Z-Prime II® is a universal, water-based, high-performance latex primer. Virtually free of volatile organic compounds (VOCs). It does not contribute to indoor odors or outdoor air pollution. Z-Prime II® is ideal for use in hospitals, nursing homes, schools, office buildings, hotels, or any area where even mild paint odors could be a problem. It dries super-fast, adheres to problem surfaces, sands readily within one hour, blocks most troublesome stains and cleans up with soap and water.