CTSP Episode 017- SSPC-SP13/NACE No. 6 Surface Prep of Concrete By: Paul Atzemis, Jack Walker | March 12, 2018 in Podcast, Coating Application Jack Walker and Paul Atzemis hit the concrete. In this episode, they discuss the details of SSPC-SP13/NACE No. 6 The Surface Prep of Concrete. They discuss the importance of moisture tests and the curing of concrete prior to painting. Categories: Podcast | Coating Application Paul Atzemis, Jack Walker Paul Atzemis and Jack Walker host the Carboline Tech Service Podcast.