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Chemours Viton™ FWRD APA Fluoroelastomers: Performance without Compromise

SpecialChem – Apr 18, 2024

TAGS:  Automotive     Sustainability and Bioplastics    

Chemours Fluoroelastomers This is a sponsored article by Chemours.

The Chemours Viton™ range is the top choice when consumers are looking for fluoroelastomers. Products made with Viton™ retain several properties in the most extreme environments, including:

  • flexibility,
  • strength,
  • shape,
  • chemical resistance, and
  • sealing properties

Chemours is ushering in a transformative era for fluoropolymers. The company is set to introduce a new manufacturing process for its Advanced Polymer Architecture (APA) grades. This eliminates the use of fluorinated surfactants. Viton™ FWRD APA fluoroelastomers help stay ahead of evolving industry regulations without compromising performance.

Learn how new Viton™ FWRD APA grades ensure uninterrupted supply and environmental commitments. You will also see how the new grades show comparable performance to the existing ones across various parameters.


Chemours Viton™: Transforming Chemistry with a Unique Approach


Viton™ fluoroelastomer was introduced in 1957 to meet the aerospace industry's needs for a high-performance sealing elastomer. Viton™ is widely used in the automotive industry and has been known for its outstanding heat and chemical resistance for over 65 years. It is a leader in the emerging markets in advanced electronics, electric vehicles, and semiconductors.

EV Semiconductor
Chemours Viton™ in Emerging Market Applications


Environmental leadership commitments

  • Climate:
    • Reduction of greenhouse gas emissions from operations by 60% by 2030
    • Journey to net-zero operations by 2050
  • Water:
    • Reduce air and water process emissions of fluorinated organic chemicals by 99% or greater by 2030
  • Waste:
    • Reduce landfill volume intensity by 70% by 2030


Viton™ APA (Advanced Polymer Architecture)  Fluoroelastomers


Chemours Advanced Performance Materials is dedicated to delivering products that not only excel in meeting specific requirements but also ensure a consistent supply amidst a continually changing regulatory environment.

To address the present industry demands, Chemours has revolutionized its manufacturing process for advanced polymer architecture fluoroelastomers, creating Viton™ FWRD APA fluoroelastomers. Whilst eliminating the use of a fluorinated surfactant, these do not compromise performance. This groundbreaking process innovation further enhances their established tradition of product excellence and leadership within the industry.

Viton without Sacrificing Performance

Chemours Viton™ FWRD APA Grades

Viton™ FWRD APA fluoroelastomers find indispensable use in seals, gaskets, o-rings, hoses, and tubes, particularly in the following critical sectors:

  • Automotive
  • Semiconductors
  • Industrial manufacturing
  • Oil and gas
  • Aerospace

Customer evaluations and internal assessments have verified that Viton™ FWRD APA fluoroelastomers produced at a commercial-scale facility exhibit performance levels on par with the existing grades.

The full-scale commercial launch and the start of the new process transition are planned for the fourth quarter of 2024.


Chemours: Leader in innovation in fluoroelastomers


Chemours ensures uninterrupted customer supply in an evolving regulatory environment while maintaining optimal performance.

Timeline Edited 1 Chemours

Chemours Leading Innovation in APA Grades


Marketing information milestones


Marketing Years Viton

Marketing Information Milestones

These year-wise milestones represent that the new Viton™ FWRD APA grades are progressing through customer evaluation and qualification towards commercialization. The new grades will maintain the well-known nomenclature by adding the letter 'A' after the name during the transition phase, e.g., GF-200S A.

Customer testing has confirmed that these new grades, manufactured with a new process at a commercial scale, have comparable performance to the existing grades.


Technical Data Overview of Viton™ Fluoroelastomers


New Viton™ FWRD APA fluoroelastomers demonstrated comparable typical uncured and cured properties. Below are data representing select grades across the Viton™ APA portfolio.


