This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Lucky Pierre! No, it's so that all the top layers of the block are = fully impregnated with the epoxy. This will restore the integrity of = the block. An even better but impractical procedure would be to put the block in a = vacuum chamber and slowly evacuate the air (it will bubble profusely) = drawing all the air out of all the nooks and crannys (what's a cranny?) = Then when the atmospheric pressure is restored the pressure will force = the epoxy into all those small crannys. Epoxy used for optical purposes must be "outgassed" in a vacum chamber = to make it suitable for use where any bubbles would be catastophic. = Vacuum impregnation is the process of completly sealing a substance. = Hey! Maybe we should inpregnate all soundboard wood. Oh! God! I don't = want to start another soundboard thread. Carl Meyer PTG assoc Santa Clara, Ca. ----- Original Message -----=20 From: Gevaert Pierre=20 To: Pianotech=20 Sent: Tuesday, February 22, 2005 2:26 PM Subject: Re: Glue pinblock plugs Hi, Thanks for the input. If I understand you fill the holes with epoxy completely to the top of = the pin block? I suppose this is for making the new holes easyer to = drill. As it is an open face pinblock in this case I suppose it is easyer to = fix than with a covered pinblock? Pierre Gevaert ----- Original Message -----=20 From: Carl Meyer=20 To: Pianotech=20 Sent: Monday, February 21, 2005 11:02 PM Subject: Re: Glue pinblock plugs I'd first seal the bottom of the block with wax paper, 1 inch foam = and a particle board panel. Use paste epoxy around the edges or it will = leak. Now warm the block (warm to the touch) to further encourage = capillary action. Fill all tuning pin holes with thin epoxy. Refill as = needed. Epotek 301 is the thinnest I've found, but there are others. = Let cure for about 2 days and drill for plugs. I'm not sure it matters = much what glue you use for the plugs. I've used titebond. You may need = to go to metric to get the best fit for the plugs, either 3/8 or 1/2. = Half inch may overlap making it a two step process. One time I drilled right thru the plate with a 3/8 drill and let the = plugs be level with the top of the plate. For cosmetics I used a = bushing cloth punching over the tuning pin. This piano already had the = plate installed and I didn't want to take it out again. I've done this = a few times and haven't had any problems. Carl Meyer PTG assoc Santa Clara, Ca. ----- Original Message -----=20 From: Gevaert Pierre=20 To: Pianotech=20 Sent: Monday, February 21, 2005 12:57 PM Subject: Glue pinblock plugs Hi list, I checked the Pianotech archives trying to find out what's the = best way to glue laminated pinblock plugs in a cracked pinblock but I = could'n't find out. Is epoxying the best way to fix these plugs ore are there better = glues? Thanks for some advice. Pierre ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/4d/f5/29/e1/attachment.htm ---------------------- multipart/alternative attachment--
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