Arrange steps of repairing corroded steel in chronological order:
1. Exposed surface cleaned by needle scalers, power air brushes etc
2. If reinforcement area is reduced more than 10 % additional steel is welded.
3. Remove all holes and loose portions with hammer.
4. two coats of mineral based polymer corrosion inhibitor primer is applied.
1
1-2-3-4
2
3-2-1-4
3
3-1-2-4
4
4-3-2-1