Crastin® LW9320 BK851

About
20% Glass Reinforced Polybutylene Terephthalate Blend with Low Warpage Characteristics&&

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

Technical Data
MECHANICALNominal valueUnitTest method
Tensile modulus7500MPaISO 527-2
tensile strength
fracture120MPaISO 527-2
Tensile strain
fracture2.3%ISO 527-2
Bending modulus7000MPaISO 178

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength
23℃7.0kJ/m²ISO 179/1eA
Charpy Unnotch Impact strength ISO 179/1eU
-30℃40kJ/m²ISO 179/1eU
23℃45kJ/m²ISO 179/1eU
Impact strength of cantilever beam notch
23℃6.5kJ/m²ISO 180-1A

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed165ISO 75-2/A
Melting temperature220ISO 11357-3

FLAME CHARACTERISTICSNominal valueUnitTest method
Burning rate
1 mm32mm/minISO 3795
Flame retardant level UL 94
0.75 mmHB UL 94
1.50 mmHB UL 94
Flammability level IEC 60695-11-10, -20
0.75 mmHB IEC 60695-11-10, -20
1.5 mmHB IEC 60695-11-10, -20
FMVSS flame retardant ratingB FMVSS 302

Supplementary informationNominal valueUnitTest method
Emissions of organic compounds130µgC/gVDA 277
Odor3.50 VDA 270

PHYSICALNominal valueUnitTest method
Density1.34g/cm³ISO 1183
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. 10°C/min
3. FMVSS 302
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