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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
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

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