Question

Why they are suggesting to apply a coat of paint or grease in metal objects?​

Answer 1

Answer:

Explanation:

Ferrous metals like iron and steel can oxidize to form rust. This weakens the metal and can cause failure of the part. To avoid rust and corrosion, a variety of different coatings can be applied to the metal. Coatings are designed to prevent oxidation by keeping the part from exposure to oxygen and water.

Answer 2

Answer:

Answer:To Keep them safe from Rust

Answer:To Keep them safe from RustExplanation:

Grease Makes A layer of protection to the metallic surface so that rust cannot stay on the object