PBI is an organic high-performance fiber originally developed by Celanese for the NASA Apollo space program because of its inherent flame resistance properties and chemical stability. Photo courtesy of PBI Performance Products
IFJ_032022_performancefibers_FMMG_110407-006
![PBI is an organic high-performance fiber originally developed by Celanese for the NASA Apollo space program because of its inherent flame resistance properties and chemical stability. Photo courtesy of PBI Performance Products](https://www.fiberjournal.com/wp-content/uploads/IFJ_032022_performancefibers_FMMG_110407-006.jpg)