Restoration of a historic Dunedin clock has involved the use
of modern materials, as those behind the project work to make
sure it survives into the future.
A clear epoxy resin has bridged the gaps left by more than
100 years of corrosion on the Port Chalmers Iona Church clock
face Work on the Historic Places Trust category 1-rated
Presbyterian church started last year after years of planning
and fundraising, and the clock face restoration is one of the
last parts of the project's first stage.
Building began on the church in 1871-72, and the clock was
installed about 1885.
The four cast-iron faces were removed for refurbishment -
each face is in two pieces - and those eight half-faces, each
weighing about 60kg, are at Zeal Steel in Dunedin.
Zeal Steel owner Lawrie Forbes said 32 minute graduations,
four ''V'' and three ''X' numerals needed the resin fix.
Wooden moulds were developed by Dunedin company Abrasive
Concepts to hold the resin in place while it dried.
The resin would be painted black, like the rest of the clock
''You'll never know,'' Mr Forbes said.
The use of the resin meant no drilling or welding on the
As well, it was ''reversible'', and could be removed in
future if better techniques became viable.
Mr Forbes said there were no instructions or manuals for such
a job, and methods had to be developed to suit requirements.
The face could not be sand blasted, because of concerns salt
built up over the years would be blasted further into the
The faces had been treated with a product to stop further
corrosion, as part of work that had taken about three months.
They would be finished in a week or so, before work started
on replacing stained glass.