Because the paint would get in the way and fall of when the chisel is in use. Wiping it down with oil is a better choice.
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
paint won't stop rust, it only prevents it if apllied to clean metal.
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
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.
Water. Salt accelerates the process. To stop things rusting keep it dry of use paint or grease.
Metal comes in contact with oxygen. That's the main reason that many mechanics wipe down their older metal tools with oil (WD-40). The coat of oil prevents air from contacting the metal. That's why they spend much more than $100,000 to paint a bridge. The coat of paint saves them. H2O, water, has the same effect on metal.
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.
Substances that don't stop iron from rusting include:flourcementtoothpasteironlyemilkpastahairdirtcarbonwatersalad dressingaspirincopperpaperlavasulfurperchloroethylenemethanesilanestrychninetangsugarhemlockradonsaltetc.
No, it can't.
He was quite protective of his food.A thick protective layer of red lead paint helped stop rusting on the ship's superstructure.