Stan, Good post...well written! Joy! Elwood Elwood Doss, Jr., RPT Piano Technician/Technical Director Department of Music 145 Fine Arts Building University of Tennessee at Martin Martin, TN 38238 731-881-1852 ----- Original Message ----- From: "Stan Kroeker" <stan@pianoexperts.mb.ca> To: "College and University Technicians" <caut@ptg.org> Sent: Tuesday, April 12, 2005 9:37 PM Subject: Re: [CAUT] PVC-E glue > Ladies and gents, > > Have retopped many dozens of sets of keys over the years and consider > suitable only two types of adhesive: latex contact cement (available at > most building centers) and PVC-E (available from our esteemed piano > parts suppliers). Both of these adhesives form a slightly rubbery bond > between dissimilar materials (wood and plastic). Although the latex > contact cement works well and has great merit, my favorite is the PVC-E. > > Apply grit and clamp them if you must, but it really isn't necessary. > Yes, there is some momentary slipperiness but a few seconds of finger > pressure is all that is required. Gently wipe the squeeze-out with your > fingers and transfer to a dampened rag (helps to have the key in a vice > or simply spring-clamped to the workbench). Confirm proper alignment, > set the key aside and move on to the next. > > Entire gluing procedure takes less than an hour with only eight fingers, > two thumbs, one glue brush and a gluey dampened rag to rinse. The bond > cures sufficiently for trimming (you are using Bill Spurlock's router > jig, are you?) within 2 hours and any remaining squeeze-out can be > rubbed off with your thumb (or yet another dampened rag). > > If you need proof of the firmness of bond, present a sample key to your > 4 year old nephew (or niece) and challenge him/her to remove the top. > This 'acid test' will convince you that the keys are now worthy of the > rigors of the concert stage and the fingers of Dickran Atamian. > > Best regards from the soggy Canadian prairie, > > Stan Kroeker, RPT > > Cy Shuster wrote: > > I heard a good workaround for this problem: use a razorblade to scrape a > > little grit from a piece of sandpaper onto the wet glue before applying > > the keytop. A dozen grains will do the trick. > > > > --Cy Shuster-- > > Bluefield, WV > > > > ----- Original Message ----- From: "Ken Zahringer" <ZahringerK@missouri.edu> > > To: "College and University Technicians" <caut@ptg.org> > > Sent: Tuesday, April 12, 2005 12:16 PM > > Subject: Re: [CAUT] PVC-E glue > > > > > >> The only problem I have experienced is perhaps too much "wiggle room". > >> If you apply too much glue, the keytop can slide around a fair bit when > >> you clamp it. > > > > > > > > _______________________________________________ > > caut list info: https://www.moypiano.com/resources/#archives > > > > > _______________________________________________ > caut list info: https://www.moypiano.com/resources/#archives
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