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Covestro Makrolon® LED2245 Polycarbonate
Categories: Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate, Molded

Material Notes: MVR (300 °C/1.2 kg) 34 cm³/10 min; light guides; optics and lenses; PC with highest transmission; low viscosity; easy release; injection molding - melt temperature 280 - 320 °C

As of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Bulk Density 0.660 g/cc0.0238 lb/in³pellets; ISO 60
Density 1.19 g/cc0.0430 lb/in³ISO 1183
Moisture Absorption at Equilibrium 0.12 %0.12 %ISO 62
Water Absorption at Saturation 0.30 %0.30 %ISO 62
Linear Mold Shrinkage, Flow 0.0065 cm/cm0.0065 in/in60x60x2 mm; 500 bar; ISO 294-4
Linear Mold Shrinkage, Transverse 0.0070 cm/cm0.0070 in/in60x60x2 mm; 500 bar; ISO 294-4
Melt Flow 37 g/10 min
@Load 1.20 kg,
Temperature 300 °C
37 g/10 min
@Load 2.65 lb,
Temperature 572 °F
ISO 1133
 
Mechanical PropertiesMetricEnglishComments
Ball Indentation Hardness 115 MPa16700 psi² ISO 2039-1
Tensile Strength at Break 60.0 MPa8700 psi50 mm/min; ISO 527-1/-2
Tensile Strength, Yield 63.0 MPa9140 psi50 mm/min; ISO 527-1/-2
Elongation at Break >= 50 %>= 50 %Nominal, 50 mm/min; ISO 527-1/-2
 125 %125 %50 mm/min; ISO 527-1/-2
Elongation at Yield 6.0 %6.0 %50 mm/min; ISO 527-1/-2
Tensile Modulus 2.35 GPa341 ksi1 mm/min; ISO 527-1/-2
Flexural Strength 97.0 MPa14100 psi2 mm/min; ISO 178
Flexural Yield Strength 73.0 MPa
@Strain 3.5 %
10600 psi
@Strain 3.5 %
2 mm/min; ISO 178
Flexural Modulus 2.35 GPa341 ksi2 mm/min; ISO 178
Flexural Strain at Yield 7.1 %7.1 %2 mm/min; ISO 178
Izod Impact, Notched (ISO)  1.20 kJ/m²
@Thickness 3.00 mm,
Temperature -30.0 °C
0.571 ft-lb/in²
@Thickness 0.118 in,
Temperature -22.0 °F
complete break; ISO 7391/b.o. ISO 180-A
 55.0 kJ/m²
@Thickness 3.00 mm,
Temperature 23.0 °C
26.2 ft-lb/in²
@Thickness 0.118 in,
Temperature 73.4 °F
partial break; ISO 7391/b.o. ISO 180-A
Charpy Impact Unnotched NBNBISO 179/1eU
 NB
@Temperature -30.0 °C
NB
@Temperature -22.0 °F
ISO 179/1eU
 NB
@Temperature -60.0 °C
NB
@Temperature -76.0 °F
ISO 179/1eU
Charpy Impact, Notched  1.20 J/cm²
@Thickness 3.00 mm,
Temperature -30.0 °C
5.71 ft-lb/in²
@Thickness 0.118 in,
Temperature -22.0 °F
complete break; ISO 7391/b.o. ISO 179-1eA
 6.00 J/cm²
@Thickness 3.00 mm,
Temperature 23.0 °C
28.6 ft-lb/in²
@Thickness 0.118 in,
Temperature 73.4 °F
partial break; ISO 7391/b.o. ISO 179-1eA
Impact 49004900Puncture - maximum force (N); ISO 6603-2
 5900
@Temperature -30.0 °C
5900
@Temperature -22.0 °F
Puncture - maximum force (N); ISO 6603-2
Puncture Energy 55.0 J40.6 ft-lbISO 6603-2
 60.0 J
@Temperature -30.0 °C
44.3 ft-lb
@Temperature -22.0 °F
ISO 6603-2
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+14 ohm-cm1.00e+14 ohm-cmIEC 60093
Surface Resistance 1.00e+16 ohm1.00e+16 ohmIEC 60093
Dielectric Constant  3.0
@Frequency 1e+6 Hz
3.0
@Frequency 1e+6 Hz
IEC 60250
 3.1
@Frequency 100 Hz
3.1
@Frequency 100 Hz
IEC 60250
Dielectric Strength 34.0 kV/mm864 kV/in1 mm; IEC 60243-1
Dissipation Factor  0.00050
@Frequency 100 Hz
0.00050
@Frequency 100 Hz
IEC 60250
 0.0090
@Frequency 1e+6 Hz
0.0090
@Frequency 1e+6 Hz
IEC 60250
Comparative Tracking Index 125 V125 VCIT M; Solution B; IEC 60112
 250 V250 VSolution A; IEC 60112
 
