Electrolytic Rust Removal - A Detailed Illustrated Tutorial, page 5
1. Introduction: Comparing Effects of Coca-Cola, Vinegar & Electrolysis Methods
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To compare the effects of three methods - Coca-Cola, Vinegar and Electrolysis, I decided to remove a little bit of the converted or remaining rust layer from nails that were treated with those methods.
Three Groups of Iron Objects Treated with Coca-Cola, Vinegar and Electrolysis Respectively
To show a better presentation of the Coca-Cola effect, I used a large square nail, circa the 18th century, which was also treated with Coca-Cola for two weeks. You can see a thick layer of the converted rust enwrapping the base metal.
A Large Square Nail, ca. the 18th Century, in Better Condition
After I laboriously broke off a small fragment of the layer, a coating of rust showed up on the surface - not a good sign. It seems that when you wire-brush the converted rust layer off the relic after Coca-Cola cleaning, you still might face the same rust problem.
Rust Was Revealed After the Converted Rust Layer Had Been Removed
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