[pianotech] English Overdamper piano pinblocks

[Al Guecia/Allied PianoCraft]

Do a test Dean. There is no way epoxy will adhere to cured CA as well as it does to wood.

Al -
High Point, NC






On Nov 5, 2012, at 8:47 AM, Dean May <deanmay at pianorebuilders.com> wrote:

I've seen CA applied to a very tight crack and near instantly run several
inches in either direction along the crack, showing the crack to extend past
where it was previously visible. I've never seen that kind of capillary
action happen with epoxy. West system is what I use. YMMV. 

Joe's trick of using the heat is sure to improve epoxy's flow performance.
But heat will also speed the cure time for epoxy. 

I would think a moderate amount of CA that mostly soaks into the wood would
not hinder the performance of epoxy.  

Dean
Dean W May                (812) 235-5272 voice and text 
PianoRebuilders.com    (888) DEAN-MAY        
Terre Haute IN 47802

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Ron Nossaman
Sent: Monday, November 05, 2012 7:29 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] English Overdamper piano pinblocks

On 11/5/2012 1:24 AM, Euphonious Thumpe wrote:
> Maybe we need to define the "epoxy" here. West's-type stuff, or the
> water-thin variety? (And where does one get the best water-thin variety,
> by the way, as was used on that bridge repair video I bought, to put
> around bridge pins with a hypo, to soak into and fill up tiny cracks?)

West system will penetrate into pretty much any crack you'll find. I say 
"pretty much" because if I said "any", with absolute certainty someone 
would come up with some pathological situation bearing no resemblance to 
the cracked pin block discussed as "proof" that it won't work in any 
situation at all.
Ron N


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