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Covestro Makrolon® 2805 MAS145 Polycarbonate

Category Polymer , Thermoplastic , Polycarbonate (PC) , Polycarbonate, Molded
Manufacturer Covestro
Trade Name Makrolon®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Covestro Makrolon® 2805 MAS145 Polycarbonate.pdf
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Material Notes:
Main characteristics:• High toughness• Good heat resistance• Glass-like transparency, optical quality• High dimensional accuracy and stabilityGrade characteristics:• General purpose• Medium viscosity; easy releaseAs of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.
Physical Properties Metric English Comments
Bulk Density 0.660 g/cc
0.0238 lb/in³
pellets; ISO 60
Density 1.20 g/cc
0.0434 lb/in³
ISO 1183-1
Moisture Absorption at Equilibrium 0.12 %
0.12 %
ISO 62, 50% RH
Water Absorption at Saturation 0.30 %
0.30 %
ISO 62
Water Vapor Transmission 15.0 g/m²/day

@Thickness 0.100 mm
 0.966 g/100 in²/day

@Thickness 0.00394 in
 85% RH, film; ISO 15106-1
Oxygen Transmission 65.0 cc-mm/m²-24hr-atm

@Thickness 0.100 mm
 165 cc-mil/100 in²-24hr-atm

@Thickness 0.00394 in
 650 cc/m²-24hr-bar; film; b.o. ISO 2556
70.0 cc-mm/m²-24hr-atm

@Thickness 0.0254 mm
 178 cc-mil/100 in²-24hr-atm

@Thickness 0.00100 in
 2760 cc/m²-24hr-bar; film; b.o. ISO 2556
Nitrogen Transmission 12.0 cc-mm/m²-24hr-atm

@Thickness 0.100 mm
 30.5 cc-mil/100 in²-24hr-atm

@Thickness 0.00394 in
 120 cc/m²-24hr-bar; film; b.o. ISO 2556
13.0 cc-mm/m²-24hr-atm

@Thickness 0.0254 mm
 33.0 cc-mil/100 in²-24hr-atm

@Thickness 0.00100 in
 510 cc/m²-24hr-bar; film; b.o. ISO 2556
Carbon Dioxide Transmission 380 cc-mm/m²-24hr-atm

@Thickness 0.100 mm
 965 cc-mil/100 in²-24hr-atm

@Thickness 0.00394 in
 3800 cc/m²-24hr-bar; film; b.o. ISO 2556
429 cc-mm/m²-24hr-atm

@Thickness 0.0254 mm
 1090 cc-mil/100 in²-24hr-atm

@Thickness 0.00100 in
 16900 cc/m²-24hr-bar; film; b.o. ISO 2556
Linear Mold Shrinkage, Flow 0.0065 cm/cm

@Thickness 2.00 mm
 0.0065 in/in

@Thickness 0.0787 in
 60x60x2 mm; 500 bar; ISO 294-4
Linear Mold Shrinkage, Transverse 0.0070 cm/cm

@Thickness 2.00 mm
 0.0070 in/in

@Thickness 0.0787 in
 60x60x2 mm; 500 bar; ISO 294-4
Melt Flow 10 g/10 min

@Load 1.20 kg,
Temperature 300 °C
 10 g/10 min

@Load 2.65 lb,
Temperature 572 °F
 ISO 1133
Mechanical Properties Metric English Comments
Puncture Resistance 5400 N

@Temperature 23.0 °C
 1210 lb (f)

@Temperature 73.4 °F
 ISO 6603-2
6300 N

@Temperature -30.0 °C
 1420 lb (f)

@Temperature -22.0 °F
 ISO 6603-2
Ball Indentation Hardness 115 MPa
16700 psi
ISO 2039-1
Tensile Strength at Break 70.0 MPa
10200 psi
50 mm/min; ISO 527-1,-2
Tensile Strength, Yield 66.0 MPa
9570 psi
50 mm/min; ISO 527-1,-2
Elongation at Break >= 50 %
>= 50 %
Nominal, 50 mm/min; ISO 527-1,-2
130 %
130 %
50 mm/min; b.o. ISO 527-1,-2
Elongation at Yield 6.2 %
6.2 %
50 mm/min; ISO 527-1,-2
Tensile Modulus 2.40 GPa
348 ksi
1 mm/min; ISO 527-1,-2
Flexural Strength 97.0 MPa
14100 psi
2 mm/min; ISO 178
Flexural Yield Strength 73.0 MPa

@Strain 3.50 %
 10600 psi

@Strain 3.50 %
 2 mm/min; ISO 178
Flexural Modulus 2.40 GPa
348 ksi
2 mm/min; ISO 178
Izod Impact, Notched (ISO) 14.0 kJ/m²

