Wim wrote Cleaning rust off the strings is fine, for cosmetic purposes. But the main problem with rust on the strings is at the pressure points and the strings, like at the agraffs, the capo bars, the tuning pins, bridge pins, etc. That is where the string breaks. So cleaning the pins and strings is nice, but it won't prevent the string from breaking. Wim Clearly, I can't do much about rusty strings when I find them except to try to stop the rust from continuing. In most cases, I have caught it before strings begin to break. The best I can do then is to arrest the rust so it does not progress to the point of breakage, or at least not as quickly. Besides the obvious cosmetic effect, stopping the rust from progressing is beneficial. Converting the rust to iron tannin and cleaning the strings with a rust inhibiting oil pretty much stops the progression of the rust. So I think it is worth it. It makes the tuning pins look nice too. For more rust control-see attached photo of Zerust. In many cases, I also put a Zerust capsule in the piano that is guaranteed by the company to arrest further rust for two years in a closed space of 30 cubic feet.. You should get some of these where you live. It releases an odorless gas from a foam block in a plastic housing.The capsules are pretty cheap insurance( under $10 from Amazon). Ihave put quite a few in pianos for clients who are living on or very near the water where the salt air really penetrates into the house. I can say that I have not had any further string breakages in those pianos. However, the numbers are still a bit small to be statistically significant. Doug Gregg Classic piano Doc -------------- next part -------------- A non-text attachment was scrubbed... Name: products006.jpg Type: image/jpeg Size: 113213 bytes Desc: not available URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20120202/aff718e2/attachment-0001.jpg>
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