[pianotech] Trim & Moulding Glue

[David Love]

Chamfering the bore edge is a good idea and I do it even with the TB Trim
that I use.  I think probably the problems I see from loose hammers on jobs
I've run into with hide glue is a viscosity issue, too thin, at least
judging from the size, or lack of, of the collar where I see this happening.


I'll have to look into the Assembly 65 glue.  Had not heard of that.  

David Love
www.davidlovepianos.com


-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Ron Nossaman
Sent: Monday, December 10, 2012 5:37 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Trim & Moulding Glue

Most folks who have trouble with hot glue for hammers are either using 
too high a gram strength (Schaff) or scraping the glue off the shank 
with the sharp edge of their hammer bore. Putting a quick chamfer on the 
bore edge with a countersink (or whatever) funnels glue into the joint 
instead of scraping it off and makes a much more easily managed and 
secure assembly. I haven't had a loose hammer in over 30 years since I 
started doing this. Keeping hide glue the "right" viscosity is automatic 
for those who use it regularly, and a few seconds every hour or two to 
add a dash or water if necessary isn't too heavy a burden. Everything 
has it's own baggage/benefit ratio.

Like everything else - whatever works.


> I do like Bolduc's glue for soundboards and bridge caps.

Assembly 65, available from Mason&Hamlin, is a nice glue as well.
Ron N