Ultradur® B 4300 GM42

About
Injection molding grade, containing a glass fiber and mineral reinforcement, for parts with good surface finish and stiffness, as well as low warpage tendency (eg housings, PCBs).&&

Product Description
SupplierBASF
Genericpolybutylene terephthalate
Material StatusCommercial: Active
FeaturesGood Rigidity,Low warping,Good surface appearance,HB
AvailabilitysAsia Pacific,Europe
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.55g/cm³ISO 1183
Apparent density0.70 to 0.80g/cm³
Melt Volume Rate
250℃,2.16 kg17.0cm³/10minISO 1133
Water absorption rate ISO 62
Saturation, 23 ℃0.40%ISO 62
Equilibrium, 23 ℃, 50% RH0.20%ISO 62
Viscosity number101cm³/gISO 307
Shrinkage rate 
MD: Free0.50%
TD: Free1.3%

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength
23℃4.5kJ/m²ISO 179/1eA
Charpy Unnotch Impact strength ISO 179/1eU
-30℃43kJ/m²ISO 179/1eU
23℃45kJ/m²ISO 179/1eU

THERMALNominal valueUnitTest method
Hot deformation temperature 
0.45 MPa, unannealed220ISO 75-2/B
1.8 MPa, unannealed210ISO 75-2/A
Melting temperature223ISO 11357-3
Linear coefficient of thermal expansion
MD:23~80℃4.0E-51/℃ISO 11359-2
specific heat1000J/kg/℃
Temperature index – at 50% tensile strength loss IEC 60216
120IEC 60216
130IEC 60216
Maximum operating temperature
short cycle operation200

Electrical performanceNominal valueUnitTest method
Surface resistivity1.0E+13ohmsIEC 60093
Volume resistivity1.0E+16ohms·cmIEC 60093
Relative permittivity IEC 60250
100 Hz3.80 IEC 60250
1 MHz3.80 IEC 60250
Dissipation factor IEC 60250
100 Hz1.2E-3 IEC 60250
1 MHz0.015 IEC 60250
Compared to the leakage tracing index IEC 60112
Solution A300VIEC 60112
Solution B125VIEC 60112

FLAME CHARACTERISTICSNominal valueUnitTest method

MECHANICALNominal valueUnitTest method
Ball hardness
H358/30195MPaISO 2039-1
Tensile modulus7900MPaISO 527-2
tensile strength
fracture105MPaISO 527-2
Tensile strain
fracture2.7%ISO 527-2
Tensile creep modulus
1000 hr4500MPaISO 899-1

Process Conditions
injectionNominal valueUnitTest method
Drying temperature80 to 120°C
Drying time4.0hr
Recommended maximum moisture content0.040%
Hopper temperature80°C
Barrel rear temperature240°C
Barrel middle temperature245°C
Barrel front temperature250°C
Nozzle temperature250°C
Processing (melt) temperature250 to 275°C
Mold temperature60 to 90°C
Screw Speed< 250mm/sec

Notes
1. Typical properties: these are not to be construed as specifications.
2. solution 0,005 g/ml Phenole/1,2 Dichlorbenzol 1:1
3. plate with film gate 150*150*3 mm³
4. strain <= 0,5%, 23°C
5. 20000 h
6. 5000 h
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