Unless the coins are just general circulation cents, you shouldn't try to clean them!! If a coin has any numismatic value above its face value, trying to clean it at home will almost always damage the coin and reduce its value. Go to a hobby shop and you can get holders that will keep the coins airtight and reduce the amount of oxidation (see below) that occurs.
Let them soak in olive oil. This will also loosen up any corrosion on the surface, so that you can gently remove it. And it will leave a protective coating on the coin that will help protect it from the elements.
The best way to prevent future "rust" is to first remove any foreign material on the coin that may interact with the metal, then put the coin into an airtight protective holder, and finally store the coin in a cool DRY place.
The olive oil is probably the best corrosion preventive that can be safely used on copper coins, but it WILL cause a color change, so it would be unwise to use it on a valuable uncirculated coin. I bought a couple of rolls of steel cents that had been "preserved" with WD40 and stored in airtight tubes for several years. I had to cut the tubes off and soak the coins in lighter fluid to get them apart!
P.S. "Rust" normally refers to iron or steel combining with oxygen to form a flaky brownish material, so only 1943 cents can truly be said to rust. Copper cents do oxidize, however.
Keeping an outdoor table dry and covered from the elements will help keep it from rusting. Paste wax, greasing, and rust-proof paint are other ways to keep them from rusting if you're unable to keep them out of the rain.
Keep it away from water and away from the sun
by the use of oil
Not recommended to use in environments with chloride ions.
Rusting is an oxidation reaction.
No, because rusting has to do with oxygen and IRON. Wax (obviously) has pretty much nothing to do with iron. See, rusting is basically the reaction of oxygen or moisture/water on iron.
undercoating keep vehicle garaged when not in use move to Arizona, USA
Keeping an outdoor table dry and covered from the elements will help keep it from rusting. Paste wax, greasing, and rust-proof paint are other ways to keep them from rusting if you're unable to keep them out of the rain.
Paint it
In order for you to keep your iron pot from rusting, you will need to keep it away from any water or moisture. I have also found that coating the iron, such as a seal or paint will dramatically limit the amount of rusting.
To keep the tip from rusting.
yes i have coating to put inside a 3200 gal water tank to keep it from rusting
Water. Salt accelerates the process. To stop things rusting keep it dry of use paint or grease.
use a kind of spary to keep it from rusting up and also make sure you put it in a dry place stephs answer
It is important to put your battery far away from moisture to prevent it from rusting.
to keep tradition of the pennies
spraying diesel on it will not keep it from rusting it will damage the bike