Teflon (TFE) and Kynar - PVDF both are on allocation.

PTFE - Polytetrafluoroethylene  product PTFE (TFE) and also PVDF  manufacturing requires a mineral called Fluorspar that's mined in Mongolia and China. The worldwide interest in this mineral has grown significantly, along with the supply has tightened. PTFE materials have high temperature resistance, excellent chemical resistance and very low co-efficient of friction (slick) and is utilized within a great deal of purposes from non-stick fry pans to ptfe tape for use at home. This mineral is a crucial raw material inside the production of fluoropolymers, fluorolubricants and quite a few refrigerants.This escalating demand mixed with general shortage of raw materials has caused 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.

common plastic rod