO 294-4, 2577
Linear Mold Shrinkage, Transverse	0.0110 cm/cm	ISO 294-4, 2577
Melt Flow	68.0 g/10 min @Load 5.00 kg, Temperature 380 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	74.0 MPa	ISO 527
Tensile Strength	98.0 MPa	ISO 527
Tensile Strength, Yield	98.0 MPa	ISO 527
Elongation at Break	20.0 %	Nominal; ISO 527
Elongation at Yield	5.00 %	ISO 527
Tensile Modulus	3700 MPa	ISO 527
Flexural Strength	117 MPa	ISO 178
Flexural Modulus	3600 MPa	ISO 178
Charpy Impact Unnotched	NB @Temperature 23.0 °C	ISO 179/1eU
	NB @Temperature -30.0 °C	ISO 179/1eU
Charpy Impact, Notched	6.00 kJ/m² @Temperature 23.0 °C	Type of failure: C; ISO 179/1eA
	6.00 kJ/m² @Temperature -30.0 °C	Type of failure: C; ISO 179/1eA

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 1.00e+13 ohm-cm	?V; IEC 62631-3-1
Dielectric Constant	2.80 @Frequency 100 Hz	IEC 62631-2-1
	2.80 @Frequency 1.00e+6 Hz	IEC 62631-2-1
Dielectric Strength	16.0 kV/mm	AC, S20/P50; Sim to IEC 60243-1
Dissipation Factor	0.00500 @Frequency 1.00e+6 Hz	IEC 62631-2-1
Comparative Tracking Index	200 V	test solution A, 50 drops value; IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	60.0 µm/m-°C @Temperature 25.0 - 55.0 °C	ISO 11359-1/-2
Melting Point	342 °C	ISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi)	205 °C	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	150 °C	ISO 75-1/-2
Vicat Softening Point	310 °C @Load 5.10 kg	50 K/h; ISO 306
	335 °C @Load 1.02 kg	50 K/h; ISO 306
Glass Transition Temp, Tg	150 °C	ISO 11357-1/-2
Flammability, UL94	V-0 @Thickness 3.20 mm	IEC 60695-11-10
Oxygen Index	38.0 %	ISO 4589-1/-2
	38.0 %	ASTM D2863

Processing Properties	Original Value	Comments
Melt Temperature	360 °C
	380 °C	Injection Molding; ISO 294
Mold Temperature	180 °C	Injection Molding; ISO 294
	180 °C
Injection Velocity	200 mm/sec	Injection Molding; ISO 294

Descriptive Properties
Color	Natural Color

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PEVONIK7861 / 324993

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