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Makrolon® MD4821 RE

Polycarbonate; impact modified; 20 % glass fiber reinforced; medium viscosity; easy release; improved chemical resistance compared to standard Makrolon grades

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Product Types

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Material

Plastics
CQ renewable attributed

General Characterization

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Storage Conditions

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Sampling

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Packaging Type

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Technical Properties & Datasheets

Applications

Injection molding; Housing parts; Information technology; Electrical/electronic

Sustainability

Partially bio-circular grade / Attributed via mass balance (according to ISCC PLUS Standard). For specific content see sustainability declaration.

Typical Values

Rheological properties

Property Test Condition Value Unit Standard
Melt Volume-flow Rate (MVR) 300 °C/ 1.2 kg 9 cm³/10 min ISO 1133-1
Molding Shrinkage, parallel / normal Value range based on general practical experience 0.20 - 0.50 % b.o. ISO 2577

Mechanical properties (23 °C/50 % r. h.)

Property Test Condition Value Unit Standard
Tensile modulus 1 mm/min 6,100 MPa ISO 527-1,-2
Strain at Break 5 mm/min 3 % ISO 527-1,-2
Stress at Break 5 mm/min 98 MPa ISO 527-1,-2
Flexural Modulus 2 mm/min 5,640 MPa ISO 178
Flexural Strength 2 mm/min 158 MPa ISO 178
Izod Impact Strength 23 °C 50 kJ/m² ISO 180/U
Izod Notched Impact Strength 23 °C/ 3 mm 18 kJ/m² ISO 7391/b.o. ISO 180/A
Izod Notched Impact Strength -30 °C/ 3 mm 15 kJ/m² ISO 21305/based on ISO 180/A
Izod Notched Impact Strength 23 °C/ 3 mm 19 kJ/m² ISO 21305/based on ISO 180/A
Charpy Notched Impact Strength -30 °C/ 3 mm 13 kJ/m² ISO 21305/based on ISO 179/1eA
Charpy Notched Impact Strength 23 °C/ 3 mm 17 kJ/m² ISO 21305/based on ISO 179/1eA
Puncture Impact Properties - Maximum Force 23 °C 1,120 N ISO 6603-2
Puncture Energy 23 °C 8 J ISO 6603-2

Thermal properties

Property Test Condition Value Unit Standard
Temperature of Deflection under Load 0.45 MPa 142 °C ISO 75-1,-2
Temperature of Deflection under Load 1.80 MPa 138 °C ISO 75-1,-2
Vicat Softening Temperature 50 N; 120 °C/h 147 °C ISO 306
Vicat Softening Temperature 50 N; 50 °C/h 145 °C ISO 306
Coefficient of Linear Thermal Expansion, parallel 23 to 55 °C 0.23 10⁻⁴/K ISO 11359-1,-2
Coefficient of Linear Thermal Expansion, normal 23 to 55 °C 0.58 10⁻⁴/K ISO 11359-1,-2

Other properties (23 °C)

Property Test Condition Value Unit Standard
Density 1,310 kg/m³ ISO 1183-1

Processing conditions for test specimens

Property Test Condition Value Unit Standard
Injection Molding - Melt Temperature 310 °C ISO 294
Injection Molding - Mold Temperature 90 °C ISO 294

Recommended processing and drying conditions

Property Test Condition Value Unit Standard
Dry Air Drying Temperature 120 °C
Dry Air Drying Time 4 - 6 h

Downloads

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