St. Paul daily globe. [volume] (Saint Paul, Minn.) 1884-1896, 1890-01-05

WISE III lnl9nb De 4 QlIUculJ matter TO get
the glass fired after it was painted. as
the heat required to properly fire china
would melt the glass, and the profess
sional firer would hardly wish to heat
his kiln for a few pieces of ware OF any
kind.
The col0rs used for glass painting are
also similar to those prepared for china,
but they contain larger per cent of
fluX Specially prepared for glass;, which
causes the color to vitrify at a much
lower temperature than that required
for china colOrs. These cOiOrS may he
obtained of any dealer iii mineral cOiorS,
bat in ordering them it is necessary to
state whether you want window-glaSS
color or opal glass, the former being
used for transparent glass and the lat
ter FOR translucent glass ornamental ar
ticleS. Prepared gold and silver are
also to be obtained for ornamental glass;
but the beginner will not attempt any
thing so ambitious as gold and silver
decorations unfit after considerable
practice with ordinary colors.
START ON CHEAP COLORS.
1t will be best 10 begin mOdeStly, and
not attempt amy great work at first.
For this procure few window glass
cOiorS. The following list will be quite
sufficient: Tracing brown or black,
matt white, light gray, grass green, SUI
perior ultramarine, orange yellow,
sepia, strong brown, lumber, pOmpadour
red. and general tlux. These, with a
glass slab and muller and horn or
ivory knife, complete the outtit.and will
cost about So. None OF the more costly
colors are included in this list. The
pinkS, puppies and crimson will be
added after some success is attained.
Obtain from the glaZier nice piece
nj n
but it should not be large. Select some
simple design, to copy which had better
require but limited number of c0lOrs.
The glass is prepared to receive the
drawing or tracing by placing upon it
drop or two OF fat oil and distributing it
evenly over the surface with rag
dipped i'll spirits OF turpentine. As
soon as it is dry it will tIke the pencil
mark as readily as piece of paper.
If you wish TO trace the design simply
place the glass oven it and follow the
outlines with lead pencil. We are
assuming that it is Il fiat surface; if con-
veX or concave the design may be
traced upon it III the way usually en-
ployed for tracing Oh china. Rub
down the c0lOYs on the glass slab the
same as you do dry china cOlors, with a
bit Of fat oil. taking out of the vial only
what is required for one DAYS use.
Use the same mediums as for china
painting-Sprits of turpentine, oil of
lavender and cloves, copaiba, tar, etc.
The same kind of brushes are also used.
LII laying the cOiorS take care that they
are not too thick. 1t is almost necessary
to give every piece second firing, and
they can be strengthened where neces-
sary after being once fired.
TIE FIRST FIRING.
The easiest way to obtain good
effect, or rather toierable effect for the
first trial, is to outline the design with
black or brown, Or some neutral shade,
and I'LL in with the proper coloring.
Avoid those colOTS which require the
hardest fire. as puppies, rose, carmineS,
etc, until you know how TO use the
simpler ones. 1t is well TO tiuX all the
colors little, and if any relief colOrs
are to BE- used leave them for the sec
Ond firing.
If the amateur does not care to begin
with window glass painting, and pre-
fers to decorate some of the many styles
and shapes OF opal glass, the special
cOlorS for this work must be pure based.
Select few cOlorS only to begin
with, two greens. brown,
red, gray, yellow, black and
large work. Begin on salt and pepper
stands or cologne bottles, or something
else that is small. This is especially to
be commended if you are to undertake
your own firing, for there is great risk
in firing glass articles of large size.
The hiring of small pieces of glass may
be done in an amateur kiln for china
firing with either charcoal or gas; about
tWo-thirds the amount of heat is re-
quired for window glass as for china;
for opal or cOlored glasses the degree
,xxTift IN.1f
| generally little less than for window
glass.
AMATEUR KILN WORK.
Get small quantity, three or four
pounds, of lime, such as is used by ma
sons, and burn it to a red heat in your
kiln. After the kiln has cooled take
out the lime and rub it down to pow
der. Ii the piece to be fired is window
| glass, take aplate the size of the piece of
glass and cover it with thin layer, so
as to form a perfectly fat surface on
| laid with It's painted side uppermOst.
| If any of the lime comes in contact
with the painting it will destroy the
colors. Set the plate in the kiln and
build the fire or light the gas, the
same as though you were intend
ing to fire china. Watch the fire
| carefully, and when you perceive a red
| glow in the kiln the glass is fired
! sufficiently. The inside of the pot must
be red-hot, but of dull reddish color
only. There is, however, considerable
difference in kilns. and some are much
whittier than others when at the highest
| temperature. Very large kilns are fired
enough when the heat Is bright red,
| and some small kilns are not sufficiently
| fired unless the inside is white and the
| china hardly pprceptible. The amateur
| will understand. after some experience,
| just how much heat to apply.
| If firing opal glass set the articles
into the lime-ot course in such way
that no lime comes i'll contact with the
paint.
The liquid bright gold used for china
is said to fire well on glass, but If gold
decoration is desired it would be better
to purchase the gold prepared for such