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

TFE sheet  products, PTFE (TFE) and Kynar-PVDF  manufacturing requires a mineral called Fluorspar that's mined in Mongolia and China. The world demand for this mineral has risen 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 utilized within dozens of applications from non-stick fry pots and pans to ptfe tape for personal use. This mineral is actually a crucial raw material within the production of fluoropolymers, fluorolubricants and many refrigerants.This surge in demand coupled with shortage of raw materials has caused a dramatic price increase (almost double throughout the last year), shortages, and we expect these two factors to continue in the near future.

Acetal Copolymer