Asian Paints Apex Waterproof Exterior Emulsion is a water-based 100% acrylic, exterior wall finish. Asian Paints Apex Waterproof Exterior Emulsion is a high performance, long-lasting exterior paint specially formulated to withstand extreme tropical conditions of high rainfall, humidity and heat.Apex provides excellent resistance against the growth of algae and fungi on the walls. Apex offers excellent protection against alkali and UV degradation.