Attach the remaining end of the alligator clip to the q tip head.
Salt water etching battery charger.
Take the other alligator clip and attach one end to the negative part on the battery my green clip.
Metal etching with salt water and battery charger duration.
Ursula smith 2 772 views.
Etch your name in metal.
I find that you need to get it wet enough that it isn t just moist but it isn t dripping wet.
Place the copper piece in the container full of water and salt solution bending the edge of the copper long piece like an hook and hanging the piece of copper you want to etch in about the middle part of the container.