
          770

Proportions, & method of mixing and putting on
the washes for buildings -

1[illegible] White free stone for Stone brick or wood
Take well burnt stone lime sufficient to make five gallons
of what the plasterers call Flab, say 6 quarts; Make the
same to a proper consistence for washing, by a sufficient
quantity of boiling water, in which put one pound of clean
salt, and one quarter of <s>illegible</s> a pound of Allum, dissolved in
hot water; with this Salt and Allum water mix your
Flab (not very thick) into this flab put half a pound
of clear glue dissolved in one quart of hot water. With
the same flab wash the buildings thoroughly over.
As soon as this is dry dissolve half a pound of
Allum pulverized in one quart of hot water
and half a pound of glue dissolved in as much
more.  The allum and glue must be well
mixed and stirred with other five gallons of
Flab for the second wash.  This will imitate
white free stone, and will last for six
years; Another Coat will renew the colour
more than six years longer. For a cream
color a quarter of a pound of yellow Ochre
will answer the purpose, which by increasing or
diminishing will regulate the shade, first trying
it on a board to ascertain the shade. The first
coat should be used in a boiling state nearly - the
second with a less degree of heat, and both in dry
weather in an iron kettle and put into pails for use.
The cohesive quality of the wash will give wood a
greater durability.  The flab while rising must be
frequently stirred to preserve unity of colour,
and to keep the glue from congealing.
        