salt solution

salt solution

Easy Etching metal with a battery and vinegar salt solu

2mo ago
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Description

In this video I try a few different techniques that use a battery and vinegar salt solution to etch into metal. I try holding the damp paper towel to the metal and try tapping it on the metal, which works better than just holding it on. I add in a small 12v fan from an old computer in line with the positive side and see that that also helps quite a bit. I also switch out the 2 9v batteries, which were hooked up in series to create 18v, with a 18v drill battery and found that the 18v drill battery was a huge difference.