Acetone/keytop is not good for densifying the felt overall. A drop or two is ok to sharpen the attack on the crown. I use lacquer. The solution will vary depending on the solids matter in the lacquer. I use 3:1, 4:1 and 5:1, depending on the section of the piano and how much densifying I need. I use a clear gloss, high solids nitrocellulose lacquer diluted with acetone. David Love ----- Original Message ----- From: "Matt Wynne" <rustraze@optonline.net> To: <pianotech@ptg.org> Sent: July 04, 2002 12:52 PM Subject: Hammer hardeners: a poll Hi all, While the subject of hammer voicing is being bandied about, I would like to know what people's favorite hammer hardeners are. I know that a lacquer based solution requires some time for the results to show whereas the acetone/keytop mixture works real quick. Any comments? -Matt
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