Characteristics of Spirit Stains

A number of years ago a few firms put lines of spiritSome of the best liquid stains on the market today
stains on the market. These were manufacturedare really a combination of volatile oil and spirit stains
from various colors that are soluble in alcohol. At theand wood finishers are having satisfactory results
present time the colors or dyes which are used arewith them even though they are rather expensive on
almost entirely spirit soluble basic coal tar dyes.account of the high cost of the solvents. Water is
Spirit stains dry very, very quickly, and do notalso sometimes used as a thinner for spirit stains,
penetrate deeply into the wood. Pure spirit stains dryreducing the rapidity of drying to some extent.
with such great rapidity that it is difficult to applyYou cannot leave spirit stains in open vats because
them evenly. Laps, streaks, and brush marks areof the rapid rate of evaporation, which increases the
likely to disfigure any large surface stained with spiritrisk of fire. Such stains should be kept in tightly
stain. The trouble is due entirely to the rapidclosed glass bottles, if possible. The method of
evaporation of the alcohol which is used as theapplication for spirit stains is to apply them with a
solvent for the colors.brush and them to wipe and spread the excess in
These stains are more expensive than water stains,order to achieve more even tones and brilliance. You
because the solvent alcohol, costs much more thancan obtain the best results in one of two ways:
water. They are sometimes used for quick work,1. By working rapidly with a brush loaded with color,
especially for touching up spots and streaks, and inrather than with an almost dry brash; and
making repairs or renewing old finishes. The expert2. By evening up, by wiping before the stain has set
can occasionally use them to advantage, but theor dried.
beginner always has trouble with them.A word of caution about using spirit stains is
Another difficulty with spirit stains is that they maynecessary - they do fade. Spirit-stains made from
"lift" with the filler-coat, or with the application ofaniline or other coal-tar dyes arc considered by many
shellac, which is a spirit varnish cut with alcohol. Suchexperts to be the most fugitive of all stains, although
stains are liable to mix with the shellac under thethey are much more permanent than they were a
brush without any sort of mixing or measuring tools (few years ago. Their tendency to fade, and difficulty
and produce a muddy effect which spoils thein application, has caused them to be used much less
transparency and beauty of the finish.than either water or oil stains. Compare the difficulty
You can also purchase mixed spirit stains and volatilelevel of using a simple tool, such as a tape measure
oils. Some manufacturers of spirit stains haveto using a cumbersome saw to get an idea of the
changed their formulas and do not use alcoholdifference.
exclusively as a solvent. Turpentine and benzol areThe spirit stains are made from basic coal-tar dyes,
sometimes used as solvents or thinners in addition towhich the manufacturers know to be fugitive. Where
alcohol, and these oils slow down the rapidity ofa temporary brilliant effect is desired, and fastness to
drying of the spirit-stain. Benzol also causes the stainlight is not a requisite, such stains may be used to
to penetrate more deeply than if alcohol alone isadvantage.
used.Whenever spirit stains are used on articles of
These stains can be thinned with either alcohol orfurniture the fresh colors should not be exposed to
turpentine, but turpentine is preferable when itbright light until after coats of shellac and varnish
comes to stains and supplies and a sort of ruler ( ofhave been applied. Such impervious finishes keep out
stains because of its slower rate of evaporation.the air and prevent fading to a large extent.