Kalrez vs. FFKM: Are They the Same?
Kalrez®, developed by DuPont, is the best-known FFKM brand, but it's not the only option. As highlighted in a LinkedIn article on semiconductor-grade FFKM applications, several manufacturers—including FLS—now offer comparable solutions with custom formulations, faster lead times, and cost-effective pricing, without compromising on quality.
The article notes:
“Newer suppliers are providing equivalent or better plasma resistance, high-purity formulations, and broad chemical compatibility.”
(Source: LinkedIn: Semiconductor-Grade FFKM O-Rings Market Opportunities)
At fluorosealing, our FFKM O-rings are formulated using raw materials from DuPont, 3M, Daikin, and Solvay, with proven field performance that matches Kalrez in semiconductor plasma etching, wafer processing, and dry pump systems.