A 100% acrylic, redispersible powder designed to improve the performance of Portland cement mortars. Incorporating this powder allows compounders to attain the dramatic improvements in adhesion, abrasion resistance, flexural strength and exterior durability that are associated with acrylics. This product is supplied as a powder that can be blended directly with aggregate cement and other formulation aids to form convenient and cost-effective “one-pack” systems. One-component systems reduce environmental waste (use containers) and lower shipping and packing costs.