CorrosionX® Extended Duty (also known as CorrosionX XD) is a medium build (thickened) version of CorrosionX®. The higher viscosity offers longer-term resilience against displacement of removal by splash or spray. CorrosionX XD penetrates existing rust and corrosion, displaces moisture and prevents electrolysis. It leaves a non-hardening, self-healing coating for maximum protection against moisture intrusion, while providing outstanding, long-lasting lubrication for all moving parts. Performs on already wet and corroded surfaces as well.