[modeleng] Re: Broken tap and sulphuric acid

Erm..... preferably in a solution of alum and water, but if you must - use
NITRIC acid, and let me know when to duck.

----- Original Message -----
From: <kevin.osborn@xxxxxxxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Tuesday, October 23, 2007 8:24 PM
Subject: [modeleng] Broken tap and sulphuric acid


> I have broken the end of tap in a phosphor bronze casting, and I have
> heard a rumour that a couple of drop of sulphuric acid will dissolve the
> tap. Is this correct? And if so where can I buy / get a small quantity.
> I have been offered 25 litres, but cannot get anything smaller.
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