VESTAKEEP® DC4420 G
Polyetheretherketone
White pigmented polyether ether ketone for dental applications
VESTAKEEP® DC4420 G is a white pigmented, high viscosity polyether ether ketone (PEEK) resin that is especially designed for removable and fixed dentures, crowns and bridges.
For VESTAKEEP® DC4420 G, biocompatibility has been tested according to ISO 10993-1 recommendations for permanent mucous membrane contact.
The compound composition is optimised for high biocompatibility and superior mechanical, thermal and chemical resistance.
VESTAKEEP® DC4420 G can be processed by common melt processing techniques like injection molding and extrusion.
Features | - Biocompatible，Chemical Resistant，Good Heat Resistance，High Viscosity
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Uses | |
Agency Ratings | |
Appearance | |
Forms | |
Processing Method | - Extrusion，Injection Molding
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Density (73°F) | 1.49 | g/cm³ | ISO 1183 |
Melt Volume-Flow Rate (MVR) (380°C/5.0 kg) | 0.580 | in³/10min | ISO 1133 |
Water Absorption (Saturation, 73°F) | 0.40 | % | ISO 62 |
Tensile Modulus | 595000 | psi | ISO 527-2 |
Tensile Stress (Yield) | 13800 | psi | ISO 527-2 |
Tensile Strain |
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| ISO 527-2 |
Yield | 4.8 | % |
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Break | > 10 | % |
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Charpy Notched Impact Strength (73°F, Complete Break) | 3.2 | ft·lb/in² | ISO 179/1eA |
Charpy Unnotched Impact Strength (73°F) | No Break |
| ISO 179/1eU |
Heat Deflection Temperature |
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66 psi, Unannealed | 410 | °F | ISO 75-2/B |
264 psi, Unannealed | 311 | °F | ISO 75-2/A |
Vicat Softening Temperature |
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-- | 635 | °F | ISO 306/A |
-- | 581 | °F | ISO 306/B |
Melting Temperature 2 | 644 | °F | ISO 11357-3 |
CLTE - Flow (73 to 131°F) | 2.5E-5 | in/in/°F | ISO 11359-2 |
Processing (Melt) Temp | 716 to 752 | °F |
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Mold Temperature | 320 to 392 | °F |
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