At 15:44 -0300 20/4/10, John Ross wrote: >I had forgotten the name, hydrogen peroxide. >Most places just carry the 3%, but 30% is what is needed, with sunlight. Well I have always used 18% or 12% (60 vols or 40 vols) and it works fine and is cheap. I get the cream peroxide from a hairdressers' wholesaler and I think they've now discontinued the 18% cream, so when I run out I'll have to make do with 12%, but that's fine. There really is no need to buy bomb-strength peroxide unless you want to blow the piano up, which, admittedly, is a fairly frequent urge! Two four-foot UV strip-lights in parallel will just about straddle a keyboard. I keep them about 4 inches above the ivory. JD
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