Cheap PCB etching fluid
Difficulty: ★☆☆☆☆
Time: Less than 10 minutes
From scrap: ██░░░░░░░░ 20%
PreambleRecently I found in the Internet at a very cheap solution for etching PCB. To make it you need components which total cost not more than $0.5.
Previously, I etched with ferric chloride, and then used sodium persulfate, which does not stain. However, the solution I found is better and faster that both of them!
Materials- For 40 ml PCB etching fluid
- Hydrogen peroxide
- Lemon acid
- Salt
Tools- Pickling tank
- Step 1
Mix all the ingredients in the proportions:- Hydrogen peroxide 100
- Lemon acid 30
- Salt: 5
- Hydrogen peroxide 100
- Start etching PCB
- After 10 minutes
How to etch pcb fast and cheap
VideoAn another way to rapidly etch a PCB, let's watch!
Results and tips- Etches very quickly unlike etching by ferric chloride or sodium persulfate
- The whole process took 12 minutes
- The cost of this solution is very small in comparison with others
- Does not stain
