TFE sheet products, PTFE (TFE) and PVDF manufacturing requires a mineral called Fluorspar that's mined in Mongolia and China. The worldwide interest in this mineral has risen significantly, and also the supply has tightened. PTFE materials have high heat resistance, excellent chemical resistance and incredibly low co-efficient of friction (slippery) and is used within dozens of purposes from non-stick fry pots and pans to ptfe tape for personal use. This mineral is actually a crucial raw material in the manufacturing of fluoropolymers, fluorolubricants and many refrigerants.This rise in demand joined together with general shortage of raw materials has caused a dramatic price increase (almost double in the last year), shortages, and we expect both these factors to keep at it in the near future.