We use a product from Egyptian Coatings. The lacquer is called Clear
Endurlac and the thinner is Slow Dry Thinner.
Let me caution you though, we have spent a considerable amount of
time trying to get the mixture right. You will get a rainbow effect
on your pieces if you do not have your mixture right. We have also
had to educate our customers because if you use this lacquer coating
on your jewelry that you wear close to the skin it will wear off.
Some of our customers have thought that the metal was peeling off
when in reality it was just the lacquer coating wearing off. Overall
after a quick heads up to our customers we still feel the benefits
of prolonged wear without tarnishing out weigh the customer that is
concerned about the metal peeling off.
Hope this helps.
Donda Cordova