Evonik VESTAKEEP® DC 4470 G PEEK, for Dental Use

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Evonik VESTAKEEP® DC 4470 G PEEK, for Dental Use
Categories:	Polymer; Thermoplastic; Polyketone; Polyetheretherketone (PEEK); Polyetheretherketone, PEEK, Unreinforced
Material Notes:	VESTAKEEP® DC4470 G is a gingiva-colored, high viscosity polyether ether ketone (PEEK) resin that is especially designed for removable dentures to meet the aesthetic demands of the patient. Dry properties listed below Industrial Sector: Medical Devices Processing: Injection molding , Extrusion Delivery form: Pellets, Granules Optics: Opaque Resistance to: Wear / abrasion Conformity: Biocompatibility, Medical application Special Characteristics: Semi-crystalline Regulatory: US Pharmacopeia Class VI conformity Color: Gingiva-colored Chemical Resistance: Acid resistance, Alkali resistance, Solvent resistance, Grease resistance, Hydrolytically stable, 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	1.36 g/cc	ISO 1183
Water Absorption	0.400 %	Sim to ISO 62
Melt Flow	11.0 g/10 min @Load 5.00 kg, Temperature 380 °C	ISO 1133
Ash	3.60 %	ISO 3451

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	78.0 MPa
Tensile Strength	95.0 MPa	ISO 527
Tensile Strength, Yield	95.0 MPa	ISO 527
Elongation at Break	25.0 %	ISO 527
Elongation at Yield	5.00 %	ISO 527
Tensile Modulus	3600 MPa	ISO 527
Charpy Impact Unnotched	NB	ISO 179/1eU
Charpy Impact, Notched	7.50 kJ/m²	Type of failure: C; ISO 179/1eA

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	340 °C	ISO 11357-1/-2
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	145 °C	2nd heating, onset; ISO 11357
	150 °C	2nd heating, midpoint; ISO 11357
	153 °C	ISO 11357-1/-2

Processing Properties	Original Value	Comments
Melt Temperature	400 °C	Injection Molding; ISO 294
Mold Temperature	180 °C	Injection Molding; ISO 294
Injection Velocity	200 mm/sec	Injection Molding; ISO 294
Recrystallization Temperature	285 °C	10 K/min; ISO 11357

Descriptive Properties
Color	13.4	Color b, CIE
	20.4	Color a, CIE
	60.7	Color L, CIE
	Gingiva-colored

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PEVONIK7858 / 324990

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