PC 9425 Covestro High viscosity, high-temperature resistant, flame-retardant grade, injection molding grade

PC 9425 Covestro High viscosity, high-temperature resistant, flame-retardant grade, injection molding grade

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Makrolon® 9425

Polycarbonate; 20 % glass fiber reinforced; flame retardant; MVR (300 °C/1.2 kg) 5.0 cm³/10 min; UL 94V-0/1.5 mm and 5VA/3.0 mm; high viscosity; easy release; available in opaque colors only

About

Product Types

  • Polycarbonate

Material

Plastics
Dimensionally stable, Flame retardant

General Characterization

No data available

Technical Properties & Datasheets

Applications

Typical Values

Rheological properties

Property Test Condition Value Unit Standard
Melt Volume-flow Rate (MVR) 300 °C/ 1.2 kg 5 cm³/10min ISO 1133-1
Melt Mass-flow Rate (MFR) 300 °C/ 1.2 kg 6 g/10 min ISO 1133
Molding Shrinkage, parallel 60x60x2 mm/ 500 bar 0.35 % ISO 294-4
Molding Shrinkage, normal 60x60x2 mm/ 500 bar 0.45 % ISO 294-4
Molding Shrinkage, parallel / normal Value range based on general practical experience 0.3 - 0.5 % b.o. ISO 2577

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

Property Test Condition Value Unit Standard
Tensile modulus 1 mm/min 5,800 MPa ISO 527-1,-2
Strain at Break 5 mm/min 2.6 % ISO 527-1,-2
Stress at Break 5 mm/min 86 MPa ISO 527-1,-2
Flexural Modulus 2 mm/min 5,500 MPa ISO 178
Flexural Strength 2 mm/min 135 MPa ISO 178
Flexural Strain at Flexural Strength 2 mm/min 3.5 % ISO 178
Izod Notched Impact Strength 23 °C/ 3 mm 8 kJ/m² ISO 21305/based on ISO 180/A
Charpy Notched Impact Strength 23 °C/ 3 mm 8 kJ/m² ISO 21305/based on ISO 179/1eA
Charpy Impact Strength -60 °C 50 kJ/m² ISO 179/1eU
Charpy Impact Strength -30 °C 50 kJ/m² ISO 179/1eU
Charpy Impact Strength 23 °C 40 kJ/m² ISO 179/1eU
Puncture Impact Properties - Maximum Force -30 °C 900 N ISO 6603-2
Puncture Impact Properties - Maximum Force 23 °C 900 N ISO 6603-2
Puncture Energy -30 °C 5 J ISO 6603-2
Puncture Energy 23 °C 5 J ISO 6603-2
Ball Indentation Hardness 148 N/mm² ISO 2039-1
Tensile Creep Modulus 1000 h 5,200 MPa ISO 899-1
Tensile Creep Modulus 1 h 5,700 MPa ISO 899-1

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 148 °C ISO 306
Vicat Softening Temperature 50 N; 50 °C/h 146 °C ISO 306
Coefficient of Linear Thermal Expansion, parallel 23 to 55 °C 0.3 10⁻⁴/K ISO 11359-1,-2
Coefficient of Linear Thermal Expansion, normal 23 to 55 °C 0.65 10⁻⁴/K ISO 11359-1,-2
Burning Behaviour 0.5 mm V-2 UL 94
Burning Behaviour 3.0 mm 5VA UL 94
Burning Behaviour 1.5 mm V-0 UL 94
Burning Rate (US-FMVSS-302) >=1.0 mm PASSED ISO 3795
Oxygen Index Method A 35 % ISO 4589-2
Thermal Conductivity, through-plane 23 °C; 50 % r. h. 0.23 W/(m·K) ISO 8302
Resistance to Heat (Ball Pressure Test) 136 °C IEC 60695-10-2
Relative Temperature Index (Tensile Impact Strength) 1.5 mm 125 °C UL 746B
Relative Temperature Index (Electric Strength) 1.5 mm 130 °C UL 746B
Glow Wire Test (GWFI) 3.0 mm 960 °C IEC 60695-2-12
Glow Wire Test (GWFI) 1.5 mm 960 °C IEC 60695-2-12
Glow Wire Test (GWFI) 0.75 mm 960 °C IEC 60695-2-12
Glow Wire Test (GWIT) 3.0 mm 875 °C IEC 60695-2-13
Glow Wire Test (GWIT) 1.5 mm 875 °C IEC 60695-2-13
Glow Wire Test (GWIT) 0.75 mm 875 °C IEC 60695-2-13
Application of Flame from Small Burner 2 mm B2 DIN 4102
Application of Flame from Small Burner Method K and F/ 2.0 mm K1, F1 DIN 53438-1,-3
Needle-flame Test Method F/ 3.0 mm 120 °C IEC 60695-11-5
Needle-flame Test Method F/ 2.0 mm 120 °C IEC 60695-11-5
Needle-flame Test Method F/ 1.5 mm 120 °C IEC 60695-11-5
Needle-flame Test Method K/ 3.0 mm 120 °C IEC 60695-11-5
Needle-flame Test Method K/ 2.0 mm 120 °C IEC 60695-11-5
Needle-flame Test Method K/ 1.5 mm 60 °C IEC 60695-11-5
Flash-Ignition Temperature 470 °C ASTM D1929
Self-Ignition Temperature 550 °C ASTM D1929

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

Property Test Condition Value Unit Standard
Relative Permittivity 1 MHz 3.3 IEC 60250
Relative Permittivity 100 Hz 3.3 IEC 60250
Dielectric Dissipation Factor 1 MHz 90 10⁻⁴ IEC 60250
Dielectric Dissipation Factor 100 Hz 10 10⁻⁴ IEC 60250
Volume Resistivity 1E14 Ω·m IEC 62631-3-1
Surface Resistivity 1E16 Ω IEC 62631-3-2
Electric Strength 1 mm 36 kV/mm IEC 60243-1
Comparative Tracking Index (CTI) Solution A 175 IEC 60112
Comparative Tracking Index (CTI M) Solution B 125 IEC 60112
Electrolytic Corrosion A1 IEC 60426

Other properties (23 °C)

Property Test Condition Value Unit Standard
Water Absorption (Saturation Value) Water at 23 °C 0.24 % ISO 62
Water Absorption (Equilibrium Value) 23 °C; 50 % r. h. 0.1 % ISO 62
Density 1,340 kg/m³ ISO 1183-1
Bulk Density Pellets 640 g/cm³ ISO 60
Glass Fiber Content Method A 20 % b.o. ISO 3451-1

Processing conditions for test specimens

Property Test Condition Value Unit Standard
Injection Molding - Melt Temperature 300 °C ISO 294
Injection Molding - Mold Temperature 110 °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 300 °C
Barrel Temperatures Nozzle 290 - 300 °C
Barrel Temperatures Front 280 - 290 °C
Barrel Temperatures Middle 270 - 280 °C
Barrel Temperatures Rear 250 - 260 °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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