Job Description:

• 1) Etches designs, lettering, and figures on processed plates of brass, steel, copper, zinc, magnesium, or plastic: Mixes acid solution according to formula, and pours mixture into etching tank.

• 2) Places plate on rack in etching tank, sets tank timing controls, and starts machine that sprays plate with corrosive solution.

• 3) Removes plate periodically, and measures depth to which metal has been etched, using gauge.