Old Blue Paint 19C Pine – New York Milk Cupboard Found on liveauctioneers.com
A staple of the 19th century, milk paint produces a soft, flat finish that can add a patina of age even to new furniture. Lime, whiting (finely powdered calcium carbonate), and paint pigment are sold at paint stores and some home centers; litmus paper can be found at pharmacies. Make milk paint for immediate use. If you must store it for a day or two, refrigerate it. If you need to strip off milk paint, use household ammonia. On most furniture, put a coat of shellac on top to increase the milk paint’s longevity.
You Will Need 3 tablespoons white vinegar 4 cups milk 1 ounce slaked lime 2 to 2-1/2 lbs. dried pigment Litmus paper Whiting as desired
What to Do 1. Combine the vinegar and milk in an old pan and heat gently until the mixture curdles. Stir in the lime until well mixed.
2. Test the mixture with litmus paper: If the paper turns red, it is too acid — add more lime; if it turns dark blue, it is too alkaline — add more sour milk. Keep testing until the pH is balanced.
3. Stir in the whiting until you reach a paint-like consistency. Then slowly sprinkle in the pigment, stirring constantly, until the color is as desired. Makes 1 quart.