Robert Aronen is managing director for Boulden International in Europe and the Middle East. He has worked with nonmetallic wear rings since 1998, first as a rotating equipment engineer in a California refinery and for the past several years representing DuPont Vespel CR-6100. He has a BSME, 1991, from Rose-Hulman Institute of Technology. He can be reached at robert@bouldencompany.com.