If necessary apply a new coat of paint to the area.
How to rust new sheet metal.
This helps to create a uniform coat of rust instead of certain areas being rustier than others.
Move the metal object you want to rust out to a yard or open garage on a hot day.
Rinse it clean and wipe it dry or let it air dry.
Then scrub with warm water and soap and apply a metal conditioner or other protective coating to prevent further oxidation.
For this specific horseshoe i let it sit in the vinegar for about 5 minutes before i emptied the vinegar from the container.
Direct sunlight helps speed up the rusting process.
Now your steel will be ready for the main event.
Next comes the rusting solution.
Of hydrogen peroxide and 12oz.
Of salt into a spray bottle with 8oz.
Let your metal objects sit in the vinegar for as little or as long as you want then drain the vinegar from the container.
Use a wire brush that can scratch up the surface of new corrugated metal to help it rust better.
Pour some white vinegar into the spray bottle and then spray every inch of the metal object.
Let it dry in the sun and then repeat several more times.
Make sure to rinse off the steel thoroughly.
Shake it well so the salt is completely absorbed.
Because rust spreads quickly it s important to scrape it off as soon as it appears.