In my experience, while the wax is great for the show room, neither
wax nor lacquer will survive mistreatment at home, and residual wax
or lacquer means the piece will likely end up looking pretty yucky;
render the pieces almost impossible for customers to clean
satisfactorily, and add another step for the professional cleaner.
I’ve tried both, experimentally, on pieces I wear myself, and I
really don’t like the way they turn out with time, even with the care
I give my own jewellery.
I strongly believe that customers need to have it explained to them
that silver and copper WILL tarnish over time (even the “tarnish
resistant” alloys will eventually) This will occur faster or slower
depending on local environmental issues (e. g. town vs country),
individual body chemistry and how often the piece is worn.
I always explain that just as they wouldn’t expect to wear their
clothing without laundering or cleaning it, and they wouldn’t keep
it all jumbled up in a box to be rummaged through daily, then they
shouldn’t expect their jewellery to stay pristine without some sort
of customer care. Then I often show them an older piece (something
I’m wearing probably) that has built up a gorgeous patina over time,
and tell them that with the correct care, their piece will have a
singular patina that is unique to the wearer.
Metals respond spectacularly well to just a little bit of TLC, and
once explained to them in terms of their clothing, my clients seem to
have a “light-bulb” moment, and they understand how giving a little
bit of care to their jewellery is not a big chore and the results far
outweigh the “bother” of the attention.