PTFE (TFE) and Kynar - PVDF are both on allocation.
PTFE - Polytetrafluoroethylene products, PTFE (TFE) as well as Kynar-PVDF manufacturing requires a mineral called Fluorspar that's mined in Mongolia and China. The worldwide need for this mineral has risen significantly, along with the supply has tightened. PTFE materials have high temperature resistance, excellent chemical resistance and really low co-efficient of friction (slick) and is used within a lot of purposes from non-stick fry kitchenware to ptfe tape for use at home. This particular mineral is actually a crucial raw material inside the production of fluoropolymers, fluorolubricants and several refrigerants.This increased demand bundled with general shortage of raw materials is mainly responsible for a dramatic price increase (almost double over the past year), shortages, and we expect both these factors to stay in affect in the near future. Acetal Copolymer