Use Acrylex, a one-component, water-based, non-yellowing acrylic polymer emulsion, as an admixture for portland cement mortars, cement plaster, stucco, and concrete mixes. It allows the manufacturer’s two-compound cementitious waterproofing products to achieve their final properties. Acrylex aids adhesion and it increases the strength of portland cement materials. The VOC-compliant product reduces shrinkage, cracking, and freeze/thaw damage. Merlex Stucco.