[pianotech] Blocks

[David Love]

Mark:

How are they sealed exactly and what is their composite?

David Love
www.davidlovepianos.com


-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Mark S Burgett
Sent: Tuesday, October 23, 2012 9:58 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] Blocks

Mason & Hamlin blocks are sealed at the factory and are available through
WNG.



Mark

________________________________
From: pianotech-bounces at ptg.org [pianotech-bounces at ptg.org] on behalf of
Euphonious Thumpe [lclgcnp at yahoo.com]
Sent: Tuesday, October 23, 2012 7:45 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] Blocks

So, here again, is my "gauche" suggestion for protecting grand blocks from
humidity: get a roll of thick metal foil tape from a proper HVAC supply
store (not the cheapo-stuff sold by Lowe's, Home Depot and etc.) and put it
on the block underside. (Maybe a good idea to shellac the block, too: on all
sides.)

Thumpe


________________________________
From: Ed Foote <a440a at aol.com>;
To: <pianotech at ptg.org>;
Subject: Re: [pianotech] Blocks
Sent: Tue, Oct 23, 2012 9:19:01 PM

Ron writes:
>> ,It's not how many times a year you look, it's how many seasonal
extremes they've been through. I don't understand why the concept of wood
under compression crushing cumulatively with big humidity cycles is such a
tough concept.<

          It is a simple concept. I am of the opinion that it isn't a
problem on the blocks I have direct experience with.  Some of these pianos I
am talking about got their blocks in the early 1980's. If I don't see any
appreciable lateral movement of the pin through the block after 30 years, I
am not going to let that be a determining factor in my technique.
Ed Foote RPT