FERRIC CHLORIDE ETCHING CONCENTRATE
for etching copper PC boards.

Supplied in a dry powder form for mixing with ordinary tap water. Convenient in several ways, ships and stores easily and when mixed with water the process creates heat. When used freshly made, the solution will not have to be pre-heated.

The 1 lb. package will produce 4 pint of solution which will etch about 800 square inches of 1 ounce (standard) copper board.