If you have paint stain on your leather, you should first try cleaning
the stain with saddle soap. If the paint stain lingers, you can try
wiping it with rubbing alcohol. If your leather has been dyed, you
should do a spot test first in a non-visible area to make sure the
alcohol doesn’t fade your leather.
If you have gum stuck on your leather, grab an ice cube. Rub the gum
with ice until it becomes hard. Gently peel the gum away. If all the
gum doesn't come off, repeat the process. You should never try to
scrape gum off of leather because it will scratch the leather.
You can remove mildew and mold from leather the same way you remove ink
stains, with isopropyl alcohol. Mix equal parts water and alcohol
together. Dampen a soft cloth in the liquid and then wipe the molded or
mildewed leather. The leather will be damp, allow it to dry naturally
away from direct sunlight.
To remove road-salt stains from leather you will need to mix 3 parts
vinegar with 1 part water in a bowl. Dip a cotton ball into the liquid
and then wipe the salt stain away with the cotton ball.
Rubbing alcohol or isopropyl alcohol works the best to remove ink
stains from leather. To clean the ink stain, get a Q-tip and dip it in
the alcohol. Gently dab the ink stain and apply the alcohol to it. Let
it sit for 15 minutes. Then, get a dry towel and wipe the ink stain.
Most everyone has heard the saying: “oil and water do not mix. If you
have to clean up a grease or oil stain from leather, do not use water.
It will only make the stain worse. First, blot the excess grease or oil
from the leather. Sprinkle cornstarch over the stain and let it sit
overnight. The following day take a soft cloth and wipe the cornstarch
away. The cornstarch should have lifted the grease or oil stain.