MatWeb - Material Property Data Advertise with MatWeb!     Register Now
Data sheets for over 165,000 metals, plastics, ceramics, and composites.
MatWeb - Material Property Data HOME  •   SEARCH  •   TOOLS  •   SUPPLIERS  •   FOLDERS  •   ABOUT US  •   FAQ  •   LOG IN    
Recently Viewed Materials (most recent at top)  

Login to see your most recently viewed materials here.

Or if you don't have an account with us yet, then click here to register.

  Searches:   Advanced  | Category  | Property  | Metals  | Trade Name  | Manufacturer  | Recently Viewed Materials
Ensinger PEI
Americas Styrenics Styron® 685P Polystyrene
Categories: Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Heat Resistant Grade

Material Notes: STYRON® 685P general purpose polystyrene resin is a high heat resin with good strength, moldability/processability, and excellent clarity. This resin is typically used in consumer electronic applications. When used unmodified for the manufacture of food contact articles STYRON 685P complies with the US Food, Drug and Cosmetic Act and Food Additive Regulations 21 CFR 177.1640. The regulations should be consulted for complete details.

Data provided by Dow Chemical.

Americas Styrenics was formed in 2008 as a joint venture between Dow Chemical and Chevron Phillips Chemical Company. Styron was a Dow trade name before the JV formation.

Available Properties
  • Density, ASTM Data
  • Linear Mold Shrinkage
  • Melt Flow, ASTM Data
  • Tensile Strength, Ultimate, ASTM Data
  • Tensile Strength, Yield, ASTM Data
  • Elongation at Break, ASTM Data
  • Elongation at Yield, ISO Data
  • Tensile Modulus, ASTM Data
  • Charpy Impact Unnotched, ISO Data
  • Charpy Impact Unnotched, ISO Data, Low Temp
  • Charpy Impact, Notched, ISO Data, Low Temp
  • Charpy Impact, Notched, ISO Data
  • CTE, linear, Parallel to Flow, ASTM data
  • Deflection Temperature at 0.46 MPa (66 psi), Unannealed; ASTM Data
  • Deflection Temperature at 1.8 MPa (264 psi), Unannealed; ASTM Data
  • Vicat Softening Point
  • Flammability, UL94
  • Haze
  • Transmission, Visible
  • FDA, See notes for details.
Property Data

This page displays only the text
of a material data sheet.

To see MatWeb's complete data
sheet for this material (including
material property data, metal
compositions, material suppliers,
), please click the button below.

Manufacturer Notes:
Americas Styrenics LLC

Category Notes

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.


Specialty Compounds RTP Company
Please read our License Agreement regarding materials data and our Privacy Policy. Questions or comments about MatWeb? Please contact us at We appreciate your input.

The contents of this web site, the MatWeb logo, and "MatWeb" are Copyright 1996-2023 by MatWeb, LLC. MatWeb is intended for personal, non-commercial use. The contents, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from MatWeb, LLC.