Revive Color Refresher improves the appearance of existing, unsealed exterior colored or uncolored concrete surfaces in need of refurbishment or renovation. It adds a measured amount of color to concrete without producing a paint-like appearance. The product penetrates and reacts with the concrete so no film is formed. The color becomes a part of the surface, resulting in the appearance of newly placed concrete. L.M. Scofield. 800-800-9900.