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Covestro PC+PBT Makroblend M525 exceptional low-temperature impact strength
| Brand Name | Covestro |
| Model Number | M525 |
General purpose grades
PC+PBT Blends, elastomer modified / Special grades
(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;
Rheological properties
| Property | Test Condition | Unit | Standard | typical Value | |
| C | Melt volume-flow rate | 260 °C/ 5 kg | cm³/10 min | ISO 1133 | 21 |
| Molding shrinkage, parallel/normal | Value range based on general practical experience (600bar) |
% | b.o. ISO 2577 | 0.7- 0.9 | |
| Post- shrinkage, parallel/normal | Value range based on general practical experience (1h; 90°C) |
% | b.o. ISO 2577 | 0.1 - 0.2 | |
Mechanical properties (23 °C/50 % r. h.)
| Property | Test Condition | Unit | Standard | typical Value | |
| C | Tensile modulus | 1 mm/min | MPa | ISO 527-1,-2 | 2000 |
| C | Yield stress | 50 mm/min | MPa | ISO 527-1,-2 | 55 |
| C | Yield strain | 50 mm/min | % | ISO 527-1,-2 | 4.5 |
| C |
Nominal strain at break
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50 mm/min
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% | ISO 527-1,-2 | >50 |
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Stress at break
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50 mm/min
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MPa | ISO 527-1,-2 | 45 | |
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Flexural modulus
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2 mm/min | MPa | ISO 178 | 2000 | |
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Flexural strain at flexural strength
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2 mm/min | MPa | ISO 178 | 65 | |
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Flexural stress at 3.5 % strain
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23°C | kJ/m² | ISO 180/A | 60 | |
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Izod notched impact strength
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-20°C | kJ/m² |
ISO 180/A
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45 | |
Resins wholesale,Factory-Direct supply,Certified supplier
Main Product: PC,PC/ABS,PC/PET,PC/PBT
Customized Services: Modified, Color matching, Production technical support
Several Warehouse: Guang zhou, Dong guan, Shen zhen, Hong kong
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