Crastin® SK602 BK851

About
15% Glass Reinforced Polybutylene Terephthalate&&

Product Description
SupplierDuPont
Genericpolybutylene terephthalate
Material StatusCommercial: Active
FeaturesHB
AvailabilitysAfrica & Middle East ,North America,Latin America,Asia Pacific,Europe
Process MethodsInjection Molding

Technical Data
MECHANICALNominal valueUnitTest method
Tensile modulus5800MPaISO 527-2
tensile strength
fracture109MPaISO 527-2
Tensile strain
fracture3.5%ISO 527-2

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength
23℃7.0kJ/m²ISO 179/1eA
Charpy Unnotch Impact strength
23℃40kJ/m²ISO 179/1eU
Impact strength of cantilever beam notch
23℃5.0kJ/m²ISO 180-1A

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed200ISO 75-2/A
Melting temperature225ISO 11357-3

Electrical performanceNominal valueUnitTest method
Surface resistivity1.0E+14ohmsIEC 60093
Volume resistivity> 1.0E+15ohms·cmIEC 60093
Dielectric strength35kV/mmIEC 60243-1
Relative permittivity IEC 60250
100 Hz3.70 IEC 60250
1 MHz3.60 IEC 60250
Dissipation factor IEC 60250
100 Hz7.0E-4 IEC 60250
1 MHz0.017 IEC 60250
Compared to the leakage tracing index225VIEC 60112

FLAME CHARACTERISTICSNominal valueUnitTest method
Burning rate
1 mm30mm/minISO 3795
Flame retardant level UL 94
1.50 mmHB UL 94
3.00 mmHB UL 94
Flammability level IEC 60695-11-10, -20
1.5 mmHB IEC 60695-11-10, -20
3.0 mmHB IEC 60695-11-10, -20
FMVSS flame retardant ratingB FMVSS 302
Fogging(Gvalue,condensate)1.0E-4gISO 6452

Supplementary informationNominal valueUnitTest method
Emissions of organic compounds140µgC/gVDA 277
Odor3.00 VDA 270

PHYSICALNominal valueUnitTest method
Density1.41g/cm³ISO 1183
Shrinkage rate ISO 294-4
TD1.1%ISO 294-4
MD0.40%ISO 294-4
Flow Length(2.00 mm)360mm
Ejection temperature170

Process Conditions
injectionNominal valueUnitTest method
Drying temperature120°C
Drying time – hot air dryer2.0 to 4.0hr
Recommended maximum moisture content0.040%
Processing (melt) temperature240 to 260°C
Melt Temperature, Optimum250°C
Mold temperature30 to 130°C
Mold Temperature, Optimum80°C
Hold pressure60.0MPa
Back pressureAs low as possible 
Drying Recommendedyes 
Hold Pressure Time3.00s/mm

Notes
1. Typical properties: these are not to be construed as specifications.
2. 80 MPa
3. 10°C/min
4. FMVSS 302
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