ICC Approved for Use in Cracked and Uncracked Concrete Pro-Poxy 500 is a two component non-sag high performance, 100% solids epoxy anchoring system that can be used with threaded rod and reinforcing bar in both cracked and uncracked concrete. Pro-Poxy 500 has been tested to ICC-ES AC308, ESR-3959 and is certified to NSF/ANSI Standard 61 by IAPMO R&T. Check out our on-site field test of Pro-Poxy 500!