DuPont Mobility and Materials VTR 8605 (GF-S) Peroxide Cured Fluoroelastomer (FKM) Formulation

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DuPont Mobility and Materials VTR 8605 (GF-S) Peroxide Cured Fluoroelastomer (FKM) Formulation (discontinued **)
Categories:	Polymer; Thermoset; Fluoropolymer, TS; Thermoset Fluoroelastomer; Rubber or Thermoset Elastomer (TSE)
Material Notes:	VTR-8605 is a 70% fluorine, peroxide-cured, Viton® polymer similar to VTR-8600 but with a significantly lower gum polymer viscosity of ~25 (ML at 121°C). VTR-8605 utilizes an 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-8600 to reach intermediate viscosity ranges Cures exceptionally fast to a high state of cure Shows improved mold release/mold fouling properties compared to Viton® GF and GF-300 Shows improved mold flow and less shear sensitivity than 65 Mooney VTR-8600 Shows excellent physical properties with high elongation, both original and aged Shows similar heat, fluids, and low temperature resistance compared to Viton® GF-300 Shows improved water resistance/volume swell in water compared to Viton® GF and GF-300 Shows excellent compression set resistance with either low or no postcure Information provided by manufacturer.
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Mechanical Properties	Original Value	Comments

Hardness, Shore A	76	Cured 7 min at 177°C and Post Cured 2 hr at 232°C
Tensile Strength, Ultimate	18.0 MPa	Cured 7 min at 177°C and Post Cured 2 hr at 232°C
Tensile Strength, Yield	0.00102 GPa	10% Modulus, Cured 7 min at 177°C and Post Cured 2 hr at 232°C
Elongation at Break	246 %	Cured 7 min at 177°C and Post Cured 2 hr at 232°C
100% Modulus	0.00630 GPa @Strain 100 %	Cured 7 min at 177°C and Post Cured 2 hr at 232°C
Compression Set	16 % @Temperature 200 °C	Method B, O-rings 22 hr at 200°C (Post Cured 2 hr at 232°C)

Thermal Properties	Original Value	Comments
Glass Transition Temp, Tg	-5.00 °C	MDSC, postcured

Component Elements Properties	Original Value	Comments
Carbon, C	21.6 %
Fluorine, F	70 %
Oxygen, O	9.4 %

Descriptive Properties
Formulation as Tested	100	VTR 8605
	2	Luperox® 101-XL 45
	3	Zinc Oxide
	3	Diak™ 7 (TAIC)
	30	N990 Carbon Black

**
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