On concrete slabs that have been poured correctly (i.e. minimum 25mPa) and are in otherwise good condition, our rollcoats are designed to
penetrate for strong adhesion, without soaking in too much and looking patchy. In these situations, priming is generally not required.
However, on porous, powdery or rain-affected slabs, we do recommend applying an epoxy concrete sealer first to seal off the surface.