- 1). Mix 4 1/2 lbs. of hydrated lime with 2 gallons of water, in a large bucket. In a second bucket, mix 4 1/2 lbs. table salt with 2 1/2 gallons of water. You can mix these two solutions a few days prior to when you will need them. However, wait until you are ready to apply it to the windows before mixing them together.
- 2). Pour the excess water out of the bucket holding the first mixture. Pour a bit of the second mixture into the first bucket. Stir the two mixtures together. Continue adding the second mixture to the first mixture until you have a thick paste. If you make the mixture too thick, add a bit of water to thin it out.
- 3). Tape off the wall surrounding the window with painter's tape so you do not get whitewash on it. Make sure the edge of the tape is as tight against the window pane as possible to achieve a straight line when painting. You can paint either the inside or the outside of the window. If you are painting the inside, lay a painter's cloth on the floor under the window to protect it.
- 4). Dip a paintbrush into the whitewash mixture. Paint the whitewash onto the window panes using up and down strokes. Wait a few hours for this first coat to dry before applying a second coat of whitewash. The whitewash may look thin when you first apply it, but as it dries it will whiten more.
- 5). Wait for approximately 24 hours for the whitewash to dry. Cut along the edges of the window, where you applied the painter's tape, with a utility knife. This will prevent the whitewash from pulling off the window when you remove the tape. Peel the tape off from around the window.
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