Ash Grove KolorStone Twin-Pak Mixing Kit is a ready-to-use kit containing one bag of KolorStone Classic or KolorStone Fine powder and one container of KolorFlex Admixture conveniently packaged inside a mixing container. Ash Grove KolorStone® Classic is specifically designed to create architectural cement finishes on a variety of surfaces including sidewalks, patios, steps, etc. Kolorstone Classic is used with Kolorstone Kolor Flex. Kolorstone® Kolorflex Admixture is a liquid acrylic polymer designed as an admixture for Kolorstone Broomcoat of KolorStone Classic but can be used as an admixture for any Portland cement-based repair material.