Rust-Oleum Concrete Patch & Repair is a versatile, easy-to-use formula that can be used to repair cracks, holes, and other damage in concrete surfaces. The patching compound is a two-part epoxy that is mixed together before application, creating a strong and durable bond. The formula is self-leveling, making it easy to apply with a trowel or putty knife. Simply mix the two parts together, apply the compound to the damaged area, and smooth it out with a tool. It dries quickly and can be sanded, painted or stained to match the existing concrete surface.