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Ensinger PEI

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DuPont Mobility and Materials Delrin® 127UVE BK701 POM  (discontinued **)
Categories: Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM)

Material Notes: UV Stabilized High Viscosity Acetal Homopolymer with Very Low Emissions

Information provided by DuPont.

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Physical PropertiesOriginal ValueComments
Density 1.42 g/ccISO 1183
Linear Mold Shrinkage, Flow 0.021 cm/cmISO 294-4, 2577
Linear Mold Shrinkage, Transverse 0.019 cm/cmISO 294-4, 2577
Melt Flow 2.0 g/10 min
@Load 2.16 kg,
Temperature 190 °C
cm³/10min Volumetric Rate; ISO 1133
 2.4 g/10 min
@Load 2.16 kg,
Temperature 190 °C
ISO 1133
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell M 90ISO 2039-2
Hardness, Rockwell R 120ISO 2039-2
Tensile Strength, Yield 73.0 MPaISO 527-1/-2
Elongation at Break 40 %ISO 527-1/-2
Elongation at Yield 25 %ISO 527-1/-2
Tensile Modulus 2900 MPaISO 527-1/-2
Flexural Yield Strength 82.0 MPa
@Strain 3.5 %
ISO 178
Flexural Modulus 3000 MPaISO 178
Poissons Ratio 0.37ISO 527-1/-2
Charpy Impact Unnotched 365 kJ/m²
@Temperature 23.0 °C
ISO 179/1eU
Charpy Impact, Notched 11.0 kJ/m²
@Temperature 23.0 °C
ISO 179/1eA
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+15 ohm-cmIEC 62631-3-1
Surface Resistance 2.00e+13 ohmIEC 62631-3-2
Dielectric Constant 3.96
@Frequency 100 Hz
IEC 62631-2-1
Dissipation Factor 0.0027
@Frequency 100 Hz
IEC 62631-2-1
Comparative Tracking Index 600 VIEC 60112
 
Thermal PropertiesOriginal ValueComments
Melting Point 178 °C10°C/min; ISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi) 161 °CISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi) 94.0 °CISO 75-1/-2
Flame Spread <= 80.0 mm/min
@Thickness 1.00 mm
ISO 3795 (FMVSS 302)
 
Processing PropertiesOriginal ValueComments
Melt Temperature 195 - 205 °CExtrusion
 200 °CExtrusion Optimum
 205 °CInjection Optimum
 200 - 210 °CInjection
Mold Temperature 80.0 - 100 °CInjection
 90.0 °CInjection Optimum
Drying Temperature 75.0 °CExtrusion
 80.0 °CInjection
 85.0 °CExtrusion
Dry Time 2.00 - 4.00 hourDehumidified Dryer; Extrusion
 2.00 - 4.00 hourDehumidified Dryer; Injection
Moisture Content 0.20 %Extrusion
 0.20 %Injection
Hold Pressure 90.0 - 110 MPaInjection
Annealing Temperature 160 °CInjection
 
Descriptive Properties
AdditivesRelease agent
Annealing time30 min/mmInjection - Optional
Delivery formPellets
Drying RecommendedyesInjection
FMVSS ClassBISO 3795 (FMVSS 302)
Hold pressure time (s/mm)8Injection
Part Marking CodePOMISO 11469
ProcessingInjection Molding
 Other Extrusion
 Profile Extrusion
 Sheet Extrusion
Regional AvailabilityAsia Pacific
 Europe
 Global
 Near East/Africa
 North America
 South and Central America
Resin IdentificationPOMISO 1043
Special characteristicsLight stabilized or stable to light
 U.V. stabilized or stable to weather

**
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