PTFE (TFE) and PVDF both are on allocation.

PTFE - Polytetrafluoroethylene  product PTFE (TFE) and also Kynar-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 temperature resistance, excellent chemical resistance and really low co-efficient of friction (slick) and is used throughout tons of applications from non-stick fry pots and pans to ptfe tape for home use. This particular mineral is a key raw material within the production of fluoropolymers, fluorolubricants and many refrigerants.This escalating demand paired with general shortage of raw materials is responsible for a dramatic price increase (almost double during the last year), shortages, and we expect both these factors to continue in the near future.

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