I totally concur. I have also had excellent results with this method, and I couldn't have said it any better myself. -----Original Message----- From: Billbrpt@AOL.COM <Billbrpt@AOL.COM> To: pianotech@ptg.org <pianotech@ptg.org> Date: Tuesday, October 31, 2000 8:42 PM Subject: Re: Help >In a message dated 10/31/00 9:53:50 PM Central Standard Time, >kam544@flash.net writes: > ><< You can dilute a pre-mixed bottle to much lesser strengths allowing you to > experiment on the safe side. Keep in mind, it's always a judgement call to > determine what strength to use, how much to apply, and where to apply it. > >> > >As with regulation, I almost never *measure* anything. Think of hammer >hardener the way you would finishing material. Two or more applications of a >very thin mix often works better than one thick, "gloppy" mix. I judge my >hardener strength by the way the white plastic colors the acetone. If you >can barely see any white color, you have an ultra-light mix. If it looks >like whole milk, it's very heavy. > >I usually use a light mix that looks about like whey or the way skim milk >would look if you cut it 50% with water. (Of course, I live in the Dairy >State and see these kinds of things). The usual recommendation I see of 1 >keytop to 8 oz. of acetone will be on the fairly heavy side. Better to cut >it. > >The truly successful hardening job occurs when you've only spent maybe 15-20 >minutes total time applying several coats of very light hardener as needed >(but have let it dry in between while doing other things). If you have >brought the soft hammers just up to where they sound good but don't need any >needling, you have used just the right concentrations. You can use a high >wattage hair dryer to speed things along if you need to but don't do that in >a vertical with the action in. You'll throw the piano way out of tune. > >Some of the voicing jobs I have received the highest compliments and praise >for changing the sound so radically but in a pleasing and satisfying way have >used very little of my time. > >Bill Bremmer RPT >Madison, Wisconsin >
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