Viton™ GBL-S grades: Comparing properties of current vs. new process


Viton™ GBL-S -Tech Details

Property Comparison of Viton™ GBL-200S and Viton™ GBL-600S — Current vs. New Process


Viton™ GLT-S grades: Comparing properties of current vs. new process


Viton™ GLT-S – Technical Details

Property Comparison of Viton™ GLT-200S and Viton™ GLT-600S — Current vs. New Process


Viton™ ETP-600S grades: Comparing properties of current vs. new process


Viton™ ETP-600S – Technical Details

Property Comparison of Viton™ Extreme™ ETP-600S Grades — Current vs. New Process


Compression set relaxation in air @ 200°C (392°F)


Compression set relaxation refers to the gradual recovery or reduction in deformation that occurs in a material after it has been subjected to compression (with pressure) and then the compressive force is removed.

Study on Relaxation in Air

New Viton™ FWRD APA Fluoroelastomers Demonstrated Sealing Properties Equivalent to those of the Existing Grades


Automotive fluid aging test


The automotive fluid aging test is a procedure designed to assess how well fluids used in vehicles, such as engine oils, transmission fluids, and coolants, perform over time under specific conditions. These tests are crucial for evaluating automotive fluids' longevity, stability, and overall effectiveness in maintaining their intended properties.

The aging test typically involves subjecting the fluid to accelerated conditions that simulate the stress and environmental factors the fluid might experience during everyday use. This accelerated testing helps predict how the fluid will perform over an extended period.

Viton - Fluid Aging Test

New Viton™ FWRD APA Fluoroelastomers Demonstrated Equivalent Resistance to Common Automotive Fluids


Advanced rheology data


Advanced rheology data refers to detailed and sophisticated information obtained through the study of rheology — the science that deals with the flow and deformation of materials. Rheological properties are crucial in understanding how materials respond to applied forces and how they deform or flow under different conditions.


Rubber process analyzer (RPA)


Rubber process analyzer for polymer and compound

New Viton™ FWRD APA Fluoroelastomers Show Comparable Results on Both Polymer and Compound


Capillary rheometer studies


Data on Capillary Studies

New Viton™ FWRD APA Fluoroelastomers Show Comparable Rheology Behavior in the Whole Range of Shear Rate


Injection Molding Testing Process


Injection molding testing was done in three ways:

  1. Each compound was injected 25 times into the 4-cavity O-ring mold at constant injection pressure. Injection time was recorded, and the processing was rated (mold filling and mold release).
  2. The weight of the injected O-rings after short shots of 1, 2, and 3 seconds into the mold was measured.
  3. A cord was ejected into the air, and the diameter was measured to compare the die swell.


Using Viton™ GBL-200S results to represent portfolio


Injection time


The graph below shows that the injection time, mold filling, and demolding results of GBL-200S are comparable with the new process GBL-200S A.

Injection Time GBL-200S Compounds 1

Comparing Current Injection Molding Results with New Process


Injected O-ring weight


The weight of injected O-rings is comparable.

Weight of Injected o-rings - VitonTM GBL-200S 1

Injected O-ring Weight Results of GBL-200S are Comparable with the New Process GBL-200S A


Cord diameter


The cord diameter for the current versus the new processes is only slightly different.

Cord Diameter Results GBL-200S Grades 1

Small Difference in Cord Diameter of the Current vs. the New Process


Shrinkage


O-rings produced with the polymer made with the new process show comparable shrinkage.

Shrinkage of injection molded o rings GBL200S Grades 1

O-rings Produced with the Polymer Made with the New Process Show Comparable Shrinkage


Conclusion


Chemours innovation for the Viton™ APA manufacturing process uses a new proprietary technology to produce Viton™ FWRD APA fluoroelastomers with comparable performance in terms of physical, and mechanical, sealing, and processing characteristics.

Assurance of continuous supply: Viton™ FWRD APA fluoroelastomers will ensure a continuous supply amidst an evolving regulatory environment while maintaining optimal performance. The commercial launch and start of the transition to this new process are planned for the fourth quarter of 2024.

Feel free to contact the Chemours team to discuss more about Viton™ FWRD APA grade fluoroelastomers.


Viton™ Range by Chemours





Fluoroelastomer Docs



DISCLAIMER: All images, tables, and graphs used in this article are copyright of Chemours.



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