From: George Huczek (ghuczek@sk.sympatico.ca)
Date: 07/09/01-07:30:49 PM Z
At 04:55 PM 09/07/2001 +0000, you wrote:
>Katharine Thayer wrote:
>>
> You will probably need to treat this stain with a weak
>sulfuric acid to remove it.I don't remember what concentration Pete
>> Frederick recommends
>
>Nadeau suggests (with a caution about using strong acids) a
>concentration of .5% to 1% of either sulfuric or hydrochloric acid.
>kt
>
Thank you. I will try an acid wash at the end, after all of the layers of
pigment have been added.
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