plas

Material Comparison

Product Info
Product Name
Brand Name
Usages
Properties
Certificates
PC/PBT KU2-7912/4 BK COVESTRO GERMANY
Makroblend® 
shoes,film,Stationery
wear resistant,High elasticity,Fast forming cycle
UL
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Plastic Datasheets

hardnessTest ConditionTest MethodCOVESTRO GERMANY/KU2-7912/4 BK
Ball Pressure TestISO 2039-1100 Mpa
Supplementary InformationTest ConditionTest MethodCOVESTRO GERMANY/KU2-7912/4 BK
Electrolytic corrosion23°CIEC 60426A1
GottfertMeltViscosity260°CInternal Method670 Pa·s
thermal performanceTest ConditionTest MethodCOVESTRO GERMANY/KU2-7912/4 BK
Hot deformation temperature0.45MPa,UnannealedISO 75-2/B106 °C
1.8MPa,UnannealedISO 75-2/A82.0 °C
Linear coefficient of thermal expansionMD:23to55°CISO 11359-29E-05 cm/cm/°C
TD:23to55°CISO 11359-29E-05 cm/cm/°C
Melting temperatureISO 11357-3223 °C
thermal conductivity23°CISO 83020.20 W/m/K
Vicat softening temperatureISO 306/B120125 °C
mechanical propertiesTest ConditionTest MethodCOVESTRO GERMANY/KU2-7912/4 BK
Bending modulus23°CISO 1782100 Mpa
Bending strain23°CISO 1785.5 %
bending strength23°CISO 17875.0 Mpa
3.5%Strain,23°CISO 17866.0 Mpa
Nominal tensile fracture strain23°CISO 527-2/50>50 %
Tensile modulus23°CISO 527-2/12150 Mpa
Tensile strainYield,23°CISO 527-2/504.0 %
tensile strengthBreak,23°CISO 527-2/5045.0 Mpa
Yield,23°CISO 527-2/5050.0 Mpa
Electrical performanceTest ConditionTest MethodCOVESTRO GERMANY/KU2-7912/4 BK
Compared to the anti leakage trace indexSolutionBIEC 60112PLC 4
SolutionAIEC 60112PLC 1
Dielectric strength23°C,1.00mmIEC 60243-135 KV/mm
Dissipation factor23°C,100HzIEC 602501.5E-03
23°C,1MHzIEC 602500.013
Relative permittivity23°C,1MHzIEC 602503.10
23°C,100HzIEC 602503.20
Surface resistivityIEC 60093>1.0E+17 ohms
Volume resistivity23°CIEC 60093>1.0E+17 ohms·cm
Physical propertiesTest ConditionTest MethodCOVESTRO GERMANY/KU2-7912/4 BK
Apparent densityISO 600.70 g/cm³
density23°CISO 11831.20 g/cm³
Melt Volume Flow Rate (MVR)260°C/5.0kgISO 113316.0 cm3/10min
Water absorption rateEquilibrium,23°C,50%RHISO 620.20 %
Saturation,23°CISO 620.50 %
impact performanceTest ConditionTest MethodCOVESTRO GERMANY/KU2-7912/4 BK
Charpy Notched Impact Strength23°CISO 179/1eA60 kJ/m²
-30°CISO 179/1eA45 kJ/m²
Impact strength of cantilever beam gap-30°CISO 180/A45 kJ/m²
-20°CISO 180/A52 kJ/m²
23°CISO 180/A60 kJ/m²
Impact strength of simply supported beam without notch-30°CISO 179/1eUNoBreak
23°CISO 179/1eUNoBreak
Suspended wall beam without notch impact strength-30°CISO 180NoBreak
23°CISO 180NoBreak
flammabilityTest ConditionTest MethodCOVESTRO GERMANY/KU2-7912/4 BK
Burning rate - US-FMVSS>1.00mmISO 3795passed
Burning wire flammability index2.0mmIEC 60695-2-12700 °C
Extreme Oxygen IndexISO 4589-221 %
UL flame retardant rating1.6mmUL 94HB