Dear Sir: For maximum usefulness regarding the discussion forum, you should register for the forum. It is does not compromise your provicy. Re your question regarding thermoplastics for your application, our recommendation is to contact one or more of the major manufacturers of thermoplastic materials for an initial recommendation. Depending on the critically of your needs, you may want to discuss their recommendations with in independent consultant. P.S. Your selection will be probably limited to either PP, PE or PVDF. David Hendrix The Hendrix Group Inc.