Low odor, non-film forming aqueous emulsion polymer which aids in reducing the raw material costs of trade sales coatings by supplementing the hiding offered by the prime pigment. The polymer consists of hollow acrylic-styrene beads supplied in emulsion form. Initially these beads are filled with water. When a paint containing ROPAQUE OP-62LO Opaque Polymer dries, the water permanently diffuses from the core of the particle and is replaced by air. These encapsulated air voids supplement the hiding effect of titanium dioxide, which permits the manufacturer to reduce the amount of titanium dioxide without sacrificing hiding power and tint strength. The polymer beads are more spherical and uniform in size than the pigments commonly used to provide hiding in paint. Consequently, employing ROPAQUE OP-62LO Opaque Polymer has the effect of reducing the total surface area of the hiding components in the paint, thus reducing the amount of vehicle required to bind those particles.