Makroblend® M525
Polycarbonate + PBT
(PC+PBT) Blend, impact modified, easy release, injection molding grade. Makroblend M525 offers an exceptional low-temperature impact strength, good flowability and excellent chemical resistance. Manufactured according to GMP, tested only according to ISO 10993-5 and ISO 10993-10 for contact with uncompromised skin only; for questions regarding biocompatibility we ask for an email inquiry under plastics@covestro.com.
Additive | |
Features | - Chemical Resistant，Good Flow，Impact Modified，Low Temperature Impact Resistance
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RoHS Compliance | |
Processing Method | |
Density (73°F) | 1.22 | g/cm³ | ISO 1183 |
Melt Volume-Flow Rate (MVR) (260°C/5.0 kg) | 1.28 | in³/10min | ISO 1133 |
Molding Shrinkage |
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| ISO 2577 |
Across Flow 3 | 0.70 to 0.90 | % |
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Across Flow : 194°F, 1 hr | 0.10 to 0.20 | % |
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Flow 3 | 0.70 to 0.90 | % |
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Flow : 194°F, 1 hr | 0.10 to 0.20 | % |
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Tensile Modulus (73°F) | 290000 | psi | ISO 527-2/1 |
Tensile Stress |
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| ISO 527-2/50 |
Yield, 73°F | 7980 | psi |
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Break, 73°F | 6530 | psi |
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Tensile Strain (Yield, 73°F) | 4.5 | % | ISO 527-2/50 |
Nominal Tensile Strain at Break (73°F) | > 50 | % | ISO 527-2/50 |
Flexural Modulus 4 (73°F) | 290000 | psi | ISO 178 |
Flexural Stress 4 (3.5% Strain, 73°F) | 9430 | psi | ISO 178 |
Notched Izod Impact Strength |
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| ISO 180/A |
-4°F | 21 | ft·lb/in² |
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73°F | 29 | ft·lb/in² |
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Heat Deflection Temperature |
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66 psi, Unannealed | 212 | °F | ISO 75-2/B |
264 psi, Unannealed | 167 | °F | ISO 75-2/A |
Vicat Softening Temperature | 252 | °F | ISO 306/B120 |
CLTE |
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| ISO 11359-2 |
Flow : 73 to 131°F | 5.0E-5 | in/in/°F |
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Transverse : 73 to 131°F | 5.0E-5 | in/in/°F |
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Surface Resistivity | > 1.0E+15 | ohms | IEC 60093 |
Volume Resistivity (73°F) | > 1.0E+16 | ohms·cm | IEC 60093 |
Comparative Tracking Index |
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| IEC 60112 |
Solution A | 225 | V |
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Solution B | 100 | V |
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