3M™ Zinc spray 16-501 provides an effective way to inhibit rust and corrosion with 97% pure zinc. This convenient aerosol leaves a barrier coating similar to hot-dipped galvanized surfaces. Noted for its quick drying capability, 16-501 zinc spray preserves base metal, even when scratched or chafed. This product is extremely flammable. Read and observe warnings on the label. Not for use on energized equipment. Used for generation, transmission and distribution equipment including towers, transformers, light standards and other metal and galvanized surfaces,