If their was a better method or material I think they would be using it.
Gold is pretty inert in most environments.
This may result in adhesion problem. Just dull soft nickel and dull soft gold should give the desired diffusing surface. It is not possible to diagnose a finishing problem or the potential hazards of an operation via these pages. All information presented here is solely for general reference and does not represent a professional opinion nor the policy of an author's employer. If you have a question of your own, please post it on our 'new letter' form .