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NORYL™ Resin 731F

SABIC's Specialties Business NORYL™ 731F resin is a non-reinforced blend of polyphenylene ether (PPE) + polystyrene (PS). This NSF/ANSI 61* listed for potable water use, FDA Food Contact compliant, injection moldable grade exhibits good surface appearance, high ductility, and good impact resistance along with low moisture absorption, creep resistance, dimensional stability, and hydrolytic stability. NORYL™ 731F resin is an excellent candidate for a variety of water management applications such as valves, filtration components, and water meter internals. This product does not contain PFAS intentionally added during SHPP’s manufacturing process and are not expected to contain unintentional PFAS impurities. Each user is responsible for evaluating the presence of unintentional PFAS impurities.

Product families

Applications

Building & Construction — Building Materials
  • Pipes & Plumbing
Industrial — Power, Water & Utilities
  • Water Treatment

Product Families

Plastics — Engineering & Specialty Polymers
  • Blends & Alloys

Other characteristics

Brand
NORYL™ Resin
Density
1060.0 - 1060.0 kg/m³
Polymer Name
PPO/PS Alloy
Flexural Modulus
2550.0 - 2550.0 MPa
Processing Methods
Injection Molding
Note

ᵍ Measurements made from Laboratory test Coupon. Actual shrinkage may vary outside of range due to differences in processing conditions, equipment, part geometry and tool design. It is recommended that mold shrinkage studies be performed with surrogate or legacy tooling prior to cutting tools for new molded article.; ᵖ UL ratings shown on the technical datasheet might not cover the full range of thicknesses and colors. For details, please see the UL Yellow Card.; ⁷ Injection Molding parameters are only mentioned as general guidelines. These may not apply or may need adjustment in specific situations such as low shot sizes, large part molding, thin wall molding and gas-assist molding.; ¹¹ The information stated on Technical Datasheets should be used as indicative only for material selection purposes and not be utilized as specification or used for part or tool design.

Markets
  • Building & Construction
  • Industrial
Flame Rating
UL 94 HB
Technology
Plastics
Labeling Claims
  • Food Contact Acceptable
  • No Added PFAS
Additives Included
Mold Release Agent
Material Features
  • Amorphous
  • Dimensional Stability
  • Excellent Stiffness
  • Food Contact Acceptable
  • Good Mold Release
  • Good Stiffness
  • High Hydrolytic Stability
  • High Stiffness
Country Availability
  • Canada
  • China (Mainland)
  • Mexico
  • USA
Certifications and Compliance
  • NSF Standard 61 for Drinking Water
  • UL 94
Plastics and Elastomers End Uses
  • Faucet System Components
  • Filters
  • Fittings
  • Gears
  • Hygiene
  • Potable Water Applications
  • Pump Parts
  • Water Management
Plastics and Elastomers Functions
Resin
Plastics and Elastomers Processing Methods
Injection Molding

Technical data

Table 1 of 7

17 rows
CharacteristicValueUnitMethod
Tensile Stress (Yield, Type I, 50 mm/min) ¹¹58MPaASTM D638
Tensile Stress (Break, Type I, 50 mm/min) ¹¹49MPaASTM D638
Tensile Strain (Yield, Type I, 50 mm/min) ¹¹7.2%ASTM D638
Tensile Strain (Break, Type I, 50 mm/min) ¹¹28.1%ASTM D638
Tensile Modulus (at 50 mm/min) ¹¹2860MPaASTM D638
Flexural Stress (Yield, 1.3 mm/min, 50 mm span) ¹¹90MPaASTM D790
Flexural Stress (Yield, 2.6 mm/min, 100 mm span) ¹¹89MPaASTM D790
Flexural Modulus (at 1.3 mm/min, 50 mm span) ¹¹2640MPaASTM D790
Flexural Modulus (at 2.6 mm/min, 100 mm span) ¹¹2420MPaASTM D790
Hardness (Rockwell R) ¹¹119—ASTM D785
Tensile Stress (Yield, 50 mm/min) ¹¹57MPaISO 527
Tensile Stress (Break, 50 mm/min) ¹¹51MPaISO 527

Table 2 of 7

9 rows
CharacteristicValueUnitMethod
Specific Gravity ¹¹1.06—ASTM D792
Water Absorption (at 23°C, 24hrs) ¹¹0.06%ASTM D570
Mold Shrinkage (flow, 3.2 mm) ᵍ ¹¹0.5 - 0.7%SABIC method
Mold Shrinkage (xflow, 3.2 mm) ᵍ ¹¹0.5 - 0.7%SABIC method
Melt Flow Rate (at 280°C, 5.0 kgf) ¹¹9.2g/10 minASTM D1238
Density ¹¹1.06g/cm³ISO 1183
Water Absorption (at 23°C, saturated) ¹¹0.23%ISO 62-1
Moisture Absorption (at 23°C, 50% RH) ¹¹0.06%ISO 62
Melt Volume Rate (at 280°C, 5.0 kg) ¹¹9cm³/10 minISO 1133

