We are manufacturing brass and Sterling silver jewelry.
Currently we are silver plating it to give a base coat, then gold plating and finally giving an ecoat using Axalta’s lacquer.
- One of the major concern is that what base coat should we use on brass to prevent tarnish.
- My jewelry surface have metal porosity issues most of the time, which later on create a trouble as they form bubbles and white spots on the surface.
- we are using lacquer with 10-11 degrees preparation and then ecoat it for 10 seconds on 30 volts and then cure it in a kiln for 30 minutes at 130 degrees. This doesnt looks sufficient to me as usually it is suggested to ecoat for atleast 40-45 seconts at 40-60 volts for getting optimum results. but when i try doing that the piece becomes completely dull and is full of bubbles.
- after a few uses the piece start peeling off a layer of coat which should not happen.
Looking for an advise.