A professional who coats rings and jewelry fittings with acid solution or wax to protect metal from oxidation during soldering process. Responsibilities include:

• Drops fittings into boiling acid solution for specified time, or applies wax to fittings, using brush.
• Removes acid coated fittings and heats them in oven to harden coating.
• Dips soldered articles in chemical solutions and water to remove coating.