MAR ENEU OPS is a highly stable etch process formulated to ensure reliable clean base copper surfaces. The MAR ENEU OPS provides a smut-free, uniformly etched copper prior to electroless and electrolytic plating.
MAR ENEU OPS is supplied as a dry acid salt which can be dissolved in dilute Sulphuric acid at ambient temperature. The system provide a fume-free copper activator.
The stability of the MAR ENEU OPS process provides up to four times the life of conventional persulphate solution, reducing rejects due to poor adhesion caused by copper recrystallization.
Depending on application, MAR ENEU OPS is usually worked to exhaustion rather than run in a replenish able mode. Reliable copper activation is achieved from a 100 g/litre solution until copper concentration reaches 20 g/litre.
For base-copper etch in Electroless & Electroless Nickel lines.
|MAR ENEU OPS||150 g/litre|
|Sulphuric acid 66° Baumé||2% by volume|
|Temperature||21°C to 26°C|
Air agitation of MAR ENEU OPS solutions will produce a more even etch, while extending its life.
|Tanks:||PVC, rubber lined, polyethylene, polypropylene|
|Heaters:||Quartz, Titanium, PTPE required to raise temperature to 25°C.|
|Heaters:||Quartz, Titanium, PTPE|
Half fill tank with water. Add required amount of MAR ENEU OPS, depending on specific application. Stir thoroughly. When fully dissolved, add 2% Sulphuric acid and adjust volume. Protective face masks, boots and aprons are recommended.