Gurus: I am a newbie. Can someone explain to me the differences between Nelco polymers, N4K-13, N4K-13EP, N4K-13SI, N4K-13SIEP, and N4K-13EPSI? Any lowdown on what the names suggest, will help. Are there any differences in the dissipation factors of these polymers? Which one is the best for signal integrity and impedance control? ------- Regards, Avtaar Singh ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List forum is accessible at: http://tech.groups.yahoo.com/group/si-list List archives are viewable at: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu