Seals made of polyetheretherketone (PEEK) handle thermal expansion, have a long operating life, resist aqueous and organic chemicals, and retain mechanical properties up to 570°F. Optional custom molded-in joints can incorporate elastomer seals to minimize leaks or facilitate required fluid “pass through.”

Minnesota Rubber and Plastics, 1100 Xenium Lane North, Minneapolis, MN 55441, (952) 927-1400, www.mnrubber.com