Evonik VESTAKEEP® DC 4470 R PEEK, for Dental Use

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Evonik VESTAKEEP® DC 4470 R PEEK, for Dental Use
Categories:	Polymer; Thermoplastic; Polyketone; Polyetheretherketone (PEEK); Polyetheretherketone, PEEK, Unreinforced
Material Notes:	VESTAKEEP® DC4470 R is a gingiva-colored polyether ether ketone (PEEK) grade that is especially designed for removable dentures to meet the aesthetic demands of the patient. Dry properties listed below Industrial Sector: Medical Devices Processing: Machining Delivery form: Stock shape (rods and plates) Optics: Opaque Resistance to: Heat (thermal stability), Hydrolysis / hot water, Wear / abrasion, Fatigue resistance Conformity: Biocompatibility, Medical application Special Characteristics: Semi-crystalline Regulatory: US Pharmacopeia Class VI conformity Color: Gingiva-colored Delivery form: Rods Ø6-20mm,stan.lengths 3000mm, Rods Ø70-100mm,stan.lengths 1000mm 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	1.36 g/cc	ISO 1183
Water Absorption	0.400 %	Sim to ISO 62

Mechanical Properties	Original Value	Comments
Tensile Strength, Yield	110 MPa	ISO 527
Elongation at Break	10.0 %	ISO 527
Elongation at Yield	4.50 %	ISO 527
Tensile Modulus	4400 MPa	ISO 527
Flexural Strength	170 MPa	ISO 178
Flexural Modulus	4400 MPa	ISO 178
Izod Impact, Notched (ISO)	5.40 kJ/m²	ISO 180/1A

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
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

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

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PEVONIK7859 / 324991

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