This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Hi Stephane, Where I work, we usually refelt the old moldings on very old pianos, say = between 1900 and 1930. It is often better to keep the old moldings because some manufacturers = used very specific moldings that are not being produced anymore (for = example, Erard grand moldings, or other french instruments). You cannot always find the proper shape of molding. For younger instruments (say, after 1950), we change the original hammer = heads with new Renner ones with Wurzen felt. About the underfelt, I asked Andre about this, and here is what he = answered: "Underfelt is a protection for the extreme crease or fold in = the outer felt layer during the pressing. If the molding is sharp, the = felt layer(s) will get damaged during the pressing. Underfelt also adds more mass to the hammer, so you don't need such a = thick outer felt layer. All in all, a hammer with underfelt is a more balanced hammer." that is a clear answer ! Bye, Quentin ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/76/93/b3/ee/attachment.htm ---------------------- multipart/alternative attachment--
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