MatWeb - Material Property Data Advertise with MatWeb!     Register Now
Data sheets for over 160,000 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
Visit Zeus Inc. for Fluoropolymer Tubing
DuPont Mobility and Materials VTR 8650 (GBL-S) Peroxide Cured Fluoroelastomer (FKM) Formulation
Categories: Polymer; Thermoset; Fluoropolymer, TS; Thermoset Fluoroelastomer; Rubber or Thermoset Elastomer (TSE)

Material Notes: VTR-8650 is a 68% fluorine peroxide cured polymer similar to Viton® GBL-900 but with significantly improved processing and curing characteristics. VTR-8650 utilizes Advanced Polymer Architecture technology which includes a new peroxide cure site along with an optimized molecular weight distribution designed to deliver a polymer which:
  • Cures exceptionally fast to a high state of cure
  • Shows improved mold release/mold fouling properties compared to Viton® GBL-900 and 200
  • Shows improved mold flow, less shear sensitivity, and lower extruder die swell for a ~65 Mooney FKM
  • Shows excellent physical properties with high elongation, both original and aged
  • Shows similar heat, fluids, and low temperature resistance compared to Viton® GBL-900 and 200
  • Shows improved water resistance/volume swell in water compared to Viton® GBL-900 and 200
  • Shows excellent compression set resistance with either low or no postcure

It is recommended if mixing in an internal mixer to use at least a 70% load factor. The recommended process aid for VTR-8650 is 0.5 phr of Armeen® 18D.

Information provided by manufacturer.

DuPont and Dow have completed their merger but further transactions/spinoffs are planned.

Available Properties
  • Mooney Viscosity, ML-10 (gum)
  • Hardness, Shore A, Cured 7 min at 177°C and Post Cured 2 hr at 232°C
  • Tensile Strength, Ultimate, Cured 7 min at 177°C and Post Cured 2 hr at 232°C
  • Tensile Strength, Yield, 10% Modulus, Cured 7 min at 177°C and Post Cured 2 hr at 232°C
  • Elongation at Break, Cured 7 min at 177°C and Post Cured 2 hr at 232°C
  • 100% Modulus, Cured 7 min at 177°C and Post Cured 2 hr at 232°C
  • Compression Set, Method B, O-rings 22 hr at 200°C (Post Cured 2 hr at 232°C)
  • Glass Transition Temp, Tg, DSC, modulated, midpoint
  • Fluorine, F
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:
DuPont Performance Polymers (Former DuPont Elastomers)

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.


Visit Zeus Inc. for Fluoropolymer Tubing
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 1996-2022 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.