Water Based Epoxy Primer has been developed specially for fresh, moist, damp and old concrete prior to application of epoxy and polyurethane top coats. The Epoxy Primer is developed for water based epoxy and solvent less epoxy/polyurethane final coats over a concrete surface. The Epoxy Primer serves as a sealer coat, as it penetrates into the concrete capillaries and seals them. The Water Based Epoxy Primer further reduces the absorption of subsequent epoxy and polyurethane coating materials, thus improving coverage with enhanced protective effect.