DuPont Elastomers VTR 8605/VTR 8600 Blend

Subcategory: Fluoropolymer, TS; Elastomer, TS; Thermoset

Close Analogs: This former DuPont Dow Elastomers product line is now produced by DuPont Performance Elastomers.

Material Notes:

Formulation

VTR 8605	50
VTR 8600	50
Zinc Oxide	3
N990 Carbon Black	30
Diak™ 7 (TAIC)	3
Luperox® 101-XL 45	2

Description: VTR-8605 is a new, 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 revolutionary new 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

VTR-8600 is a new, 70% fluorine peroxide cured polymer similar to Viton® GF but utilizes DuPont Dow's new Advanced Polymer Architecture technology which significantly improves processing and curing characteristics. Advanced Polymer Architecture technology in VTR-8600 upgraded the peroxide cure site along with optimizing the molecular architecture to deliver a polymer which:

• Cures exceptionally fast to a high state of cure
• Shows improved mold release/mold fouling properties compared to Viton® GF
• 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® GF
• Shows excellent compression set resistance with little (2 hr) or no postcure

When mixing VTR-8600 in an internal mixer it is recommended that at least a 70% load factor be used.

Information provided by manufacturer.