• March 02. 2023

As we know FKM is fluororubber, also known as Viton. A kind of highly fluorinated polymers that are suitable for continuous use at elevated temperatures. So what FFKM means? Obviously, FKM and FFKM have some relationship, also share many similarities. But What does that extra F mean? JST seals are here to tell you what is FFKM. FFKM, or perfluoroelastomer, It’s a kind of sealing material whatever ...

• March 30. 2023

Perfluoroether rubber (FFKM) is a high-performance sealing material, whose excellent performance has led to its application throughout the entire manufacturing system of semiconductor products. FFKM seal is one of the main consumables required for the production of integrated circuits. Main performance characteristics of FFKM: 1) Physical properties FFKM has a density of 1.9-2.0g/cm ³, Its physica...

• April 19. 2023

Perfluororelastomer FFKM Series is sealing product developed by JST to meet the increasingly demanding sealing needs of equipment manufacturers and users in semiconductor, petrochemical, mechanical seal, instrumentation, energy, biopharmaceutical, food and medical industries. In addition to chemical inertness and thermal stability, FFKM also has the unique elasticity and durable sealing force of s...

• June 29. 2023

The world we know of cannot be achieved without computers - these technologies cannot be achieved without semiconductors. However, as wafers become smaller and smaller, their production also faces unique challenges, with pollution posing greater risks to their integrity and functionality. One factor often overlooked in semiconductor manufacturing is the overall sealing process. Your seal will eith...

• July 28. 2023

Industrial grade FFKM seal FFKM has excellent chemical corrosion resistance and high temperature resistance characteristics, which makes FFKM widely used in various harsh working conditions for chemical applications. Semiconductor grade FFKM seal JST semiconductor-grade FFKM compounds are with high purity (low amount of extractables) and very good oxygen and CF4 plasma resistance, which have the t...

• September 15. 2023

FKM – Fluoroelastomers FKM is a fluorocarbon rubber, commonly referred to as fluorine rubber, VITON and FPM. They provide additional heat and chemical resistance. FFKMs are perfluororelastomer compounds containing an even higher amount of fluorine than FKM fluoroelastomers. They have improved resistance to high temperatures and chemicals and even withstand environments where Oxygen-Plasma are pres...

• July 08. 2024

The composition of FFKM O-ring/seal are typically made from perfluoroelastomer materials, which offer exceptional resistance to a wide range of harsh conditions and chemicals. One of the standout features of FFKM O-ring/seals is their exceptional chemical resistance. They can withstand the corrosive effects of a vast array of chemicals, including strong acids, bases, solvents, and other aggressive...

• July 22. 2024

JST KALFLUO 8520 is a kind of FFKM material which is specially cured for very high performance applications, with high purity, good chemical resistance and heat stability properties. It is mainly used for semiconductor manufacturing applications, which is an ideal sealing material for most dry (plasma etching, PECVD, LPCVD, metal CVD, PVD, ALD, plasma cleans) and wet semiconductor processes (wafer...