Lets first look at the chemical formula for rust
Fe + O --> FeO
FeO, the product, is rust. By having a physical barrier, it prevents or stops the iron from coming into contact with oxygen thus stopping the reaction from taking place.
cover in oil, paint, grease or plastic. or galvanise it
For something to rust you need oxygen and water. Rust specifically relates to iron (or iron products such as steel); it is iron oxide. When the metal comes into contact with oxygen disolved in water the iron in the metal reacts with the oxygen disolved in the water to form iron oxide - rust. This is why most metals are protected, to stop water and oxygen getting into contact with the metal and causing corrosion i.e. rust. Common methods of protection include galvanising, painting and coating.
Galvanising is the act of coating a metal (iron or steel) in a thin layer of zinc. The metal is dipped in molten zinc.
The most rust resistant stainless steels contain nickel and chromium in addition to iron.
Flyscreens are a barrier that stop flying insects from getting inside the home.
rust is iron oxide, this is FeO. To stop the addition of oxygen you must place a barrier in the way, the most cost effective way of doing this is to paint the metal.
no
If there is no oxygen available, iron can not form iron oxide
Substances that don't stop iron from rusting include:flourcementtoothpasteironlyemilkpastahairdirtcarbonwatersalad dressingaspirincopperpaperlavasulfurperchloroethylenemethanesilanestrychninetangsugarhemlockradonsaltetc.
To stop them rusting.
Rusting is caused due to exposture of iron to moisture. When iron articles are painted, it is not exposed to the atomospheric moisture. This is how paint stops rusting
The most important solution is to use greases.
No, after painting iron can not make a strong bonding with concrete, the purpose of painting is the prevention of rusting but rusting process occurs in presence of carbon dioxide and moisture, when iron bars are sealed in concrete the rusting is not possible.
cover in oil, paint, grease or plastic. or galvanise it
they can apply paint to the iron or steel to stop the rusting of the car
paint won't stop rust, it only prevents it if apllied to clean metal.
no. even though people think that it helps it doesn't. jing yi bao told me