How can I speed up the time that it takes to remove the rust?

Metal Rescue GEL must be kept moist. If GEL dries, it will not work. Use Metal Rescue’s signature plastic wrap technique – apply GEL and cover with a layer of plastic wrap to maintain moisture, or as we like to say “Keep GEL from Dryin’ – Wrap After Applyin.”

In addition, GEL is temperature sensitive – use at or above room temperature. Operating temperatures for GEL are 68°F (20°C) to 150°F (65°C). If too cold, GEL will not work or will take much longer to remove rust. GEL performance will also be greatly improved if any grease, oil, loose rust, and/or dirt are removed prior to application.