Evonik VESTAKEEP® DC 4450 G PEEK, for Dental Use

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Evonik VESTAKEEP® DC 4450 G PEEK, for Dental Use
Categories:	Polymer; Thermoplastic; Polyketone; Polyetheretherketone (PEEK); Polyetheretherketone, PEEK, Unreinforced
Material Notes:	VESTAKEEP® DC4450 G is a tooth-colored, high viscosity polyether ether ketone (PEEK) resin that is especially designed for removable and fixed dentures, crowns and bridges. Dry properties listed below Industrial Sector: Medical Devices Processing: Injection molding, Extrusion Delivery form: Pellets, Granules Optics: Opaque Resistance to: Heat (thermal stability), Hydrolysis / hot water, Wear / abrasion, Fatigue resistance Conformity: Biocompatibility, Medical application Special Characteristics: Semi-crystalline, High viscosity Regulatory: US Pharmacopeia Class VI conformity Color: Tooth-colored Chemical Resistance: Acid resistance, Alkali resistance, Solvent resistance, Grease resistance, Hydrolytically stable, 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	1.51 g/cc	ISO 1183
Water Absorption	0.300 %	Sim to ISO 62
Moisture Absorption	0.300 %	Sim to ISO 62
Linear Mold Shrinkage, Flow	0.00900 cm/cm	ISO 294-4, 2577
Linear Mold Shrinkage, Transverse	0.0100 cm/cm	ISO 294-4, 2577
Melt Flow	11.0 g/10 min @Load 5.00 kg, Temperature 380 °C	ISO 1133
Ash	21.2 %	ISO 3451

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	75.0 MPa	ISO 527
Tensile Strength	95.0 MPa	ISO 527
Tensile Strength, Yield	95.0 MPa	ISO 527
Elongation at Break	20.0 %	Nominal; ISO 527
Elongation at Yield	4.80 %	ISO 527
Tensile Modulus	4100 MPa	ISO 527
Charpy Impact Unnotched	NB @Temperature 23.0 °C	ISO 179/1eU
	NB @Temperature -30.0 °C	ISO 179/1eU
Charpy Impact, Notched	6.80 kJ/m²	Type of failure: C; ISO 179/1eA

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 1.00e+13 ohm-cm	?V; IEC 62631-3-1
Surface Resistance	>= 1.00e+15 ohm	circular electrodes; IEC 62631-3-2
Dielectric Constant	3.50 @Frequency 50.0 Hz	IEC 62631-2-1
	3.60 @Frequency 100 Hz	IEC 62631-2-1
	3.60 @Frequency 1.00e+6 Hz	IEC 62631-2-1
Dielectric Strength	29.3 kV/mm @Thickness 1.00 mm	AC, S20/S20, t; IEC 60243-1

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	45.0 µm/m-°C @Temperature 25.0 - 55.0 °C	ISO 11359-1/-2
Melting Point	337 °C	ISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi)	210 °C	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	155 °C	ISO 75-1/-2
Vicat Softening Point	305 °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	154 °C	ISO 11357-1/-2

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

Descriptive Properties
Color	Tooth-colored

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PEVONIK7853 / 324985

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