I have been following this thread with some mounting concern with the
approach of trying to do an 'invisible' repair.
All the adhesive approaches would have some problems due to the various
incompatibilities already discussed.
Have you considered making a visible repair by pinning the two pieces
together using bronze or something similar ? I am thinking of the old
method used for repairing china which used metal clips - thus the
repair was clearly visible. The repair then becomes a part of the
visible history of the object, and is perhaps more clearly understood
if further work is required in the future.
The suggestion by John Carmichael to split the piece apart while
radical/exciting etc may be the best way to go - then pin do not glue.
In my former life as a lecturer in architecture I saw far to many
examples of buildings 'glued' together - the day is coming when all the
glue will eventually get tired and give up ;-))
Object - a vertial south sundial of 1700, in a sandstone type of
material.
It is 24 inches square. with carved numerials and hour lines.
Went tapped, an area about 12 inches diameter sounds hollow where a
thin
surface area is detached from the backing of the 1.5 inch thich dial.
Does anyone know how to secure this loose area to the sound stonework
behind ?.
I quesstimate this loose area is about one eighth of an inch thick.
Perhaps maybe drilling a tiny hole, and injecting some bonding agent.
It is planned to do this work next year in warm weather.
Your help much appreciated. David.
Best regards and good luck
John Hall
Launceston
Tasmania
Australia
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