What caused the Teflon and Kynar- PVDF long lead times

In the last year, the market has experienced more difficulties than I've come across inside my thirty years experience. In the past I have seen sharp price increases, and I have seen several shortages, and delivery issues stemming from material allocations from resin manufacturers. This is definitely the very first occasion I have seen all these issues at the same time.

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

The two of these resins are in short supply. The  PTFE Sheeting product PTFE (TFE) and PVDF  manufacturing requires a mineral called Fluorspar that's mined in Mongolia and China. The worldwide interest in this mineral has increased significantly, along with the supply has tightened. PTFE materials have high temperature resistance, excellent chemical resistance and very low co-efficient of friction (slippery) and is used throughout a good deal of purposes from non-stick fry pots and pans to ptfe tape for personal use. This mineral is actually a crucial raw materials inside the production of fluoropolymers, fluorolubricants and many refrigerants.This increasing amount of demand bundled with general shortage of raw materials is responsible for a dramatic price increase (almost double over the past year), shortages, and we expect these two factors to continue in the near future.

Local Performance plastic sheet