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Master Bond adhesives

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SK Chemicals SKYPEL P128DF Thermoplastic Polyester Elastomer
Categories: Polymer; Thermoplastic; Elastomer, TPE; Polyester TPE

Material Notes: SKYPEL P128DF is a thermoplastic polyester elastomer resin superior heat resistance. SKYPEL P128DF with a medium 28D hardness based on shore D scale is widely used for injection molding and extrusion applications. And SKYPEL P128DF is also available to over mold TPU, PC, ABS, PC/ABS alloys.

Properties: Excellent mechanical properties such as high tensile strength and strain at break. High resistance to creep, impact, and flex-fatigue. Excellent flexibility at low temperature. Fast crystallization to reduce the cycle time of injection process. Processing: SKYPEL P128DF should be sufficiently dried prior to processing. For effective drying using dehumidifying dryer, it should be held for 2 to 3 hours at 100 ? or overnight at least 70 ?. Pre-dried SKYPEL P128DF in aluminum bag is also available.

Tensile property tests on ASTM Type IV dumbbells diecut from injection molded slab 2mm thick. Crosshead speed 50 mm/min.

Information provided by SK Chemicals

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.14 g/ccASTM D792
Water Absorption 1.8 %
@Time 86400 sec
ASTM D570
Linear Mold Shrinkage 0.013 cm/cmASTM D955
Melt Flow 33 g/10 min
@Load 2.16 kg,
Temperature 230 °C
ASTM D1238
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 28ASTM D2240
Tensile Strength at Break 13.7 MPaASTM D638
Tensile Stress at Strain 8.00 kg(f)/cm²
@Strain 5.0 %
ASTM D638
 22.0 kg(f)/cm²
@Strain 10 %
ASTM D638
Elongation at Break 370 %ASTM D638
Flexural Modulus 29.4 MPaCrosshead speed 1.3mm/min.; ASTM D790
Resilience 55Vertical rebound.; ASTM D2632
Izod Impact, Notched (ISO) NBASTM D256
Tear Strength 70.0 kN/m
@Thickness 2.00 mm
Crosshead speed 51mm/min.; ASTM D1004
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 6.00e+14 ohm-cmASTM D257
Surface Resistance 8.00e+13 ohmASTM D257
Dissipation Factor 0.028
@Frequency 1e+7 Hz
ASTM D150
 
Thermal PropertiesOriginal ValueComments
Melting Point 196 °CDSC Peak; 10°C/min.; ASTM D3418
Deflection Temperature at 0.46 MPa (66 psi) 45.0 °CASTM D648
 
Processing PropertiesOriginal ValueComments
Rear Barrel Temperature 190 °CInjection
 195 °CExtrusion
Middle Barrel Temperature 200 °CInjection
 210 °CExtrusion
Front Barrel Temperature 200 °CInjection
 210 °CExtrusion
Nozzle Temperature 205 °CInjection
Die Temperature 210 °CExtrusion
Melt Temperature 215 °CExtrusion
Mold Temperature 30.0 °CInjection

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PSK9922 / 291438

Rulon Bearings

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