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Master Bond adhesives
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

**
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