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Makroblend® M525

(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.

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About

Product Types

  • PC+PBT

Material

Plastics
Medical, Chemical resistant, Cold stable, Impact resistant

General Characterization

No data available

Storage Conditions

No data available

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Property Name Standard Test condition Unit Value
Barrel Temperatures - Front - °C 255 - 265
Barrel Temperatures - Middle - °C 250 - 260
Barrel Temperatures - Nozzle - °C 255 - 270
Barrel Temperatures - Rear - °C 245 - 255
Dry Air Drying Temperature - °C 110
Dry Air Drying Time - h 2 - 4
Hold Pressure (% of injection pressure) - % 50 - 75
Melt temperatures - °C 250 - 270
Moisture Content max. (%) - % <= 0,01
Mold Temperatures - °C 60 - 100
Peripheral Screw Speed - m/s 0.05 - 0.2
Plastic Back Pressure (specific) - bar 50 - 150
Shot-to-Cylinder Size - % 30 - 70
Standard Melt temperature - °C 260
Vent Depth - mm 0.025 - 0.075
Property Name Standard Test condition Unit Value
Burning behavior UL 94 (1.5 mm) [UL recognition] UL 94 Class HB
Temperature of deflection under load ISO 75-1,-2 0.45 MPa °C 100
Temperature of deflection under load ISO 75-1,-2 1.80 MPa °C 75
Vicat softening temperature ISO 306 50 N; 120 °C/h °C 122
Property Name Standard Test condition Unit Value
Flexural modulus ISO 178 2 mm/min MPa 2000
Flexural stress at 3.5 % strain ISO 178 2 mm/min MPa 65
Izod notched impact strength ISO 180/A 23 °C kJ/m² 60
Izod notched impact strength ISO 180/A -20 °C kJ/m² 45
Nominal strain at break ISO 527-1,-2 50 mm/min % > 50
Stress at break ISO 527-1,-2 50 mm/min MPa 45
Tensile modulus ISO 527-1,-2 1 mm/min MPa 2000
Yield strain ISO 527-1,-2 50 mm/min % 4.5
Yield stress ISO 527-1,-2 50 mm/min MPa 55
Property Name Standard Test condition Unit Value
Melt volume-flow rate ISO 1133 260 °C/ 5 kg cm³/10 min 21
Molding shrinkage, parallel/normal b.o. ISO 2577 Value range based on general practical experience (600bar) % 0.7 - 0.9
Post- shrinkage, parallel/normal b.o. ISO 2577 Value range based on general practical experience (1h; 90°C) % 0.1 - 0.2
Property Name Standard Test condition Unit Value
Comparative tracking index CTI IEC 60112 Solution A Rating 225
Comparative tracking index CTI M IEC 60112 Solution B Rating 100
Surface resistivity IEC 62631-3-2 Ohm >1E15
Volume resistivity IEC 62631-3-1 Ohm*m >1E14
Property Name Standard Test condition Unit Value
Density ISO 1183-1 kg/m³ 1220

Downloads

Technical Data Sheet
Download
Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com

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