4.2.2 Prevention of Rusting

Last updated at April 25, 2026 by

What is Prevention of Rusting?

It is protecting iron objects from air and water contact to stop rust formation .

Key Facts and Examples
  • Painting iron objects prevents air and water from reaching iron surface .
Example: Painted iron gates, painted car bodies stay rust-free
  • Oiling and greasing creates protective layer on iron surfaces .
Example: Machine parts, tools coated with oil or grease
  • Galvanisation means coating iron with thin zinc layer .
Example: Galvanised iron sheets, water tanks, buckets
  • Zinc coating protects iron even if coating gets scratched .
Example: Galvanised nails resist rust better than plain iron nails
Rust Prevention Methods Painting Blocks air and water contact Oiling Creates protective oil layer Greasing Forms grease barrier coating Galvanisation Zinc metal coating protection
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