@Thickness 3.20 mm,
Temperature -30.0 °C
 6.66 ft-lb/in²

@Thickness 0.126 in,
Temperature -22.0 °F
 complete break; b.o. ISO 180-A
85.0 kJ/m²

@Thickness 3.20 mm,
Temperature 23.0 °C
 40.4 ft-lb/in²

@Thickness 0.126 in,
Temperature 73.4 °F
 partial break; b.o. ISO 180-A
Charpy Impact Unnotched NB

@Temperature 23.0 °C
 NB

@Temperature 73.4 °F
 ISO 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 1.60 J/cm²

@Thickness 3.00 mm,
Temperature -30.0 °C
 7.61 ft-lb/in²

@Thickness 0.118 in,
Temperature -22.0 °F
 complete break; ISO 7391/b.o. ISO 179-1eA
7.50 J/cm²

@Thickness 3.00 mm,
Temperature 23.0 °C
 35.7 ft-lb/in²

@Thickness 0.118 in,
Temperature 73.4 °F
 partial break; ISO 7391/b.o. ISO 179-1eA
Puncture Energy 60.0 J

@Temperature 23.0 °C
 44.3 ft-lb

@Temperature 73.4 °F
 ISO 6603-2
65.0 J

@Temperature -30.0 °C
 47.9 ft-lb

@Temperature -22.0 °F
 ISO 6603-2
Tensile Creep Modulus, 1 hour 2200 MPa
319000 psi
ISO 899-1
Tensile Creep Modulus, 1000 hours 1900 MPa
276000 psi
ISO 899-1
Thermal Properties Metric English Comments
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-K
1.39 BTU-in/hr-ft²-°F
cross-flow; ISO 8302
Hot Ball Pressure Test 136 °C
277 °F
IEC 60695-10-2
Deflection Temperature at 0.46 MPa (66 psi) 137 °C
279 °F
ISO 75-1,-2
Deflection Temperature at 1.8 MPa (264 psi) 125 °C
257 °F
ISO 75-1,-2
Vicat Softening Point 144 °C

@Load 5.10 kg
 291 °F

@Load 11.2 lb
 50°C/h; ISO 306
146 °C

@Load 5.10 kg
 295 °F

@Load 11.2 lb
 120°C/h; ISO 306
Glass Transition Temp, Tg 145 °C
293 °F
10°C/min; ISO 11357-1,-2
UL RTI, Electrical 125 °C
257 °F
UL 746B
UL RTI, Mechanical with Impact 115 °C
239 °F
UL 746B
UL RTI, Mechanical without Impact 125 °C
257 °F
UL 746B
Flammability, UL94 HB

@Thickness 2.50 mm
 HB

@Thickness 0.0984 in
V-2

@Thickness 0.750 mm
 V-2

@Thickness 0.0295 in
Flash Point 480 °C
896 °F
ASTM D 1929
550 °C
1020 °F
self ignition; ASTM D 1929
Oxygen Index 28 %
28 %
Method A; ISO 4589-2
Glow Wire Test 750 °C

@Thickness 1.50 mm
 1380 °F

@Thickness 0.0591 in
 b.o. EDF HN60 E.02
750 °C

@Thickness 3.00 mm
 1380 °F

@Thickness 0.118 in
 b.o. EDF HN60 E.02
850 °C

@Thickness 0.750 mm
 1560 °F

@Thickness 0.0295 in
 GWFI; IEC 60695-2-12
850 °C

@Thickness 1.50 mm
 1560 °F

@Thickness 0.0591 in
 GWFI; IEC 60695-2-12
875 °C

@Thickness 0.750 mm
 1610 °F

@Thickness 0.0295 in
 GWIT; IEC 60695-2-13
875 °C

@Thickness 1.00 mm
 1610 °F

@Thickness 0.0394 in
 GWIT; IEC 60695-2-13
Electrical Properties Metric English Comments
Volume Resistivity 1.00e+16 ohm-cm
1.00e+16 ohm-cm
IEC 60093
Surface Resistance 1.00e+16 ohm
1.00e+16 ohm
IEC 60093
Dielectric Constant 3.0

@Frequency 1.00e+6 Hz
 3.0

@Frequency 1.00e+6 Hz
 IEC 60250
3.1

@Frequency 100 Hz
 3.1

@Frequency 100 Hz
 IEC 60250
Dielectric Strength 34.0 kV/mm

@Thickness 1.00 mm
 864 kV/in

@Thickness 0.0394 in
 IEC 60243-1
Dissipation Factor 0.00050

@Frequency 100 Hz
 0.00050

@Frequency 100 Hz
 IEC 60250
0.0090

@Frequency 1.00e+6 Hz
 0.0090

@Frequency 1.00e+6 Hz
 IEC 60250
Comparative Tracking Index 125 V
125 V
CTI M; Solution B; IEC 60112
250 V
250 V
Solution A; IEC 60112
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