Cupric Etching

Copper Etching

46% Without Salt 40% With Salt
Sodium Chlorate 46% Sodium Chlorate 40%

Copper Microetching

Peroxide Based Microetch Ferric Chloride Based Microetch Potassium Persulfate Based Sodium Persulfate
Quantum Etch Sur Clean 92 ME 515L (Liquid) Sodium Persulfate
Circutek ME-515 (Solid)