This product is NOT an acrylic or water-based coating that constantly requires re-application. Superior RV® is a thermoplastic liquid rubber that forms a permanent, seamless replacement membrane, similar to EPDM rubber, over your existing roof. It handles like a heavy enamel and self-levels to a bright white, heat reflective surface. Superior RV® does not wash away, chalk or discolor over time because it is not a paint, but rather a synthetic rubber barrier. The new surface remains permanently flexible, is almost indestructible, and is totally resistant to uv rays, standing water, ice, hail, and abrasion. The product is tougher than most sheet rubber membranes and is backed by a 15 Year Product Guarantee.