"A wise man does not need advice and a fool won't take it."
High-density polyethylene has replaced, for the most part, the other 3 classes of polyethylenes. It has been used predominantly for structural applications but is also extremely well suited as a lining material. HDPE also has exceptional resistance to a wide range of chemicals. Unlike LDPE, HDPE works well at higher temperatures and is triple the strength. HDPE meets all American and Canadian government requirements for direct food contact.
HDPE Rod
Polyethylene rod is FDA and easily machined