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MMD > Archives > February 1998 > 1998.02.01 > 08Prev  Next


Glue Edge Cuts the Pouches
By John A. Tuttle

Hi All,  In Karl Ellison's posting he says:

> When the glue to attach pouches to their boards or blocks is allowed
> to come to close to the edge of the pouch cavity, over which the
> leather must flex when it collapses, the dried glue can form almost
> a 'knife edge' which because of the 'slamming down' of the pouch
> when it is collapsed can ultimately begin to cut through the rather
> thin leather - and it weakens on those circular creases until it
> begins to separate.  Unless the edges of the pouch cavities are
> radiused, or the glue kept well back, this failure can happen even
> where the air quality is as sweet as in a woodland glen."

This is not new, but does show an extreme lack of understanding
with regards to correct rebuilding techniques on the part of the
rebuilder/s.  It is imperative that only a thin layer of glue is
applied by finger to the area to which the pouch is to be placed.
Secondly, a vacuum operated pouch tool should be employed so that the
correct 'dish' is imparted to the pouch BEFORE it is placed.  Too often
I have seen pouches that were dished AFTER the pouch was placed over
the pouch well.  This 'faster' method drags the glue into the flexing
portion of the pouch reducing it's 'working flexible area' and causes
the pouch to fail prematurely.

Musically,
John A. Tuttle (john@player-care.com)



Key Words in Subject:  Cuts, Edge, Glue, Pouches

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