remove fired liquid bright gold - WarmGlass.com

remove fired liquid bright gold

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rosanna gusler
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remove fired liquid bright gold

Postby rosanna gusler » Thu Oct 22, 2015 11:34 am

hi there . i have a bowl with thompsons liquid bright gold fired on and i want to take it off. i can not remember if sulphuric or nitric is the acid of chouce. help? rosanna
artist, owner of wanchese art studio, marine finisher

Kevin Midgley
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Location: Tofino, British Columbia, Canada

Re: remove fired liquid bright gold

Postby Kevin Midgley » Thu Oct 22, 2015 3:37 pm

BonAmi cleaner will remove it.

Brad Walker
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Re: remove fired liquid bright gold

Postby Brad Walker » Thu Oct 22, 2015 3:41 pm

Nitric acid, usually as aqua regia (which is a nitric and hydrochloric mixture), but nitric alone will do it. I don't think sulfuric acid will dissolve gold unless it's really concentrated.

I suspect sandblasting would work, too.

Bert Weiss
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Re: remove fired liquid bright gold

Postby Bert Weiss » Fri Oct 23, 2015 12:23 am

In the stained glass world, black patina is nitric acid. All I know is that this dissolves vitreous enamels. I would guess it works on gold.
Bert

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