SENO 3207 SB | PCB Production Equipment

Fine-etching crystals, type Seno 3207

Modern, versatile and clean etching agent with especially even action for high contrast, low under-etching and unproblematic neutralization. Contrary to ammonium persulfate, this extraordinarily fine powder dissolves perfectly in water and does not crystallize even at 0 °C. The cold solution is only slightly aggressive. Splashes and spills can be rinsed off easily with water. This fine-etching crystal is an ideal alternative to iron-III chloride. Absolutely free of ammonium. Can be used many times over for all conventional processes. Etching machines with a high throughput rate should be equipped with a cooling system. This agent is intended for technical use only. It must be appropriately used, stored and disposed of. Work material regulations should be observed.

Operating temperatures: 30 to 40 °C, does not crystallize

Etching speed: (depends on the technique, temperature and copper content of the solution) is 30 to 8.0 my/min with an average copper transfer of 30 to 40 g/l

Optimal concentration: 200 to 240 g/l

Quantity: 220 g bag