Makroblend® KU2-7912/4

About
(PC+PBT)-blend, impact modified, Injection molding grade, high toughness at low temperatures, ideal for painted applications, unreinforced&&

Product Description
SupplierCovestro
GenericPC+PBT
Material StatusCommercial: Active
FeaturesHigh impact resistance,Sprayable,Low temperature toughness,HB
AvailabilitysAfrica & Middle East ,North America,Latin America,Asia Pacific,Europe
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.20g/cm³ISO 1183
Apparent density0.70g/cm³ISO 60
Melt Volume Rate
260℃,5 kg16.0cm³/10minISO 1133
Water absorption rate
Saturation, 23 ℃0.50%ISO 62
Equilibrium, 23 ℃, 50% RH0.20%ISO 62

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength ISO 179/1eA
-30℃45kJ/m²ISO 179/1eA
23℃60kJ/m²ISO 179/1eA
Charpy Unnotch Impact strength ISO 179/1eU
-30℃No Break ISO 179/1eU
23℃No Break ISO 179/1eU
Impact strength of cantilever beam notch ISO 180/A
-30℃45kJ/m²ISO 180-A
-20℃52kJ/m²ISO 180-A
23℃60kJ/m²ISO 180-A
Notched impact strength of cantilever beam ISO 180
-30℃No Break ISO 180
23℃No Break ISO 180

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed82.0ISO 75-2/A
0.45 MPa, unannealed106ISO 75-2/B
Vicat Softening Temp
B120125ISO 306/B120
Melting temperature223ISO 11357-3
Linear coefficient of thermal expansion
TD:23~55℃9.0E-51/℃ISO 11359-2
MD:23~55℃9.0E-51/℃ISO 11359-2
Thermal conductivity coefficient
23℃0.20W/m/KISO 8302

Electrical performanceNominal valueUnitTest method
Surface resistivity> 1.0E+17ohmsIEC 60093
Volume resistivity
23℃> 1.0E+17ohms·cmIEC 60093
Dielectric strength
23 ℃,1 mm35kV/mmIEC 60243-1
Relative permittivity IEC 60250
23℃,100 Hz3.20 IEC 60250
23℃,1 MHz3.10 IEC 60250
Dissipation factor IEC 60250
23℃,100 Hz1.5E-3 IEC 60250
23℃,1 MHz0.013 IEC 60250
Compared to the leakage tracing index IEC 60112
Solution A500VIEC 60112
Solution B100VIEC 60112

FLAME CHARACTERISTICSNominal valueUnitTest method
1.60 mmHB UL 94
Glowing wire flammability index
2.0 mm700IEC 60695-2-12
Extreme oxygen index21%ISO 4589-2
Burning rate
USFMVSS,> 1.00 mmpassed ISO 3795

Supplementary informationNominal valueUnitTest method
Electrolytic corrosion
23℃A1 IEC 60426
Gottfert Melt Viscosity(260℃)670Pa·sInternal Method
ISO ShortnameISO 7792-1-PBT/PC,MHPR,-020 

MECHANICALNominal valueUnitTest method
Tensile modulus
23℃2150MPaISO 527-1-2
tensile strength
Fracture, 23 ℃45.0MPaISO 527-2/50
Yield, 23 ℃50.0MPaISO 527-2/50
Tensile strain
Yield, 23 ℃4.0%ISO 527-2/50
Nominal tensile fracture strain
23℃> 50%ISO 527-2/50
Bending modulus
23℃2100MPaISO 178
bending strength ISO 178
23℃75.0MPaISO 178
3.50% strain, 23 ℃66.0MPaISO 178
Bending strain5.5%ISO 178
Ball hardness100MPaISO 2039-1

Notes
1. Typical properties: these are not to be construed as specifications.
2. 600 bar
3. 0.079 in/min
4. 2 mm/min
5. 10°C/min
6. Across Flow
7. Procedure A
8. US-FMVSS
9. 165s-1
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