Why not just put a pinblock inlay in the effected area with Terry's ever famous WSE. The epoxy should block the silicon migration.
Al
From: Dave Davis
Sent: Thursday, February 26, 2009 8:37 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] Weber Upright Pinblock
I started to suggest plugs, but thought the silicone might creep into the plugs. A good epoxy/glue seal might seal the silicone out, though.
Didn't someone do a non-scientific glue adhesion to silicon-infected wood a couple of months ago during the VSP discussion?
Best regards,
Dave Davis
Davis Piano Service
425-226-0102
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From: "Farrell"
Date: Thu, 26 Feb 2009 19:59:11 -0500
To: <pianotech at ptg.org>
Subject: Re: [pianotech] Weber Upright Pinblock
"The only real cure is to remove the silicone, which would require removing the pinblock."
Or, if the rest of the block seems good, maybe plugs in the affected areas.
Terry Farrell
----- Original Message -----
I ran across this phenomenon a few years ago. Phil Glenn, formerly with Young Chang, told me that in the late 80's the drill bits YC used to pre-drill for the pressure bar screws were changed to a slightly smaller size. They later discovered that the guy putting the screws in put silicone on the screws so he could drive them into the smaller hole. Consequently the silicone creeped up the pinblock and typically the bottom row of holes of those pianos would become loose.
CA probably has the best chance of extending the tuning life of the Young Chang-built Weber. Replacing the tuning pins or driving them deeper won't help. The only real cure is to remove the silicone, which would require removing the pinblock.
Best regards,
Dave Davis, RPT
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