What colors are prevailing - tonal or local, warm or cold?
Plaster. New dry plaster in good condition, which is to be finished with a paint other than water paint, should be given a coat of primer-sealer and allowed to dry thoroughly before being inspected for uniformity of appearance. Variations in gloss and color differences in the case of tinted primers indicate whether or not the whole surface has been completely sealed. If not, a second coat of primer-sealer should be applied. If only a few "suction spots" are apparent, a second coat over these areas may be sufficient.
The salt and alum should be dis-solved in 4 gallons of hot water, after which the molasses may be added to the mixture. The resulting clear solution is then added to the lime paste, stirred vigorously, and thinned with water to the desired consistency. This whitewash has a yellow tinge when first applied, but the color disappears in a few days leaving a white film.
How Much Paint You Really Need. How much paint you will need to satisfactorily complete a paint project is determined by 2 factors. The first, paint coverage, is a familiar concept to most people. It simply concerns the square footage of surface area to be painted, and "paint coverage calculators" abound on the web. However, the second concept, paint color coverage, has a much more pronounced effect on how much paint will be needed and the cost of paint projects. Unfortunately, paint color coverage is a novel concept to many painters and, in fact, is poorly understood even by many professionals. Knowing the secrets of paint color coverage will allow you to reduce the number coats you have to apply and minimize how much paint you have to buy.
When you plan with split complementary colors, you begin with a single reference color. Next, choose a color from either edge of the complementary color and use it. While the complementary color scheme is a little more obvious, this scheme can fail totally if you just use paler versions of your warm colors. By the same token, picking a a warm undertone for the main contrasting color and combining it with two cool tones will showcase the warm tone.
The area covered by a gallon of whitewash depends upon the nature of the surface, but ordinarily a gallon will cover about 225 sq. ft. on wood, about 180 sq. ft. on brick, and about 270 sq. ft. on plaster. The formulas mentioned will make from 10 to 14 gallons of whitewash. If a smaller quantity is desired, the amount of each ingredient should be reduced proportionately.
But before doing this, you have to know the condition of the surface you wanted to paint. Regardless of whether the base coat is oil or latex, you must dull glossy paint by sanding or de-glossing it with a chemical de-glossing product. If you don't dull glossy paint, the second coat will streak and not stick to the base coat when drying.