Polytetraflouroethylene (TFE) and Kynar are both in short supply.

PTFE - Polytetrafluoroethylene  product PTFE (TFE) along with PVDF  manufacturing requires a mineral called Fluorspar that is mined in Mongolia and China. The worldwide demand for this mineral has increased significantly, as well as the supply has tightened. PTFE materials have high heat resistance, excellent chemical resistance and really low co-efficient of friction (slick) and is utilized within a great deal of applications from non-stick fry kitchenware to ptfe tape for home use. This mineral is actually a important raw material within the manufacturing of fluoropolymers, fluorolubricants and many refrigerants.This rise in demand mixed with general shortage of raw materials is responsible for a dramatic price increase (almost double throughout the last year), shortages, and we expect both these factors to keep at it in the near future.