It is an excellent acrylic latex emulsion used for bonding new to new or new to old concrete in interior or exterior applications. AEROBOND AR is exiremely effective when used as an admixture with cementitious products such as patching compounds, masonry coatings, cement plasters, and masonry mortars. As an admixture, it not only promotes a strong bond, but also improves the curing, long term durability and resistance to moisture and cracking of the finished product.