Acetone (womens nail polish remover) is fairly good, mineral spirits is better and xylene or gasoline or diesel are very good.
The tar blocks oxygen from getting to the iron. But tar is such a nasty substance! There are a lot of better rust proofers available for iron. A lot of people use oils (the process of seasoning a cast iron pan involves heating the pan very hot then applying fat to it, allowing the fat to work itself into the pores of the iron), waxes or just paint.
It is carbon.
tar and other toxic chemicals.
Yes, heroin tar can be hard and appear as black rocks. The texture and appearance of heroin tar can vary depending on its chemical composition and impurities present. It is typically sticky and tar-like, but can sometimes form into solid, rock-like chunks.
Tar and gasoline are both hydrocarbons, and so tar is fairly soluble in gasoline, which means that it will dissolve in it, and you can then wipe it off. There are safer cleaning products to use than gasoline however, which is extremely flammable and dangerous to work with.
I heard that you should dab a little vinegar on all of the the shiny area before you wash it and a little more before you iron it (iron it on the wrong side, inside out) if it still is shiny.
I believe the substance you are refering to is coal tar. Coal tar is a byproduct of burning large amount of coal when the smoke condences you are left with a very thick tar like substance. hope this helps.
tar
uhh ashphalt
the sticky brown substance in a cigarette is tar.
"Tar' is a very general term for any, well, tar-like substance; it's not a specific compound or mixture of compounds. Most tars have no particular reaction with water.
FML!!! I HATE TaR
The tar blocks oxygen from getting to the iron. But tar is such a nasty substance! There are a lot of better rust proofers available for iron. A lot of people use oils (the process of seasoning a cast iron pan involves heating the pan very hot then applying fat to it, allowing the fat to work itself into the pores of the iron), waxes or just paint.
the tar like substance prevents your lungs from taking in enough oxygen.
tar
It is carbon.
Tar