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Ensinger PEI
DuPont Mobility and Materials GLT305 Peroxide Cured Fluoroelastomer (FKM) Formulation  (discontinued **)
Categories: Polymer; Thermoset; Fluoropolymer, TS; Thermoset Fluoroelastomer; Rubber or Thermoset Elastomer (TSE)

Material Notes: VTR-8505 is a 64% fluorine, peroxide-cured, low-temperature Viton® fluoroelastomer similar to VTR-8500 but with a significantly lower gum polymer viscosity of ~25 (ML at 121°C). VTR-8505 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:
  • Is ideal for blending with VTR-8500 to reach intermediate viscosity ranges
  • Cures exceptionally fast to a high state of cure
  • Shows improved mold release/mold fouling properties compared to Viton® GLT and GLT-305
  • Shows improved mold flow and less shear sensitivity than 65 Mooney VTR-8500
  • Shows excellent physical properties with high elongation, both original and aged
  • Shows similar heat, fluids, and low temperature resistance compared to Viton® GLT and GLT-305
  • Shows improved water resistance/volume swell in water compared to Viton® GLT and GLT-305
  • Shows excellent compression set resistance with either low or no postcure

Information provided by manufacturer.

Vendors:
Available Properties
  • Mooney Viscosity, ML-10 (gum)-Akron data
  • Hardness, Shore A, Cured 7 min at 177°C and Post Cured 16 hr at 232°C
  • Tensile Strength, Ultimate, Cured 7 min at 177°C and Post Cured 16 hr at 232°C
  • Tensile Strength, Yield, 10% Modulus, Cured 7 min at 177°C and Post Cured 16 hr at 232°C
  • Elongation at Break, Cured 7 min at 177°C and Post Cured 16 hr at 232°C
  • 100% Modulus, Cured 7 min at 177°C and Post Cured 16 hr at 232°C
  • Compression Set, Method B, O-rings 70 hr at 200°C (Post Cured 16 hr at 232°C)
  • Glass Transition Temp, Tg, DSC, modulated
  • Fluorine, F
  
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Manufacturer Notes:
DuPont Performance Polymers (Former DuPont Elastomers)

Category Notes
Plastic

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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