Ash Grove Kolorstone Kolorflex Admixture is an acrylic polymer emulsion specifically designed to be mixed with Kolorstone concrete coatings when applying the Ash Grove Kolorstone system. Using Kolorflex Admixture creates a tenacious bond with the substrate to be coated and aids in obtaining water and crack resistance and high flexural strength. It also enhances resistance to freeze/thaw lifting and spalling.