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Ryton® R-4

Polyphenylene Sulfide

Glass Fiber Reinforcement, 40%

Supplied by Chevron Phillips Chemical Company LLC

The technical datasheet with complete property values for Ryton® R-4 is available to members of the Prospector Plastics Database.
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Product Description
Ryton® R-4 PPS is a 40% fiberglass reinforced polyphenylene sulfide compound that provides outstanding chemical resistance and mechanical properties even at elevated temperatures.
General  
Material Status 
  • Commercial: Active
Availability 
  • Asia Pacific
  • Europe
  • North America
  • South America
  
Filler / Reinforcement 
  • Glass Fiber Reinforcement, 40% Filler by Weight
Features 
  • Good Chemical Resistance
  • High Heat Resistance
  
RoHS Compliance 
Automotive Specifications 
Appearance 
  • Natural Color
Forms 
  • Pellets
Processing Method 
  • Injection Molding
Physical
Nominal Value
Unit
Test Method
Specific Gravity
 
 ASTM D792
Molding Shrinkage      
Flow: 0.125 in
in/in
  
Across Flow: 0.125 in
in/in
  
Water Absorption (73°F, 24 hr)
%
 ASTM D570
Mechanical
Nominal Value
Unit
Test Method
Tensile Stress      
Yield
psi
 ISO 527-2
--
psi
 ASTM D638
Tensile Elongation      
Break
%
 ASTM D638
Break
%
 ISO 527-2
Flexural Modulus      
--
psi
 ASTM D790
--
psi
 ISO 178
Flexural Strength      
--
psi
 ASTM D790
--
psi
 ISO 178
Compressive Strength
psi
 ASTM D695
Impact
Nominal Value
Unit
Test Method
Notched Izod Impact      
0.125 in
ft·lb/in
 ASTM D256
--
ft·lb/in²
 ISO 180/A
Unnotched Izod Impact      
0.125 in
ft·lb/in
 ASTM D256
--
ft·lb/in²
 ISO 180
Thermal
Nominal Value
Unit
Test Method
Deflection Temperature Under Load (264 psi, Annealed)
°F
 ASTM D648
CLTE     ASTM E831
Flow: -58 to 122°F
in/in/°F
  
Flow: 212 to 392°F
in/in/°F
  
Transverse: -58 to 122°F
in/in/°F
  
Transverse: 212 to 392°F
in/in/°F
  
Thermal Conductivity
Btu·in/hr/ft²/°F
  
UL Temperature Rating
°F
 UL 746B
Electrical
Nominal Value
Unit
Test Method
Volume Resistivity
ohm·cm
 ASTM D257
Dielectric Strength
V/mil
 ASTM D149
Dielectric Constant     ASTM D150
78°F, 1 kHz
 
  
78°F, 1 MHz
 
  
Dissipation Factor     ASTM D150
78°F, 1 kHz
 
  
78°F, 1 MHz
 
  
Arc Resistance
sec
 ASTM D495
Insulation Resistance 2 (194°F)
ohms
  
Flammability
Nominal Value
Unit
Test Method
Flame Rating - UL
 
 UL 94
UL
Nominal Value
Unit
Test Method
Comparative Tracking Index (CTI)
V
 UL 746
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Ryton® R-4, Ryton R4, Ryton® , Ryton, RytonR4, R-4, R4, R:4, R/4, R+4, R_4, R 4, Polyphenylene Sulfide, PPS, CP Chem, PolyphenyleneSulfide, 4R
Features
Features may also be described by the following terms: Good Chemical Resistance, Chemical Resistant, High Heat Resistance.
Automotive Specifications
This plastic material has approval for 1 automotive specifications from the following agencies (the number in parentheses shows the number of specifications for that agency): FORD (1).
Injection
Nominal Value
Unit
 
Drying Temperature
°F
  
Drying Time
hr
  
Suggested Max Moisture
%
  
Suggested Shot Size
%
  
Rear Temperature
°F
  
Middle Temperature
°F
  
Front Temperature
°F
  
Nozzle Temperature
°F
  
Processing (Melt) Temp
°F
  
Mold Temperature
°F
  
Injection Rate
 
  
Back Pressure
psi
  
Screw Speed
rpm
  
Clamp Tonnage
tons/in²
  
Cushion
in
  
Screw L/D Ratio
 
  
Screw Compression Ratio
 
  
Injection Notes
Injection Pack/Hold Pressure: Set high enough to achieve maximum cavity pressure in the part. Typically set at 60-75% of peak injection pressure.
Notes
1Typical properties: these are not to be construed as specifications.
295%RH, 48 hr
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.