Etching Acid for PCB 500 mL
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Prices updated: 13 Oct 2026
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About this product
Etching acid is a chemical solution used to remove unwanted copper from copper-clad boards when making a homemade printed circuit board (PCB). This 500 mL bottle is sold as a PCB etching product. Use it only with appropriate protective equipment and ventilation.
Specifications
- Volume
- 500 mL
- Application
- PCB etching
Frequently asked questions
How is etching acid used to make a PCB?
Print or draw your circuit on the copper side of the board with a resist such as a toner transfer or etch-resist pen. Then immerse the board in the etchant until the exposed copper dissolves, rinse it with water, and remove the resist.
What safety precautions should I take when using it?
Wear gloves and eye protection, work in a ventilated area, and keep the solution away from skin, clothing and metal surfaces. Store it in a sealed container away from children, and follow the safety instructions on the product label.
