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Master Bond adhesives

Covestro Makrolon® 1881 Polycarbonate
Categories: Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate, Impact Modified; Polycarbonate, Molded; Polycarbonate, UV Stabilized

Material Notes: ISO Shortname: ISO 7391-PC,MLPR,(,,)-18-9

MVR (300 °C/1.2 kg) 19 cm³/10 min; impact modified; improved ultrasonic weldability; low viscosity; UV stabilized; easy release; injection molding - melt temperature 280 - 320 °C; available in opaque colors only

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 0.640 g/cc0.0231 lb/in³pellets; ISO 60
Density 1.20 g/cc0.0434 lb/in³ISO 1183-1
Moisture Absorption at Equilibrium 0.12 %0.12 %ISO 62, 50% RH
Water Absorption at Saturation 0.30 %0.30 %ISO 62
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 20 g/10 min
@Load 1.20 kg,
Temperature 300 °C
20 g/10 min
@Load 2.65 lb,
Temperature 572 °F
ISO 1133
 
Mechanical PropertiesMetricEnglishComments
Puncture Resistance  4900 N
@Temperature 23.0 °C
1100 lb (f)
@Temperature 73.4 °F
ISO 6603-2
 5800 N
@Temperature -30.0 °C
1300 lb (f)
@Temperature -22.0 °F
ISO 6603-2
Ball Indentation Hardness 113 MPa16400 psiISO 2039-1
Tensile Strength at Break 60.0 MPa8700 psi50 mm/min; ISO 527-1,-2
Tensile Strength, Yield 60.0 MPa8700 psi50 mm/min; ISO 527-1,-2
Elongation at Break >= 50 %>= 50 %Nominal, 50 mm/min; ISO 527-1,-2
 110 %110 %50 mm/min; b.o. ISO 527-1,-2
Elongation at Yield 5.8 %5.8 %50 mm/min; ISO 527-1,-2
Tensile Modulus 2.30 GPa334 ksi1 mm/min; ISO 527-1,-2
Flexural Strength 93.0 MPa13500 psi2 mm/min; ISO 178
Flexural Yield Strength 70.0 MPa
@Strain 3.5 %
10200 psi
@Strain 3.5 %
2 mm/min; ISO 178
Flexural Modulus 2.30 GPa334 ksi2 mm/min; ISO 178
Flexural Strain at Yield 6.8 %6.8 %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
 70.0 kJ/m²
@Thickness 3.20 mm,
Temperature 23.0 °C
33.3 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  1.40 J/cm²
@Thickness 3.00 mm,
Temperature -30.0 °C
6.66 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
Puncture Energy  50.0 J
@Temperature 23.0 °C
36.9 ft-lb
@Temperature 73.4 °F
ISO 6603-2
 55.0 J
@Temperature -30.0 °C
40.6 ft-lb
@Temperature -22.0 °F
ISO 6603-2
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+16 ohm-cm1.00e+16 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/mm
@Thickness 1.00 mm
864 kV/in
@Thickness 0.0394 in
IEC 60243-1
Dissipation Factor  0.0010
@Frequency 100 Hz
0.0010
@Frequency 100 Hz
IEC 60250
 0.0105
@Frequency 1e+6 Hz
0.0105
@Frequency 1e+6 Hz
IEC 60250
Comparative Tracking Index 125 V125 VCTI 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 134 °C273 °FIEC 60695-10-2
Deflection Temperature at 0.46 MPa (66 psi) 136 °C277 °FISO 75-1,-2
Deflection Temperature at 1.8 MPa (264 psi) 123 °C253 °FISO 75-1,-2
Vicat Softening Point  144 °C
@Load 5.10 kg
291 °F
@Load 11.2 lb
50°C/h; ISO 306
 145 °C
@Load 5.10 kg
293 °F
@Load 11.2 lb
120°C/h; ISO 306
Flash Point 460 °C860 °FASTM D 1929
 540 °C1000 °Fself ignition; ASTM D 1929
Oxygen Index 30 %30 %Method A; IEC 4589-2
Glow Wire Ignition Temperature  825 °C
@Thickness 0.750 mm
1520 °F
@Thickness 0.0295 in
IEC 60695-2-13
 825 °C
@Thickness 1.50 mm
1520 °F
@Thickness 0.0591 in
IEC 60695-2-13
 850 °C
@Thickness 3.00 mm
1560 °F
@Thickness 0.118 in
IEC 60695-2-13
Glow Wire Flammability Index  850 °C
@Thickness 0.750 mm
1560 °F
@Thickness 0.0295 in
IEC 60695-2-12
 850 °C
@Thickness 1.50 mm
1560 °F
@Thickness 0.0591 in
IEC 60695-2-12
 960 °C
@Thickness 3.00 mm
1760 °F
@Thickness 0.118 in
IEC 60695-2-12
Shrinkage 0.0050 - 0.0070 %0.0050 - 0.0070 %b.o. ISO 2577
 
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
Electrolytic CorrosionA1IEC 60426

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