A high quality, low V.O.C., next generation, zinc free floor seal and finish. ZF 33 Zinc-Free Seal & Finish is currently being tested to comply with the requirements of GS-40, the Green Seal Standard for Floor Finish. It is an Environmentally Preferable Product which is formulated to perform well yet have no harmful effects on our environment or to the person using the product. ZF 33 Zinc-Free Seal & Finish contains no heavy metals, formaldehyde, ammonia or nonylphenol surfactants. It exhibits a deep wet look gloss and it can be incorporated into any floor maintenance program. High levels of zinc have been found to be toxic to aquatic life.