Table 3 of 7

15 rows
CharacteristicValueUnitMethod
Vicat Softening Temperature (Rate B/50) ¹¹140°CISO 306
Vicat Softening Temperature (Rate B/50) ¹¹148°CASTM D1525
Heat Deflection Temperature (at 0.45 MPa, 3.2 mm, Unannealed) ¹¹131°CASTM D648
Heat Deflection Temperature (at 1.82 MPa, 3.2mm, Unannealed) ¹¹117°CASTM D648
Heat Deflection Temperature (at 0.45 MPa, 6.4 mm, Unannealed) ¹¹137°CASTM D648
Heat Deflection Temperature (at 1.82 MPa, 6.4 mm, Unannealed) ¹¹126°CASTM D648
Coefficient of Thermal Expansion (at -40°C to 40°C, flow) ¹¹0.00009181/°CASTM E831
Coefficient of Thermal Expansion (at -40°C to 40°C, flow) ¹¹0.00009181/°CISO 11359-2
Coefficient of Thermal Expansion (at -40°C to 40°C, xflow) ¹¹0.00009541/°CASTM E831
Coefficient of Thermal Expansion (at -40°C to 40°C, xflow) ¹¹0.00009541/°CISO 11359-2
Vicat Softening Temperature (Rate B/120) ¹¹143°CISO 306
Heat Deflection Temperature/Af (at 1.8 Mpa, Flatw 80*10*4, sp=64mm) ¹¹120°CISO 75/Af

Table 4 of 7

15 rows
CharacteristicValueUnitMethod
Dielectric Strength (in oil, at 3.2mm) ¹¹21.6kV/mmASTM D149
Relative Permittivity (50/60 Hz) ¹¹2.65—ASTM D150
Dissipation Factor (at 50/60 Hz) ¹¹0.0004—ASTM D150
High Voltage Arc Track Rate (PLC) ¹¹4PLC CodeUL 746A
Comparative Tracking Index (UL, PLC) ¹¹3PLC CodeUL 746A
Comparative Tracking Index (UL, PLC) ¹¹2PLC CodeUL 746A
High Ampere Arc Ignition (PLC 0) ¹¹min. 1.5mmUL 746A
High Ampere Arc Ignition (PLC 3) ¹¹min. 1.5mmUL 746A
High Ampere Arc Ignition (PLC 4) ¹¹min. 6mmUL 746A
Hot Wire Ignition (PLC 1) ¹¹min. 1.5mmUL 746A
Hot Wire Ignition (PLC 2) ¹¹min. 1.5mmUL 746A
Hot Wire Ignition (PLC 2) ¹¹min. 3mmUL 746A

Table 5 of 7

8 rows
CharacteristicValueUnitMethod
Izod Impact (Notched, at 23°C) ¹¹213J/mASTM D256
Izod Impact (Notched, at -40°C) ¹¹133J/mASTM D256
Color (at -30°C) ¹¹25JASTM D3029
Color (at -40°C) ¹¹5JASTM D3029
Instrumented Dart Impact Total Energy (at 23°C) ¹¹48JASTM D3763
Izod Impact (Notched, 80*10*4, at 23°C) ¹¹17kJ/m²ISO 180/1A
Izod Impact (Notched, 80*10*4, at -30°C) ¹¹5kJ/m²ISO 180/1A
Charpy Impact (at 23°C, V-notch Edgew 80*10*4 sp=62mm) ¹¹17kJ/m²ISO 179/1eA

Table 6 of 7

13 rows
CharacteristicValueUnit
Drying Temperature ⁷105 - 110°C
Drying Time ⁷3 - 4Hrs
Drying Time (Cumulative) ⁷8Hrs
Maximum Moisture Content ⁷0.02%
Melt Temperature ⁷280 - 310°C
Nozzle Temperature ⁷280 - 310°C
Front - Zone 3 Temperature ⁷270 - 310°C
Middle - Zone 2 Temperature ⁷260 - 305°C
Rear - Zone 1 Temperature ⁷250 - 300°C
Mold Temperature ⁷75 - 105°C
Back Pressure ⁷0.3 - 0.7MPa
Screw Speed ⁷20 - 100rpm

Table 7 of 7

2 rows
CharacteristicValueUnitMethod
UL Recognized (94HB Flame Class Rating) ᵖmin. 1.5mmUL 94
Oxygen Index (LOI) ᵖ22%ASTM D2863

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