Polytetraflouroethylene (TFE) and Kynar - PVDF both are in short supply.
PTFE - Polytetrafluoroethylene product PTFE (TFE) and Kynar manufacturing requires a mineral called Fluorspar which is mined in Mongolia and China. The worldwide requirement for this mineral has increased significantly, as well as supply has tightened. PTFE materials have high heat resistance, excellent chemical resistance and incredibly low co-efficient of friction (slippery) and is utilised throughout a bunch of purposes from non-stick fry pans to ptfe tape for use at home. This particular mineral is the crucial raw materials inside the manufacturing of fluoropolymers, fluorolubricants and several refrigerants.This escalating demand mixed with shortage of raw materials is mainly responsible for a dramatic price increase (almost double over the past year), shortages, and we expect both these factors to stay in affect in the near future. Foraflon