Isocast 55A is a color stable, 100% solids polyurea hybrid joint filler designed specifically for concrete flooring. Offering exceptional adhesion and rapid cure times, it performs perfectly under traditional floor coatings in heavy traffic areas as well as beneath clear coatings for decorative finishes. With a generous flush shave window ranging from 30 minutes to over 24 hours, Isocast 55A delivers outstanding application flexibility and ease, helping you keep projects on schedule without compromising quality.