This is a summary of the St. Louis Gateway Arch conservation research and planning project sponsored by the Getty Foundation. It provides a comparative analysis of high pressure water, laser, and chemical cleaning for corrosion remediation and preservation of a historic stainless steel structure.

Technical Paper
Is Drying After Passivation Necessary to Form a Passive Layer on Stainless Steel?
Astro Pak does not consider drying nor dry hold time necessary for a passivation process to be complete. The passive




