From the Manufacturer:
How to Use:
IDEAL FOR CARS & VERTICAL SURFACES
PREP: For best results, remove surface dirt, oil, grease or anything that could present a barrier between Metal Rescue GEL and the surface of the metal. Pre-cleaning is not required, but the speed and performance of GEL will greatly improve if dirt and grease are removed before application.
APPLY: Use gloves. Apply a 1/8” thick layer of Metal Rescue GEL (via brush, roller or wipe on) to rusted area on metal’s surface. (1/8” is approximately the same thickness as two pennies stacked on top of each other.) GEL will darken in color as rust is removed.
WRAP: Do not allow GEL to dry – GEL must remain moist to remove rust. To keep GEL moist, use Metal Rescue’s signature plastic wrap method:
Tear one sheet of household plastic wrap from roll, slightly larger than application area.
Lay sheet of wrap over surface of GEL, making sure that entire application area is covered.
Ensure edges of wrap are secure to protect GEL from exposure to air.
Check periodically and reapply wrap if more process time is needed. Process time is dependent on severity of rust:
Light rust up to 2 hours
Moderate rust up to 12 hours
Heavy rust up to 24 hours
If stubborn rust remains, repeat application process.
REMOVE/PROTECT: Once desired results are achieved, rinse or wipe off GEL completely. Result is clean, bare metal ready for use or additional processing.
