Ecological acrylic primer with nanotechnology water dispersion for exterior and interior use. Compared to conventional water-based primers, it exhibits higher durability, stronger adhesion, and greater penetration ability on porous surfaces, such as drywall, adhesives, putties, spackling, plaster, and MDF, as well as on cement boards and concrete. It prevents the migration of calcium ions contained in the cement and plaster to the surface, without reacting with them. Almost odorless, user-friendly, and environmentally friendly. Ideal for the preparation of children's rooms, hospitals, and schools.