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TDS - R-4
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Chevron Phillips Chemical Company LP
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Ryton®  R-4
Polyphenylene Sulfide Resins
Ryton® R-4 PPS is a 40% fiberglass reinforced polyphenylene sulfide compound that provides outstanding chemical resistance and mechanical properties even at elevated temperatures.
Nominal Engineering Properties(1) R-4 R-4-02 Test Method
  Tensile Strength, Ksi 24.0 22.0 ASTM D638
  Elongation, % 1.2 1.0 ASTM D638
  Flexural Strength, Ksi 31.0 29.0 ASTM D790
  Flexural Modulus, Msi 2.1 2.1 ASTM D790
  Notched Izod Impact, ft·lb/in, 1/8 in specimen 1.6 1.4 ASTM D256
  Unnotched Izod Impact, ft·lb/in, 1/8 in specimen 7.0 6.5 ASTM D256
  Compressive Strength, Ksi 38.0 38.0 ASTM D695
  Heat Deflection Temperature 264 psi,°F >500 >500 ASTM D648
  UL Temperature Index,°C 200 / 220 200 / 220 UL 746B
  Coefficient of Linear Thermal Exp., X 10-6 in/in/°C     ASTM E831
      Axial Direction, -50°C to 50°C 20 20  
      Axial Direction, 100°C to 200°C 15 15  
      Transverse Direction, -50°C to 50°C 40 40  
      Transverse Direction, 100°C to 200°C 80 80  
  Flammability Rating V-0 / 5VA V-0 / 5VA UL 94
  Thermal Conductivity, BTU·in/hr·ft2·°F 2.2 2.2  
  Dielectric Strength, V/mil 500 500 ASTM D149
  Dielectric Constant, 78° F     ASTM D150
      1kHz 3.8 3.8  
      1MHz 3.8 3.8  
  Dissipation Factor, 78°F       ASTM D150
      1 kHz 0.002 0.002   
      1 MHz 0.002 0.002   
  Volume Resistivity, ohm·cm 1 x 1016 1 x 1016 ASTM D257
  Arc Resistance, sec 125 125 ASTM D495
  Comparative Tracking Index, V 130 130 UL 746A
  Insulation Resistance, ohm (90°C, 95% RH, 48 hr) 1 x 1011 1 x 1011  
  Mold Shrinkage(2) in/in, Flow/Transverse 0.003 / 0.005 0.003 / 0.005  
  Density, g/cc 1.68 1.68 ASTM D792
  Water Absorption, % (23°C, 24 hr) 0.02 0.02 ASTM D570
  Color Natural Black  
(1) Test specimen molding conditions:  Stock Temperature, 600 - 650° F; Mold Temperature, 275° F
(2) Measured on 4 in X 4 in X 1/8 in Plaques, Edge Gated
The nominal properties reported herein are typical of the product but do not reflect normal testing variances and therefore should not be used for specification purposes.
Ryton® R-4
Polyphenylene Sulfide Resins
Ryton® R-4 PPS is a 40% fiberglass reinforced polyphenylene sulfide compound that provides outstanding chemical resistance and mechanical properties even at elevated temperatures.
Nominal Engineering Properties(5) R-4 R-4-02 Method
  Tensile Strength, MPa 150 145 ISO 527
  Elongation, % 1.1 1.0 ISO 527
  Flexural Strength, MPa 210 200 ISO 178
  Flexural Modulus, GPa 14 14 ISO 178
  Notched Izod Impact, kJ/m2 9.0 8.0 ISO 180A
  Unnotched Izod Impact, kJ/m2 25 20 ISO 180U
  Compressive Strength, MPa 265 265 ISO 604
  Heat Deflection Temperature 1.8 MPa,°C >260 >260 ISO 75
  UL Temperature Index,°C 200 / 220 200 / 220 UL 746B
  Coefficient of Linear Thermal Exp., X 10-6 m/m/°C     ISO 11359-2
      Axial Direction, -50°C to 50°C 20 20   
      Axial Direction, 100°C to 200°C 15 15   
      Transverse Direction, -50°C to 50°C 40 40   
      Transverse Direction, 100°C to 200°C 80 80    
  Flammability Rating V-0 / 5VA V-0 / 5VA UL 94
  Thermal Conductivity, W/m·K 0.32 0.32  
  Dielectric Strength, kV/mm 20 20 ASTM D149
  Dielectric Constant, 25°C       ASTM D150
      1kHz 3.8 3.8   
      1MHz 3.8 3.8   
  Dissipation Factor, 25°C       ASTM D150
      1 kHz 0.002 0.002   
      1 MHz 0.002 0.002   
  Volume Resistivity, ohm·cm 1 x 1016 1 x 1016 ASTM D257
  Arc Resistance, sec 125 125 ASTM D495
  Comparative Tracking Index, V 130 130 UL 746A
  Insulation Resistance, ohm (90°C, 95% RH, 48 hr) 1 x 1011 1 x 1011  
  Mold Shrinkage(6) m/m, Flow/Transverse 0.003 / 0.005 0.003 / 0.005  
  Density, g/cc 1.68 1.68 ISO 1183A
  Water Absorption, % 0.02 0.02 ASTM D570
  Color Natural Black  
(5) Test specimen molding conditions:  Stock Temperature, 315 -3450° C; Mold Temperature, 135° F
(6) Measured on 102 mm X 102 mm X 3.2 mm Plaques, Edge Gated
The nominal properties reported herein are typical of the product but do not reflect normal testing variances and therefore should not be used for specification purposes.
MSDS #298380 Revision Date July, 2009
Before using this product, the user is advised and cautioned to make its own determination and assessment of the safety and suitability of the product for the specific use in question and is further advised against relying on the information contained herein as it may relate to any specific use or application. It is the ultimate responsibility of the user to ensure that the product is suited and the information is applicable to the user's  specific application. Chevron Phillips Chemical Company LP does not make, and expressly disclaims, all warranties, including warranties of merchantability or fitness for a particular purpose, regardless of whether oral or written, express or implied, or allegedly arising from any usage of any trade or from any course of dealing in connection with the use of the information contained herein or the product itself. The user expressly assumes all risk and liability, whether based in contract, tort or otherwise, in connection with the use of the information contained herein or the product itself. Further, information contained herein is given without reference to any intellectual property issues, as well as federal, state or local laws which may be encountered in the use thereof. Such questions should be investigated by the user.
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