Products > MG Chemicals > Silver Conductive Pen > Ammonium Persulphate
Copper Etchant Ammonium Persulfate crystals are used as an alternative to the traditional ferric chloride to produce a cleaner copper etchant solution. Mixed product must be stored in a vertical container. One kilogram of crystals will produce four liters of etching solution when mixed with water. Not compatible for use with Cat. # 416-RP Etch Resist Pen.
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