How-To Geek

Etch a Circuit Board using a Simple Homemade Mixture

If you’ve been dabbling in DIY electronics projects but you’re not so excited about keeping strong acids around to etch your circuit boards, this simple DIY recipe uses common household chemicals in lieu of strong acid.

Electronics hobbyist Stephen Hobley wanted to see if he could create an etching solution that wasn’t as dangerous and noxious smelling at traditional muriatic acid solutions. By combining regular white vinegar, hydrogen peroxide, and table salt, he created a homemade etching solution from ingredients safe enough to store in your pantry. The only downside to his recipe is that, compared to traditional etching solutions, the process takes a little bit longer so you’ll have to leave your board in the solution longer. Not a bad trade off for the ability to skip using any oops-I-burned-my-skin-off acids. Check out the process in the video below:

Hit up the link below for more information and and interesting explanation of the chemical process (he talks about not quite understanding it in the video but two chemists write in and give him the full run down).

DIY Etching Solution [Stephen Hobley via Make]

Jason Fitzpatrick is a warranty-voiding DIYer who spends his days cracking opening cases and wrestling with code so you don't have to. If it can be modded, optimized, repurposed, or torn apart for fun he's interested (and probably already at the workbench taking it apart). You can follow him on if you'd like.

  • Published 03/9/11

Comments (1)

  1. penywyse


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