NIPPON PENETRATIVE EPOXY PRIMER is a two-component solvent based low viscosity epoxy primer modified for deep penetration into concrete substrate and enhanced with adhesion promoter for improved adhesion. It is to be used on prepared concrete to seal the porosity of concrete, provide deep penetration to enhance adhesion and re-strengthen weak concrete to prepare for polymer overlay. It is suitable for use as a tie coat between concrete substrate and solvent-based topcoat, such as NP EA4 FINISH.