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May 1999

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From:
Roger M Unwin <[log in to unmask]>
Date:
Wed, 26 May 1999 17:58:29 +0100
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"\"TechNet E-Mail Forum.\" <[log in to unmask]>, Roger M Unwin" <[log in to unmask]>
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In article <[log in to unmask]>, <Joseph M.
Webb> <[log in to unmask]> writes
>I was hoping one of you fine denizens of TechNet could assist me by
>providing a generic formula for a room temperature (antiquing?) oxide
>solution for copper. I recall seeing one a few years back in the Metal
>Finishers Handbook, but I can not find a copy about for the life of me.
>
Do you mean Antique Patina,
120g  Ammonium Sulphate
4g    Copper Sulphate
1.6ml Ammonia(0.880)
+     water to 1 litre.
Spray on cold. According to my 1971 Finishing Handbook.

--
Roger M Unwin
P+M Services (R) Ltd. Tel: 01706 815212  Fax: 01706 818636
Http://www.p-m-services.demon.co.uk

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