Edition 55 // July 2019 Tech Tips by NAsscO is A bi-mONThly ArTicle ON TreNds, besT prAcTices ANd iNdusTry Advice frOm NAsscO's TreNchless TechNOlOgy membership prOfessiONAls. The Role of Resins in The CuRed-in-PlaCe PiPe (CiPP) PRoCess By NASSCO Member Kaleel Rahaim, Principal Engineer, CIPP Consulting LLC For the past 40 plus years, the cured-in-place pipe (CIPP) process has been a significant tool to renovate the nation's deteriorating underground pipe infrastructure. The process saves time, energy and cost for a municipality or industry in need of a "fix". The significantly reduced social impact contributed by the process has made a difference to business owners, municipalities, drivers and others. An important material in the CIPP process is the resin component. The chemical structure of the polymers used contributes to the overall workability of the process. This article will describe the differences in resins used and reasons for the right resin choice.