(1) Surface appearance
Photo-6 shows surface appearances of different hot dipped coated steel sheets after 10-year atmospheric exposure tests. (See page 12-13)
Table-6 is the condensation of the results:
a) Singapore: No major difference noted among W.R.Alstar and 55% Al-Zn. Galvanized has red rust all over and thus is inferior in corrosion resistance.
b) Manila: No major difference noted among W.R.Alstar and 55% Al-Zn. Galvanized has severe red rust all over and thus is inferior in corrosion resistance.

Table-6. Evaluation of surface appearance after 10-year atmospheric exposure tests




Photo-6-1. Surface appearance of several coated steel sheet after 10-year atmospheric exposure tests

Photo-6-2. Surface appearance of several coated steel sheet after 10-year atmospheric exposure tests



009