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Rulon Bearings

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Covestro Makroblend® KU 2-7912 MBS151 Polycarbonate + PBT, Impact Grade  (discontinued **)
Categories: Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate/Polybutylene Terephthalate (PBT) Blend, Unreinforced; Polyester, TP; Polybutylene Terephthalate (PBT)

Material Notes:
  • (PC+PBT)-blends
  • impact modified
  • Injection molding grade
  • medium flow
  • high toughness at low temperatures
  • ideal for painted application
  • unreinforced

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 PropertiesOriginal ValueComments
Density 1.20 g/ccISO 1183
Water Absorption 0.50 %Similar to ISO 62
Moisture Absorption at Equilibrium 0.20 %Similar to ISO 62
Melt Flow 25 g/10 min
@Load 5.00 kg,
Temperature 260 °C
estimated from MVR using room temperature density; ISO 1133
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Yield 50.0 MPaISO 527-1/-2
Elongation at Break >= 50 %Nominal; ISO 527-1/-2
Elongation at Yield 4.0 %ISO 527-1/-2
Tensile Modulus 2100 MPaISO 527-1/-2
Charpy Impact Unnotched NBISO 179/1eU
 NB
@Temperature -30.0 °C
ISO 179/1eU
Charpy Impact, Notched 6.00 J/cm²ISO 179/1eA
 4.50 J/cm²
@Temperature -30.0 °C
ISO 179/1eA
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+13 ohm-cmIEC 60093
Surface Resistance >= 1.00e+15 ohmIEC 60093
Dielectric Constant 3.1
@Frequency 1e+6 Hz
IEC 60250
 3.2
@Frequency 100 Hz
IEC 60250
Dielectric Strength 31.0 kV/mmIEC 60243-1
Dissipation Factor 0.0010
@Frequency 100 Hz
IEC 60250
 0.0125
@Frequency 1e+6 Hz
IEC 60250
Comparative Tracking Index 600 VIEC 60112
 
Thermal PropertiesOriginal ValueComments
CTE, linear, Parallel to Flow 90.0 µm/m-°CISO 11359-1/-2
CTE, linear, Transverse to Flow 90.0 µm/m-°CISO 11359-1/-2
Melting Point 223 °CISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi) 100 °CISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi) 84.0 °CISO 75-1/-2
Flammability, UL94 HB
@Thickness 1.60 mm
IEC 60695-11-10
 HB
@Thickness 0.800 mm
IEC 60695-11-10
Oxygen Index 21 %ISO 4589-1/-2
 
Processing PropertiesOriginal ValueComments
Melt Temperature 250 - 270 °C
 260 °CInjection Molding; ISO 294
Mold Temperature 60.0 - 80.0 °C
 70.0 °CInjection Molding; ISO 10724
Injection Velocity 200 mm/secISO 294
 
Descriptive Properties
AvailabilityAsia Pacific
 Europe
 India
 Near East/Africa
 North America
 South and Central America
FeatureRelease agent
FormPellets
ProcessInjection Molding

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PB09851 / 92691

Aluminum Castings

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