Silverhook Service Spray penetrates corroded parts, seized nuts, and bolts, etc, for easy removal. It will free door lock and hinges, linkages, etc, and is ideal for all moving parts requiring light lubrication. It will stop squeaks, displace rain/seawater and moisture from metal surfaces (i.e. garden tools), ignition systems (inc. automotive and marine) and moving parts. It will remove dirt and grime, and protects against rust and corrosion. Also removes crayon marks, gum, adhesives, and tar from most surfaces.