Qnity to Debut New Kalrez® Innovations for Advanced Semiconductor Manufacturing

Introduction

On October 6, 2025, at SEMICON West 2025, Qnity, the Electronics business of DuPont™, officially unveiled three innovative Kalrez® perfluoroelastomer (FFKM) sealing products. These new materials are engineered specifically for advanced semiconductor manufacturing, where the highest standards of purity, precision, and durability are required.

The launch also marks the 50th anniversary of the Kalrez® brand, a global symbol of reliability and innovation in high-performance sealing solutions. With decades of proven success, Kalrez® continues to set the benchmark for sealing performance across demanding industries — from semiconductors and chemical processing to aerospaceapplications.

Kalrez® – The High-Performance Sealing Solution for Semiconductor Processes

In semiconductor fabrication, where plasma, corrosive gases, and extreme temperatures are constant challenges, standard elastomers cannot maintain long-term integrity.

Kalrez®, a premium FFKM material, has become the global standard due to its exceptional properties:

• Outstanding chemical resistance against aggressive etching and cleaning agents

• Excellent thermal stability up to 327°C

• Low particle generation and ultra-clean performance

• Long sealing life in harsh plasma and vacuum environments

These unique characteristics make Kalrez® the material of choice for critical applications such as etching, CVD, PVD, and ALD, where even microscopic contamination can impact wafer yield and product quality.

Three New Kalrez® Grades Launched at SEMICON West 2025

At SEMICON West 2025, Qnity introduced three next-generation Kalrez® products optimized for next-level integrated circuit (IC) manufacturing:

1. Kalrez® 9400 – Designed for Extreme Plasma and High-Temperature Conditions

Kalrez® 9400 was developed for high-density plasma environments containing reactive hydrogen and oxygen species.

Key advantages:

• Low erosion rate, minimizing particle generation during plasma etch

• Superior thermal stability, maintaining sealing integrity at elevated temperatures

• Extended maintenance cycles, improving equipment uptime and productivity

This grade is ideal for dry etch chambers and high-temperature plasma processes, enabling longer operational life and reduced maintenance costs for semiconductor fabs.

2. Kalrez® UPHT – Ultra-Pure, High-Temperature Plasma Grade

Representing a major step forward in sealing technology, Kalrez® UPHT delivers exceptional resistance to free-radical plasma environments at elevated temperatures.

Outstanding properties:

• Minimal particle generation, reducing wafer contamination

• Ultra-low metal and outgassing content, ensuring high process purity

• Enhanced durability, extending seal life in aggressive plasma conditions

With its new polymer formulation, Kalrez® UPHT is perfectly suited for advanced etch and deposition applications, helping to reduce defect rates in next-generation wafer manufacturing.

3. Kalrez® PF3 – Pre-Assembled Custom Flange Fittings

Kalrez® PF3 combines precision-machined metal components with Kalrez® FFKM seals to provide a fully integrated, leak-free sealing solution.

Main benefits:

• Easy installation, eliminating dimensional inconsistencies

• Reliable leak prevention in thermal cycling environments

• Reduced assembly time and minimized installation risk

• Improved performance in vacuum and plasma systems

This innovative flange solution is particularly valuable for vacuum lines, plasma tools, and wafer processing systems, where joint reliability directly impacts system performance.

Qnity Expands Global Manufacturing Capacity

To meet rising global demand, Qnity has increased Kalrez® production capacity by 30% over the past two years.

Through vertically integrated manufacturing — from polymer synthesis to finished part production — Qnity ensures:

• Consistent quality and full traceability

• Secure and reliable global supply

• Custom-engineered sealing solutions for critical applications

According to Brian Ammons, Global Business Director for Kalrez®, DuPont Electronics:

“Kalrez® is more than just a sealing material – it’s a key enabler of performance in the world’s most advanced semiconductor processes. Our investments in capacity expansion and innovation reflect our commitment to helping customers achieve maximum reliability, purity, and process control.”

50 Years of Kalrez® Innovation

The year 2025 marks the 50th anniversary of the Kalrez® brand — a milestone celebrating five decades of technological breakthroughs and trusted partnerships.

Since its introduction in 1975, Kalrez® has driven innovation in:

• Semiconductor manufacturing

• Chemical processing and clean technologies

• Aerospace engineering

• Pharmaceutical and medical device production

At SEMICON West 2025, Qnity will commemorate this legacy with special activities and product showcases at Booth #961, Phoenix Convention Center, Arizona, from October 7–9, 2025.

Filterfine Vietnam – Official Distributor of DuPont™ Kalrez® in Vietnam

In Vietnam, Filterfine Vietnam is the authorized distributor of DuPont™ Kalrez® products, supplying O-rings, seals, gaskets, and custom components for semiconductor, pharmaceutical, chemical, and high-precision industries.

Filterfine Vietnam offers:

• Genuine Kalrez® products imported directly from DuPont™

• Technical consultation to select the right materials for each application

• Comprehensive after-sales support and local stock availability

With over 20 years of experience in filtration and sealing solutions, Filterfine Vietnam proudly partners with leading manufacturers to enhance process reliability, minimize downtime, and ensure contamination-free operations.

Conclusion

The introduction of Kalrez® 9400, Kalrez® UPHT, and Kalrez® PF3 marks a significant advancement in semiconductor sealing technology. These new materials reinforce Qnity’s (DuPont™) position as a global leader in high-performance sealing solutions, enabling the next generation of semiconductor innovation.

Partnering with Filterfine Vietnam, manufacturers can now access genuine Kalrez® materials and world-class sealing expertise — ensuring purity, reliability, and performance in every process.