Evonik VESTAKEEP® D4 G PEEK, for Dental Use

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Evonik VESTAKEEP® D4 G PEEK, for Dental Use
Categories:	Polymer; Thermoplastic; Polyketone; Polyetheretherketone (PEEK); Polyetheretherketone, PEEK, Unreinforced
Material Notes:	VESTAKEEP® D4 G is natural colored, high viscosity polyether ether ketone (PEEK) 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 Additives: Unfilled Processing: Powder bed fusion 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
Linear Mold Shrinkage, Flow	0.00900 cm/cm	ISO 294-4, 2577
Linear Mold Shrinkage, Transverse	0.0110 cm/cm	ISO 294-4, 2577
Melt Flow	12.0 g/10 min @Load 5.00 kg, Temperature 380 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Tensile Strength	96.0 MPa	ISO 527
Tensile Strength, Yield	96.0 MPa	ISO 527
Elongation at Break	30.0 %	ISO 527
Elongation at Yield	5.00 %	ISO 527
Tensile Modulus	3500 MPa	ISO 527
Flexural Strength	110 MPa	ISO 178
Flexural Modulus	3500 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	7.00 kJ/m² @Temperature -30.0 °C	Type of failure: C; ISO 179/1eA
	8.00 kJ/m² @Temperature 23.0 °C	Type of failure: C; ISO 179/1eA

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	45.0 µm/m-°C @Temperature 23.0 - 55.0 °C	ISO 11359-1/-2
Melting Point	340 °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	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	370 °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
Recrystallization Temperature	285 °C	10 K/min; ISO 11357

Descriptive Properties
Color	2.6	Color a, CIE
	60	Color L, CIE
	8.5	Color b, CIE
	Natural Color

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PEVONIK7847 / 324979

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