Masonry Walls and Ceilings. Interior masonry walls and ceilings above grade may, in general, be painted in much the same manner as plaster surfaces. Here again, it is necessary to allow adequate time for the masonry to dry before applying paint and, in addition, attention should be given to the preparation of the surface. When decorating a wall containing Portland cement (concrete, for example), it is essential to take precautions against the attack of alkali. For this purpose, alkali-resistant primers such as rubber-base paints may be used when oil paints are to follow.
Rubber-base paints, which dry to a hard semi-gloss finish, may be used on concrete floors below grade, providing the floor is not continually damp from seepage and condensation.
Paint should not be applied to a concrete basement floor until the concrete has aged for at least a year. The floor should be dry when painted, the best time for application being during the winter or early spring (assuming there is some heating apparatus in the basement), when the humidity in the basement is low. In general, three coats of paint are required on an unpainted floor, and the first coat should be thin to secure good penetration. After the paint is dry, it should be protected with a coat of floor wax.
Years ago, paint was paint. One kind looked, smelled, was applied and eventually dried much like another. Things are different now. Besides oil paints, you can choose from a new set of paints. It'll pay you to know about them. • There are water paints you can use outside. (You clean your brushes under the faucet and use the garden hose to get spatters off the shrubbery.) • There are finishes so tough they withstand even attacks from the neighbors' children. • There are paints that dry so fast you start the second coat as soon as you finish putting on the first. • There are colors in glittering confusion.
Matt - Describes paints that give a flat, non-reflective finish. It is ideal for walls and ceilings that are not perfectly smooth.
Once the drywall compound/spackle has had sufficient time to dry, you will need to lightly sand the surface of the repair to smooth out any ridges that may have been caused while "coating" the patch. Once you have the surface sanded smooth, take a wet sponge or cloth and, by lightly washing/rubbing, blend the outside edge of the drywall compound/spackle back into the wall. For a smaller repair, you can wash away the excess drywall compound, leaving only the compound/spackle only in the area where the indent was filled. For a larger hole, after filling, sanding and using a wet sponge to blend the outside edge of the compound back into the wall, it may be necessary to texture the area in order to give the smooth patch the appearance of the existing wall.
INTERIOR PAINTING. If you want to alter your room's ambience, painting it is a great option. When interior painting, use paints that are quicker to dry and does not have a strong odor that lingers around where your kids can smell it.