... % max -free acidity( as HF ): 0.01% Bisphenol AF is used to cure or cross-link fluorocarbon elastomers, often ... compression set, chemical resistance and thermal stability. Bisphenol AF is also useful as a monomer in the synthesis of ... polyesters, polycarbonates, polyurethanes, and other polymers.Polymers containing Bisphenol AF are useful in high-temperature composites, in electronic materials, in ...