Thanks Del, For taking my post seriously! ( I've taken a beating on the Forum lately, as you may have noticed.) I was as surprised as you at this but, no, she definitely said "Teflon" and I asked again to make sure I wasn't hallucinating. She assured me this was the case! I have a customer deep in the "Non-woven" fabric industry ( surgical, etc..) so I just might give him a chunk of hammerfelt, describe some parameters and see what he thinks. I wonder if there's a "resiliency rating" for textile fibers? Some gadget which tests their ability to rebound from flexing, repeatedly? Gordon Stelter --- Delwin D Fandrich <pianobuilders@olynet.com> wrote: > > ----- Original Message ----- > From: "gordon stelter" <lclgcnp@yahoo.com> > To: "Pianotech" <pianotech@ptg.org> > Sent: September 22, 2002 1:39 PM > Subject: Re: Voicing > > > > Yes. I know this sounds odd. But Dave Stanwood's > wife, > > a felter, told me this and I therefore don't doubt > it. > > Maybe they had a lot of Teflon(TM) lying around, > and > > were looking for new uses. After all, this is how > > nitrocellulose lacquer came into being: as a means > of > > disposing with WWI surplus guncotten. I think > Steinway > > was also the first to use this lacquer for piano > > cases. > > I just wonder at the wisdom of experimenting > with > > Teflon for this, as Teflon sticks to almost > nothing, > > whereas any material used for felt substitution in > > hammers would need to stick rather well to itself, > and > > a hammermolding.( If there was one. ) > > Gordon Stelter > > > > I can think of a number of materials and fibers it > would be interesting to > experiment with, but for hammermaking Teflon would > surely be close to the > bottom of the list. It readily cold-flows, it's not > at all resistant to > impact stress, it's not at all resilient, it's > not--well, you get the idea. > In fact, I can't think of any particular > characteristic Teflon has that > would make it suitable or desirable for hammer. > > Personally, I would try working with one of the > various types of > polyurethane. Having myself made some interesting > sounding hammers out of > this material I wonder if this is not more like what > they were up to. That, > or something like one of the wool/Kevlar blends. > > Del > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives __________________________________________________ Do you Yahoo!? New DSL Internet Access from SBC & Yahoo! http://sbc.yahoo.com
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