I do not believe that there is a good understanding of the impact of far-uvc on plastic embrittlement.
Two studies that I'm aware of, but yeah, data is thin on the ground:
https://www.mdpi.com/2076-3417/13/7/4141 https://www.boeing.cn/cti/downloads/Boeing-Compatibility-of-...
Summarized here, along with other materials considerations: https://blueprintbiosecurity.org/u/2025/06/Blueprint-for-Far...
Delightful, an experiment to be run!