FAQ: What are the main differences between epoxy and phenolic RTRC conduits?


The main difference is fire resistance. Epoxy RTRC conduit has an operating range of -60°F to 250°F whereas phenolic (Flame Shield®) RTRC can be exposed to temperatures up to 1,850°F for two (2) hours. Phenolic conduit also meets the elevated temperatures requirements for exposed conduits of both the National Fire Protection Association (NFPA 130) & NFPA 502.