CISBOND A-250 is a Modified Acrylic Polymer based system, specifically designed for modified Portland cement compositions. Mortar modified with A-250 has improved physical strength, and superior adhesion to old concrete, masonry, brick, and many other surfaces. The dispersion contains an anionic emulsifier system and is free from film forming aids, solvents and plasticizers. The product upon coating gives a tough, hard-wearing surface with waterproofing. Product however allows trapped vapors to escape thus preventing peeling and blister formation.