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Makrolon® 2808
Polycarbonate; MVR (300 °C/1.2 kg) 9.0 cm³/10 min; medium viscosity; biocompatible according to many ISO 10993-1 test requirements; available as transparent natural color (code 000000) only
About
Product Types
Material
No data available
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
9
cm³/10min
ISO 1133-1
Melt Mass-flow Rate (MFR)
300 °C/ 1.2 kg
10
g/10 min
ISO 1133
Molding Shrinkage, parallel
60x60x2 mm/ 500 bar
0.7
%
ISO 294-4
Molding Shrinkage, normal
60x60x2 mm/ 500 bar
0.75
%
ISO 294-4
Molding Shrinkage, parallel / normal
Value range based on general practical experience
0.6 - 0.8
%
b.o. ISO 2577
Mechanical properties (23 °C/50 % r. h.)
Property Test Condition Value Unit Standard
Tensile modulus
1 mm/min
2,350
MPa
ISO 527-1,-2
Yield Stress
50 mm/min
65
MPa
ISO 527-1,-2
Yield Strain
50 mm/min
6.1
%
ISO 527-1,-2
Nominal Strain at Break
50 mm/min
> 50
%
ISO 527-1,-2
Strain at Break
50 mm/min
135
%
b.o. ISO 527-1,-2
Stress at Break
50 mm/min
75
MPa
ISO 527-1,-2
Flexural Modulus
2 mm/min
2,350
MPa
ISO 178
Flexural Strength
2 mm/min
96
MPa
ISO 178
Flexural Strain at Flexural Strength
2 mm/min
7
%
ISO 178
Flexural Stress at 3.5 % Flexural Strain
2 mm/min
72
MPa
ISO 178
Izod Notched Impact Strength
-30 °C/ 3 mm
15
kJ/m²
Izod Notched Impact Strength
23 °C/ 3 mm
70
kJ/m²
Izod Notched Impact Strength
23 °C/ 3 mm
70
kJ/m²
ISO 21305/based on ISO 180/A
Izod Notched Impact Strength
-30 °C/ 3 mm
15
kJ/m²
ISO 21305/based on ISO 180/A
Charpy Notched Impact Strength
-30 °C/ 3 mm
18
kJ/m²
Charpy Notched Impact Strength
23 °C/ 3 mm
75
kJ/m²
Charpy Notched Impact Strength
23 °C/ 3 mm
75
kJ/m²
ISO 21305/based on ISO 179/1eA
Puncture Impact Properties - Maximum Force
-30 °C
6,300
N
ISO 6603-2
Puncture Impact Properties - Maximum Force
23 °C
5,400
N
ISO 6603-2
Puncture Energy
-30 °C
65
J
ISO 6603-2
Puncture Energy
23 °C
60
J
ISO 6603-2
Ball Indentation Hardness
113
N/mm²
ISO 2039-1
Tensile Creep Modulus
1000 h
1,900
MPa
ISO 899-1
Tensile Creep Modulus
1 h
2,200
MPa
ISO 899-1
Thermal properties
Property Test Condition Value Unit Standard
Temperature of Deflection under Load
0.45 MPa
140
°C
ISO 75-1,-2
Temperature of Deflection under Load
1.80 MPa
128
°C
ISO 75-1,-2
Vicat Softening Temperature
50 N; 50 °C/h
147
°C
ISO 306
Vicat Softening Temperature
50 N; 120 °C/h
148
°C
ISO 306
Glass Transition Temperature
10 °C/min
148
°C
ISO 11357-1,-2
Coefficient of Linear Thermal Expansion, parallel
23 to 55 °C
0.65
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
Oxygen Index
Method A
28
%
ISO 4589-2
Thermal Conductivity, through-plane
23 °C; 50 % r. h.
0.2
W/(m·K)
ISO 8302
Resistance to Heat (Ball Pressure Test)
140
°C
IEC 60695-10-2
Glow Wire Test (GWIT)
3.0 mm
900
°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
Flash-Ignition Temperature
480
°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
IEC 60250
Relative Permittivity
100 Hz
3.1
IEC 60250
Dielectric Dissipation Factor
1 MHz
95
10⁻⁴
IEC 60250
Volume Resistivity
1.00E+14
Ω·m
IEC 60093
Volume Resistivity
1.00E+14
Ω·m
IEC 62631-3-1
Surface Resistivity
1.00E+16
Ω
IEC 60093
Surface Resistivity
1.00E+16
Ω
IEC 62631-3-2
Electric Strength
1 mm
34
kV/mm
IEC 60243-1
Comparative Tracking Index (CTI)
Solution A
250
IEC 60112
Other properties (23 °C)
Property Test Condition Value Unit Standard
Water Absorption (Saturation Value)
Water at 23 °C
0.3
%
ISO 62
Water Absorption (Equilibrium Value)
23 °C; 50 % r. h.
0.12
%
ISO 62
Density
1,200
kg/m³
ISO 1183-1
Bulk Density
Pellets
660
g/cm³
ISO 60
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
89
%
ISO 13468-2
Luminous Transmittance (Clear Transparent Materials)
1 mm
89
%
ISO 13468-2
Haze for Transparent Materials
3 mm
< 0.8
%
ISO 14782
Refractive Index
Procedure A
1.586
ISO 489
Processing conditions for test specimens
Property Test Condition Value Unit Standard
Injection Molding - Melt Temperature
300
°C
ISO 294
Injection Molding - Mold Temperature
80
°C
ISO 294
Injection Molding - Injection Velocity
200
mm/s
ISO 294
Recommended processing and drying conditions
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