Thermal PropertiesMetricEnglishComments
CTE, linear, Parallel to Flow 65.0 µm/m-°C
@Temperature 23.0 - 55.0 °C
36.1 µin/in-°F
@Temperature 73.4 - 131 °F
ISO 11359-1/-2
CTE, linear, Transverse to Flow 65.0 µm/m-°C
@Temperature 23.0 - 55.0 °C
36.1 µin/in-°F
@Temperature 73.4 - 131 °F
ISO 11359-1/-2
Thermal Conductivity 0.200 W/m-K1.39 BTU-in/hr-ft²-°Fcross-flow; ISO 8302
Hot Ball Pressure Test 136 °C277 °FIEC 60695-10-2
Deflection Temperature at 0.46 MPa (66 psi) 138 °C280 °FISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi) 125 °C257 °FISO 75-1/-2
Vicat Softening Point 145 °C293 °F50°C/h 50N; ISO 306
 146 °C295 °F120°C/h 50N; ISO 306
Glass Transition Temp, Tg 145 °C293 °FISO 11357-1/-2
UL RTI, Electrical 125 °C
@Thickness 1.50 mm
257 °F
@Thickness 0.0591 in
UL 746B
UL RTI, Mechanical with Impact 115 °C
@Thickness 1.50 mm
239 °F
@Thickness 0.0591 in
UL 746B
UL RTI, Mechanical without Impact 125 °C
@Thickness 1.50 mm
257 °F
@Thickness 0.0591 in
UL 746B
Flammability, UL94  V-2
@Thickness 1.50 mm
V-2
@Thickness 0.0591 in
IEC 60695-11-10
 V-2
@Thickness 2.90 mm
V-2
@Thickness 0.114 in
IEC 60695-11-10
Flash Point 480 °C896 °Fignition; ASTM D1929
 550 °C1020 °Fself ignition; ASTM D1929
Oxygen Index 28 %28 %Method A; ISO 4589-1/-2
Glow Wire Ignition Temperature  875 °C
@Thickness 0.750 mm
1610 °F
@Thickness 0.0295 in
IEC 60695-2-13
 875 °C
@Thickness 1.50 mm
1610 °F
@Thickness 0.0591 in
IEC 60695-2-13
 900 °C
@Thickness 3.00 mm
1650 °F
@Thickness 0.118 in
IEC 60695-2-13
Glow Wire Flammability Index  850 °C
@Thickness 1.00 mm
1560 °F
@Thickness 0.0394 in
IEC 60695-2-12
 875 °C
@Thickness 1.50 mm
1610 °F
@Thickness 0.0591 in
IEC 60695-2-12
 930 °C
@Thickness 3.00 mm
1710 °F
@Thickness 0.118 in
IEC 60695-2-12
 
Optical PropertiesMetricEnglishComments
Refractive Index 1.5841.584ISO 489
Haze <= 0.50 %
@Thickness 3.00 mm
<= 0.50 %
@Thickness 0.118 in
ISO 14782
Transmission, Visible  <= 89 %
@Thickness 3.00 mm
<= 89 %
@Thickness 0.118 in
ISO 13468-2
 <= 89 %
@Thickness 4.00 mm
<= 89 %
@Thickness 0.157 in
ISO 13468-2
 90 %
@Thickness 1.00 mm
90 %
@Thickness 0.0394 in
ISO 13468-2
 90 %
@Thickness 2.00 mm
90 %
@Thickness 0.0787 in
ISO 13468-2
 
Processing PropertiesMetricEnglishComments
Melt Temperature 280 °C536 °FInjection Molding; ISO 294
Mold Temperature 80.0 °C176 °FInjection Molding; ISO 294
Injection Velocity 200 mm/sec7.87 in/secISO 294
 
Descriptive Properties
AvailabilityAsia Pacific
 Europe
 India
 Near East/Africa
 North America
 South and Central America
Eff. thermal diffusivity (m²/s)1E-07
FeatureRelease agent
FormPellets
ProcessInjection Molding
UL recognitionUL\l1.5\n
 UL\lh\n

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