Effectively removes salt residue from pores in metal and other surfaces to prevent rust and corrosion. Use on salt spreaders, snowplows, truck boxes and truck chassis for maximum longevity. Any surface exposed to salt should be treated with our Salt Shield. Salt Shield contains actives that dissolve, release and remove salt crystals from any surface. It will work to protect against salt corrosion and reduces costly repairs caused by salt. Highly effective corrosion inhibitors leave a protective film on surface until surfaces are again exposed to water. Will not strip wax or cause streaks or spots. Spray on diluted product or use pressure/power washer. Biodegradable and non toxic to humans and the environment. Concentrated, can be diluted to 1 to 512 parts water. Protects aluminum, copper, brass, mild steel.