The Letterville BullBoard: Will white gold (12k) tarnish...

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Posted by Terry Whynott (Member # 1622) on :

...on an interior sign with no clear coat? It's only on a small piece that I really don't want to have to clear.

If you say it won't, then I will be done my panel tonite! [Smile]

Finally.

[ February 05, 2003, 03:28 PM: Message edited by: Terry Whynott ]

Posted by Si Allen (Member # 420) on :

White gold will tarnish! It is 50% silver...that's the part that tarnishes!
If it is interior, good chance that it won't tarnish, if it is in an office, or such place. If it is near a kitchen or industrial site, better clear coat it.

Platinum leaf is what you could use the next time.

[Wink]

Posted by Terry Whynott (Member # 1622) on :

Thanks Si. Would the varnish I cleared the wood with be enough to prevent tarnishing? I'm assuming it's just exposure to the air that causes it, correct? [Confused]

Posted by Michael Boone (Member # 308) on :

[ February 05, 2003, 11:47 PM: Message edited by: Michael Boone ]

Posted by Kent Smith (Member # 251) on :

Better to use clear acrylic or two component urethane because the sulfur in the solvent in conventional varnishes will tarnish the silver to a nice purple hue with an undertone of gold. Looks pretty but probably not the effect you desire. If you seal in some contamination, it might tarnish anyway. Next time use Palladium leaf or aluminum.

Posted by BrianTheBrush (Member # 1298) on :

Terry...
I'd just brush a little OneShot 4005 over it. The I even do this on small vehicle graphics, if we're not clearing the whole job afterwards (like if it's just an embellishment withen a striped area)
The white gold will tarnish, no if's ands or buts.

Keep on keepin' on.
Brian Briskie

PS... It seems you were a driving force behind this panel swap, before I started frequenting the board. If you decide to do this again, I'd really enjoy being a part of it. Thanks.

Posted by Cam Bortz (Member # 55) on :

White gold will tarnish...slowly, depending on conditions. I used some on a sign that went outdoors, with no clear coat. It has taken on a brownish tint, very slowly, over the past seven years, but is still a long way from turning black.

Posted by Randy Campbell (Member # 2675) on :

Has anyone ever tried liquid wax for this purpose? Just a thought.

Posted by Bill Cosharek (Member # 1274) on :

Yes Randy, that'll remove the tarnish. But over time, it will return - even on indoor stuff.

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