Attempting to retrieve painted image from rusted galvanized sign

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SUMMARY

This discussion focuses on methods to retrieve a painted image from a rusted galvanized sign. The original logo was likely painted in black stencil over galvanized sheet metal, which has deteriorated due to rust. Participants suggest exploring chemical processes, specifically mentioning aqua regia as a potential solution for revealing the outline of the image. The feasibility and effectiveness of this method remain to be tested.

PREREQUISITES
  • Understanding of chemical processes, particularly in metal treatment
  • Familiarity with rust removal techniques
  • Knowledge of stencil painting on metal surfaces
  • Basic skills in handling hazardous chemicals safely
NEXT STEPS
  • Research the chemical properties and applications of aqua regia
  • Investigate rust removal methods suitable for galvanized metal
  • Explore techniques for revealing hidden images on metal surfaces
  • Learn about safe practices for working with corrosive substances
USEFUL FOR

This discussion is beneficial for conservators, metal restoration specialists, and hobbyists interested in recovering images from deteriorated metal surfaces.

galvanized
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hello.
I am wondering if there is anyway to retrieve a painted image from a galvanized sign that has rusted over.
The original logo/name was likely painted in black stencil over galvanized sheet metal. I have not seen it in person yet, but from pictures it looks like image is gone and whole sheet is rusted.
Is there any chemical process to retrieve the outline of the image?
Thanks!
 
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maybe toss it in a bath of aqua regia and see what develops:biggrin:
 

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