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Master Bond adhesives

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SABIC Valox® 315 PBT  (Unverified Data**)
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT)

Material Notes: Unreinforced, For extrusion/compounding only (not for injection molding). High viscosity. Melt viscosity between 7500 and 9500 poise.

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.31 g/ccASTM D792
Water Absorption 0.080 %
@Time 86400 sec
ASTM D570
Viscosity 700000 cPMelt Viscosity; SABIC Method
Linear Mold Shrinkage, Flow 0.0090 - 0.016 cm/cm
@Thickness 0.750 - 2.30 mm
SABIC Method
 0.015 - 0.023 cm/cm
@Thickness 2.30 - 4.60 mm
SABIC Method
Linear Mold Shrinkage, Transverse 0.010 - 0.017 cm/cm
@Thickness 0.750 - 2.30 mm
SABIC Method
 0.016 - 0.024 cm/cm
@Thickness 2.30 - 4.60 mm
SABIC Method
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell R 117ASTM D785
Tensile Strength, Yield 51.0 MPaType I, 50 mm/min; ASTM D638
Elongation at Break 300 %Type I, 50 mm/min; ASTM D638
Flexural Yield Strength 82.0 MPa1.3 mm/min, 50 mm span; ASTM D790
Flexural Modulus 2340 MPa1.3 mm/min, 50 mm span; ASTM D790
Izod Impact, Notched 53.0 J/mASTM D256
Izod Impact, Unnotched 1602 J/mASTM D4812
Gardner Impact 40.0 JASTM D3029
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 4.00e+16 ohm-cmASTM D257
Dielectric Constant 3.1
@Frequency 1e+6 Hz
ASTM D150
 3.3
@Frequency 100 Hz
ASTM D150
Dielectric Strength 15.7 kV/mm
@Thickness 3.20 mm
in air; ASTM D149
 23.2 kV/mm
@Thickness 1.60 mm
in oil; ASTM D149
Dissipation Factor 0.0020
@Frequency 100 Hz
ASTM D150
 0.020
@Frequency 1e+6 Hz
ASTM D150
 
Thermal PropertiesOriginal ValueComments
CTE, linear, Parallel to Flow 81.0 µm/m-°C
@Temperature -40.0 - 40.0 °C
ASTM E 831
 139 µm/m-°C
@Temperature 60.0 - 138 °C
ASTM E 831
Deflection Temperature at 0.46 MPa (66 psi) 154 °C
@Thickness 6.40 mm
unannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 54.0 °C
@Thickness 6.40 mm
unannealed; ASTM D648
 
Descriptive Properties
Specific Volume0.76cm^3/gASTM D792

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