Quadrant EPP - former Erta, Polypenco, Polymer, DSM EPP and Cestidur - is a global manufacturer/distributor of engineering plastics shapes  (rods, bars, plates, sheets, tubes) in Celazole PBI, Torlon PAI, Ketron PEEK, Techtron & Ryton PPS, Symalit PVDF, Fluorosint PTFE, Semitron ESd, Ultem PEI, Radel PPSU, PSU, PC, Ertalon & Nylatron PA, Acetron & Ertacetal POM, Ertalyte PET and Cestilene PE  for machined components such as bearings, bushings, gears, guides, rollers, wheels, pulleys, valves, seals, carriers and sprockets  used in food processing and packaging, medical, pharmaceutical, biotechnology, chemical, paper, textile industries, construction, material handling, electro & electronics, semiconductor and aerospace.