BAKIT MAHALAGANG GUMAMIT NG MAGANDANG PRIMER SA WALL? Wall primer plays an important role in sealing the porous surface of concrete, preventing moisture penetration, and ultimately enhancing the adhesion of subsequent paint layers, ensuring a strong bond between the paint and the substrate, and effectively minimizing the risk of peeling, flaking, or blistering over time. Buildrite Tofil 803 is an excellent water-based primer and sealer suitable for interior use on different surfaces such as maso