This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Don't get shook. It should be a pretty easy fix. Your desk apparatus must have a different kind of finish on it. I wouldn't use the acetone anyway. Use a sharp chisel, knife or straight razor and scrape the glue off. If there is any mark left on the finish it should sand out pretty easy. Since it is satin it will be much easier than polish, but even if it was polish you can still sand out some pretty deep scratches. With your satin finish I would try 1000 grit wet/dry sandpaper. Use a little water (spit works) for lube. Use 600 or even 400 if you need to, but finish with 1000 and 4/0 steel wool. Make sure your strokes all go in the same direction. If the finish was polish the procedure would be the same but you would use polishing compound instead of the steel wool. It is possible to get sand marks out of a high polish finish by hand using successive grades of polishing compound and it's not too hard if you do a good job with the sandpaper. Of course a buffing wheel is easier but they are kind of messy in the customer's home. Dean Dean May cell 812.239.3359 PianoRebuilders.com 812.235.5272 Terre Haute IN 47802 -----Original Message----- From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Piannaman@aol.com Sent: Friday, July 29, 2005 9:27 PM To: pianotech@ptg.org Subject: Re: Howdya get CA off of polyester??? Listers, I bought a tube of acetone/super-glue remover at the local Ace hardware today in hopes that I could get this puppy taken care of. I took it over to a piano store and spooged some ZAP CA glue onto a like piece of piano now being used as a desk. I let it dry for awhile, then applied the remover. The results were unbecoming, to put it mildly. Don't try this at home, kids. It discolors and re-textures the finish. It may work on the shiny stuff, but not on the satin. I hope keyslips aren't too expensive. Dave Stahl In a message dated 7/29/05 2:30:27 PM Pacific Daylight Time, deanmay@pianorebuilders.com writes: Actually, steel wool will not get the scratch marks you need to make a polyester finish look satin. I think they start with 400/600 sanding all in one direction and then soften that with 1000 grit, again in the same direction. The finish is too hard for steel wool alone. Dean Dean May cell 812.239.3359 PianoRebuilders.com 812.235.5272 Terre Haute IN 47802 -----Original Message----- From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of John Ross Sent: Friday, July 29, 2005 11:50 AM To: Pianotech Subject: Re: Howdya get CA off of polyester??? To make a polyester finish satin, it appears that the finish is rubbed with a block that is covered in superfine steel wool, or a fine grit sand paper. This breaks up the shine with very fine scratches, that go in straight lines, not circular. There is one story I heard of a guy that had a satin finish Yamaha, and he polished it so much that it ended up with some sections high gloss and some not. They had neglected to tell him, his finish was satin, and he thought is should be shinier. John M. Ross Windsor, Nova Scotia, Canada jrpiano@win.eastlink.ca ----- Original Message ----- From: Farrell <mailto:mfarrel2@tampabay.rr.com> To: Pianotech <mailto:pianotech@ptg.org> Sent: Friday, July 29, 2005 12:11 PM Subject: Re: Howdya get CA off of polyester??? Oops, I missed that. Right you are. Thanks. But that begs another question: Is it not likely that either the finish is not polyester or that another finish has been applied over the poly? I don't know that I have ever seen a polyester finish in satin - seems it would just turn kinda white. Best be careful with this one.... Terry Farrell In this particular case it is a satin finish. I don't think he'll need the buffing wheel or polish. Dean Dean May cell 812.239.3359 PianoRebuilders.com 812.235.5272 Terre Haute IN 47802 CA can be dissolved with acetone. Acetone won't hurt polyester, particularly if its only in contact with the polyester for a short time. After you wash the CA off, just polish the polyester surface again with any of the polymer polishes. It will take the slight dulling off to come up just like new. But please make sure that the finish you are proposing to removing the CA from is indeed polyester. If its acid cat or any of the other lacquers, acetone will remove both the CA and the lacquer coating. Ron O. And then of course, have your buffing wheel available! Terry Farrell I have scraped it off with a razor or knife and then dressed the finish with a little 4/0 steel wool. You could even use some 600 sandpaper first and then the steel wool. Try an inconspicuous area first to see how it is going to look on the finish. But if you can hardly see it now probably hitting a couple of times with the steel wool will make it disappear. Dean Dean May I just finished tuning a satin walnut polyester piano that has a few loose pins. It's a couple of years old, and still under warranty, but I figured I try to CA a couple of pins anyway. Just to prove that performing that operation requires care and patience, I spilled a very small amount on the keyslip....:-([( At least it isn't laquer. I got most of it off before it had time to set, but as we all know, the stuff dries durned fast! So there are a couple of very small marks on the front. The finish doesn't appear to be damaged at all, and it's hardly visible, but I can see it. I'd like to do right by the customer and get it off if possible, but I didn't want to apply chemicals that might take the finish off in conjunction with the glue... If any of you have an idea about how to remove this stuff, please let me know! It's always on the fourth tuning of the day... Thanks in advance! Dave Stahl ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/33/8e/3f/4c/attachment.htm ---------------------- multipart/alternative attachment--
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