DOI Page / Citation link:
https://doi.org/10.11588/diglit.18732#0156
[ 13* ]
it ftSQ brighter, you muft melt white wax on the fire,
without fuffering it to boil, mix a little naphtha with
this, and draw a layer of it over the picture already
heated, by means of a brazier, which you hold under,
if the picture is fmall, or before it, if it is large. The
colours at firft appear fpoiled, but you reftore them to
their firft beauty, if, when the layer of wax is cooled,
you polifh it by rubbing with a cloth. It is then that
the colours take the high tone of oil. If you fear the
effects of fire for your picture, you are to make a foap
of wax, which is to be done by boiling white wax in
water, in which you have difTolved a twentieth part of
the weight of the wax of marine alkali, or fel de foudc
very pure. Rub your picture with this foap, and when
it is dry, polifh it as above. If you do not choofe either
of thefe methods, give your painting its ufual varnifh
of fandarac and fpirit of turpentine. This method
has been found preferable to all thofe that have been
tried, and fuperior to oil for the beauty of the colours.
There are many fine colours which cannot be ufed In
oil, which may be made ufe of with great fuccefs in
this method.
As the naphtha entirely evaporates, one may be af-
fured that this is the true method of painting in wax.
There is likewife much to hope for the duration of pic-
tures painted in this manner, as wax is much lefs liable
to alteration than oil, and does not fo eafily part with
its phlogifton."
This extract fuperfedes the infertion of the article
Jlncaustic, as it feems to be a more probable plan of
attaining-
it ftSQ brighter, you muft melt white wax on the fire,
without fuffering it to boil, mix a little naphtha with
this, and draw a layer of it over the picture already
heated, by means of a brazier, which you hold under,
if the picture is fmall, or before it, if it is large. The
colours at firft appear fpoiled, but you reftore them to
their firft beauty, if, when the layer of wax is cooled,
you polifh it by rubbing with a cloth. It is then that
the colours take the high tone of oil. If you fear the
effects of fire for your picture, you are to make a foap
of wax, which is to be done by boiling white wax in
water, in which you have difTolved a twentieth part of
the weight of the wax of marine alkali, or fel de foudc
very pure. Rub your picture with this foap, and when
it is dry, polifh it as above. If you do not choofe either
of thefe methods, give your painting its ufual varnifh
of fandarac and fpirit of turpentine. This method
has been found preferable to all thofe that have been
tried, and fuperior to oil for the beauty of the colours.
There are many fine colours which cannot be ufed In
oil, which may be made ufe of with great fuccefs in
this method.
As the naphtha entirely evaporates, one may be af-
fured that this is the true method of painting in wax.
There is likewife much to hope for the duration of pic-
tures painted in this manner, as wax is much lefs liable
to alteration than oil, and does not fo eafily part with
its phlogifton."
This extract fuperfedes the infertion of the article
Jlncaustic, as it feems to be a more probable plan of
attaining-