PC from Covestro 3207, a high-impact and UV-resistant PC material, is used for lighting fixtures, traffic equipment, building materials and plastics

PC from Covestro 3207, a high-impact and UV-resistant PC material, is used for lighting fixtures, traffic equipment, building materials and plastics

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Makrolon® 3207 MAS403

Polycarbonate; MVR (300 °C/1.2 kg) 4.0 cm³/10 min; high viscosity; UV stabilized; easy release

Technical Properties & Datasheets

Applications

Typical Values

Rheological properties

Property Test Condition Value Unit Standard
Melt Volume-flow Rate (MVR) 300 °C/ 1.2 kg 4 cm³/10min ISO 1133-1
Molding Shrinkage, parallel 60x60x2 mm 0.7 % ISO 294-4
Molding Shrinkage, normal 60x60x2 mm 0.75 % ISO 294-4

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

Property Test Condition Value Unit Standard
Tensile modulus 1 mm/min 2,400 MPa ISO 527-1,-2
Yield Stress 50 mm/min 65 MPa ISO 527-1,-2
Yield Strain 50 mm/min 6.5 % ISO 527-1,-2
Nominal Strain at Break 50 mm/min > 50 % ISO 527-1,-2
Strain at Break 50 mm/min 120 % b.o. ISO 527-1,-2
Flexural Strength 2 mm/min 96 MPa ISO 178
Flexural Strain at Flexural Strength 2 mm/min 6.8 % ISO 178
Flexural Stress at 3.5 % Flexural Strain 2 mm/min 74 MPa ISO 178
Izod Notched Impact Strength 23 °C/ 3 mm 80 kJ/m² ISO 21305/based on ISO 180/A
Puncture Impact Properties - Maximum Force 23 °C 5,900 N ISO 6603-2
Puncture Energy 23 °C 65 J ISO 6603-2

Thermal properties

Property Test Condition Value Unit Standard
Temperature of Deflection under Load 0.45 MPa 141 °C ISO 75-1,-2
Temperature of Deflection under Load 1.80 MPa 127 °C ISO 75-1,-2
Vicat Softening Temperature 50 N; 50 °C/h 146 °C ISO 306
Glass Transition Temperature 10 °C/min 150 °C ISO 11357-1,-2

Other properties (23 °C)

Property Test Condition Value Unit Standard
Density 1,190 kg/m³ ISO 1183-1

Material specific properties

Property Test Condition Value Unit Standard
Luminous Transmittance (Clear Transparent Materials) 4 mm 87 % ISO 13468-2
Luminous Transmittance (Clear Transparent Materials) 3 mm 88 % ISO 13468-2
Luminous Transmittance (Clear Transparent Materials) 2 mm 88 % ISO 13468-2
Luminous Transmittance (Clear Transparent Materials) 1 mm 89 % ISO 13468-2
Haze for Transparent Materials 3 mm 0.4 % ISO 14782

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
Injection Molding - Injection Velocity 200 mm/s ISO 294

Recommended processing and drying conditions

Property Test Condition Value Unit Standard
Standard Melt Temperature 310 °C
Barrel Temperatures Nozzle 300 - 310 °C
Barrel Temperatures Front 290 - 300 °C
Barrel Temperatures Middle 280 - 290 °C
Barrel Temperatures Rear 260 - 270 °C
Mold Temperatures 80 - 120 °C
Hold Pressure (% of Injection Pressure) 50 - 75 %
Plastic Back Pressure (specific) 50 - 150 bar
Peripheral Screw Speed 0.05 - 0.2 m/s
Shot-to-Cylinder Size 30 - 70 %
Dry Air Drying Temperature 120 °C
Dry Air Drying Time 2 - 3 h
Moisture Content max. (%) ≤ 0.02 %
Vent Depth 0.025 - 0.075 mm

 

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