We request that if you have needs or on going projects for these or other hard to get materials. Most plastics have seen a 20% or higher price increase in the first few months of 2020 not just the PTFE and PVDF. To help you, our customer, we will continue to have large inventories of these hard to obtain materials in stock, and would talk to you about adding more of the items you purchase your have regular requirements for. Click for more info