Steinway has their finishes and "hammer juice" manufactured by Wurdack Industries in St. Louis, Missouri. I was looking for "Steinway Gold" for the plate and happened upon this company. I also obtained the black lacquer Steinway used for their ebony finished pianos. And, yes it is different from other black lacquers, or so I'm told. When talking with the people at Wurdack, it is a small family owned/operated company, I was asked if I wanted some "hammer juice". It comes in one gallon cans and my guess is that it is pre-diluted and ready to go right out of the can. I have yet to open the can since I have no new hammers and with the state budget the way it is I probably won't for some time. Anyway, Wurdack also custom makes finishes and that leads to this point. They make the stuff for Steinway and keep some on hand for small orders for refinishers, etc. So they may be out or have a limited supply and you might have to wait a few weeks for your order. Their website is www.wurdack.com. Walter Wurdack Inc. | 4977 Fyler Ave. St. Louis, MO 63139, phone is 314.351.6600 | FAX 314.351.5617 | info at wurdack.com Henry Nicolaides Piano Technician, School of Music Southern Illinois University Carbondale, Illinois 62901 > From: fssturm at unm.edu > To: caut at ptg.org > Date: Thu, 18 Feb 2010 15:56:25 -0700 > Subject: Re: [CAUT] Hammer-Lac > > > On Feb 18, 2010, at 3:14 PM, David Ilvedson wrote: > > > 8:1 solution? > > > > David Ilvedson, RPT > > Pacifica, CA 94044 > > > With reference to what? What Steinway uses to dip a whole set? That > solution is something on the order of 3-4% solids, which is 3:1 of > what they had been using before to finish pianos, but then became 6:1 > or so when they changed suppliers. That's what I am remembering. > The problem is that ratios mean nothing unless you know the > concentration of the original, and that may vary a lot. Which is one > reason we tend to talk at cross purposes about the use of lacquer. I > remember being told very specifically by Ron Coners that what they > used was 3:1, and being rather shocked that they would use such a > strong solution. What he meant was 3 parts thinner, 1 part lacquer, so > another way you could express it is 25% solution (which some people > might express as 4:1, or maybe as one in four). > It turned out (I learned a couple years later) that they went to the > finish room and dipped some out of the supply there. And that lacquer > had probably been pre-thinned. Eric Schandall finally clarified that > what they started with was about 12% solids (if my memory serves), I > think by weight, if that makes an appreciable difference. And then > maybe five years ago something changed in the finish room (maybe a > different supplier), and they went dipping and found the results were > "a wee bit strong," and they discovered the concentration had changed. > Or so I remember hearing. > My lacquer off the shelf is in the 20%+ range for solids content. So > about 6:1 mix of that gives 3-4% solids. > Maybe someone else has more precise information. Memory does blur a > bit over the years. > Regards, > Fred Sturm > University of New Mexico > fssturm at unm.edu > > > > > _________________________________________________________________ Hotmail: Trusted email with Microsoft’s powerful SPAM protection. http://clk.atdmt.com/GBL/go/201469226/direct/01/ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/caut.php/attachments/20100218/6bbe581a/attachment-0001.htm>
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