Objective
The object of plating is to modify the
original colour, either by changing the tone or the intensity. This
will, for example, darken a piece of glass where it would otherwise
be to bright; or it will modify the colour to better blend with the
surrounding pieces.
A further use of plating is in
conservation, where the additional detail is placed on a separate
piece of glass and placed in front or back of the original.
Leads
In leading, you normally use high heart
lead. This is lead with a heart of 7mm or 10mm instead of the usual
5mm. Other heights are available, of course. The 7mm heart will
accommodate two 3mm pieces, but if you are using thick hand made
glass, you may require the 10mm high heart.
Comparing the Arrangement
Try the glass combination with each
piece on top. Often there is a difference in tone or texture.
Choose the one that suits your composition best.
Cleaning
Before finally fixing the glass
together, make sure they are very clean as there will be no
opportunity to clean the inside again. Try to avoid finger prints on
the insides while you do further work with the glass.
Sealing
Make sure the glass fits the cartoon
lines. You will be sealing the two pieces of glass together, so there
is no opportunity to change the shape later. There are a variety of
traditional methods of sealing the glass, but the easiest modern
approach is to copper foil the edges to ensure that no cement creeps
between the pieces.
Fitting
You then fit the glass into the came
as for thiner pieces. Where you have a combination of heart heights,
you can simply slip the ends of the lower heart cames inside the leaves of the high
heart leads. The differences in height are small enough that no
special support is needed for the thinner glass unless you feel better with the single layers of glass supported above the work surface.
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