Still more than the 3%, which is readily available. I also suggested the hairdresser stuff, but didn't know it;s strength. Are you suggesting that the 30% wouldn't work? I don't consider it's extra strength as being detrimental, or am I wrong? John Ross Windsor, Nova Scotia On 2010-11-01, at 12:46 PM, John Delacour wrote: > At 12:00 -0300 01/11/2010, John Ross wrote: > >> The bleaching process will require 30% peroxide, not the normal 3% that is in the drugstore. (not exact numbers) >> I believe that hairdressers have a bleach that will do the job. >> Sunlight with the peroxide are used. > > As I have said on several occasions before it is absolutely NOT necessary to use bomb-quality peroxide. 12%/40 vol, which is the standard hairdresser volume or 18%/60 vol will both work fine and are what I have used on thousands of ivories over many years. Perhaps you are confusing vols with percentages. > > JD > > -- > ______________________________________________________________________ > Delacour Pianos * Silo * Deverel Farm * Milborne St. Andrew > Dorset DT11 0HX * England > Phone: +44 1202 731 031 > Mobile: +44 7801 310 689 > ______________________________________________________________________ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20101101/79859e75/attachment.htm>
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