VALOX™ 855 resin

About

Product Description
SupplierSABIC
Genericpolybutylene terephthalate
Material StatusCommercial: Active
FeaturesRenewable resources,V-0,Resistance to detergents,Heat Stabilized
AvailabilitysAsia Pacific,Europe,Africa & Middle East
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.54g/cm³ASTM D792
Specific volume0.650cm³/gASTM D792
Melt Flow Rate
266℃,5.0kg81g/10minASTM D1238
Shrinkage rateInternal Method
MD0.60 to 0.90%
MD0.40 to 0.60%
TD0.50 to 0.80%
TD0.80 to 1.1%
Water absorption rate
24hr0.060%ASTM D570

IMPACTNominal valueUnitTest method
Impact strength of cantilever beam notch
23℃53J/mASTM D256
Notched impact strength of cantilever beam
23℃320J/mASTM D4812

THERMALNominal valueUnitTest method
Hot deformation temperatureASTM D648
0.45 MPa, unannealed, 6.4 mm204
1.8 MPa, unannealed, 6.4 mm188
Linear coefficient of thermal expansion
MDASTM E831
-40 to 40 ℃4.5E-5cm/cm/℃
60 to 138 ℃6.1E-5cm/cm/℃
Relative temperature index125UL 746
Electrical performance125UL 746
Impact mechanical performance110UL 746

Electrical performanceNominal valueUnitTest method
Volume resistivity4.5E+16ohms·cmASTM D257
Dielectric strengthASTM D149
1.6 mm in oil22kV/mm
3.2 mm in air20kV/mm
Dielectric constantASTM D150
100 Hz3.50
1 MHz3.40
Dissipation factorASTM D150
100 Hz1.0E-3
1 MHz0.010
Arc resistancePLC 6ASTM D495
Compared to the leakage tracing indexPLC 3UL 746
High Arc Burning Index (HAI)PLC 4UL 746
High voltage arc marking rate
HVTRPLC 4UL 746
Hot wire ignition
HWIPLC 0UL 746

FLAME CHARACTERISTICSNominal valueUnitTest method
1.47 mmV-0UL 94

MECHANICALNominal valueUnitTest method
Rockwell hardness
R-level119ASTM D785
tensile strength
fracture89.6MPaASTM D638
Bending modulus
50 mm span4830MPaASTM D790
bending strength
Fracture, 50 mm span138MPaASTM D790

Process Conditions
InjectionNominal valueUnitTest method
drying temperature121°C
Drying time3.0 to 4.0hr
Drying time, maximum12hr
Recommended maximum moisture content0.020%
Suggested injection volume40 to 80%
Temperature at the rear of the barrel238 to 254°C
Temperature in the middle of the barrel243 to 260°C
Front temperature of material barrel249 to 266°C
Nozzle temperature243 to 260°C
Processing (melt) temperature249 to 266°C
Mold temperature65.6 to 87.8°C
Back pressure0.345 to 0.689MPa
Screw speed50 to 80rpm
Exhaust hole depth0.025 to 0.038mm

Notes
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