RC-Prep for Chemo-Mechanical Preparation of Root Canals, 18 Gm. Jar. #9007131 RC-Prep is a chemo-mechanical preparation used for root canals. This one-of-a-kind formulation contains glycol, urea peroxide, and ethylenediaminetetraacetic acid (EDTA). RC-Prep assists in getting rid of calcifications. It also acts as a lubricant in canals for optimum instrumentation and prevents reamers and files from binding, allowing them to move effortlessly. RC-Prep is also suitable for apex locators allowing for accurate readings each time. Available in 18 g per jar.