There is, however, a certain prejudice against lime-whiting amongst both owners and occupiers, owing to the frequent renewal that its adoption usually implies.
With a view to removing this drawback from a treatment otherwise so effective, the following recipes are suggested as improvements on the usual practice.
Ordinary whitewash is made by slaking about 10 lbs. of quicklime with two gallons of water.
The following recipes are taken from “White Paints and Painting” (Scott), and are reliable:
(1) “Factory” Whitewash (interiors), for Walls, Ceilings, Posts, etc.:
(a) 62 lbs. (1 bushel) quicklime, slake with 15 gallons water. Keep barrel covered till steam ceases to arise. Stir occasionally to prevent scorching.
(b) 2½ lbs. rye-flour, beat up in ½ gallon of cold water, then add 2 gallons boiling water.
(c) 2½ lbs. of common rock-salt, dissolve in 2½ gallons of hot water.
Mix (b) and (c), then pour into (a), and stir until all is well mixed. This is the whitewash used in the large implement factories, and recommended by the insurance companies. The above formula gives a product of perfect brush consistency.
(2) “Weatherproof” Whitewash (exteriors), for Buildings, Fences, etc.: