Use Etch Pretreatment Blend the citric acid concrete etch with warm h2o for each the Guidance. Then utilize, scrub, and squeegee off the floor in a similar manner as being the degreaser. The citric acid will help open the highest pores from the concrete so the epoxy adheres very well. http://damienusfjl.jaiblogs.com/9920355/how-construction-painting-can-save-you-time-stress-and-money