Paste and powder paints should be mixed in quantities sufficient for immediate use only, as these materials often become unfit for application if allowed to stand for three or more hours.
A good interior paint job is often 50% preparation and 50% painting. Do not rush in preparing the surfaces in your eagerness to get at the brush or roller. If you do not prepare the surfaces properly, you'll be back with the paint brush or roller in a few months.
Matt - Describes paints that give a flat, non-reflective finish. It is ideal for walls and ceilings that are not perfectly smooth.
And, its never been more important to know your colors. Why? Because color is back in a big way! Just look at the vast variety of colors in the department stores.
What are the major color fields in the painting and their role in the entire composition? Is the light optically realistic or expressive as in Matisse's painting?
Intensity refers to a colors brightness or saturation. Intensity refers to how pure a color is. For instance, if you were to use cadmium red straight from the tube, it would have a high intensity. If you were to mix it with another color however, its intensity would be diminished.
On the other hand, in some cases there are legitimate reasons for one area to be bad even if the rest of the paint is solid. If poor body work or rust repair was done in the past then maybe just that section of paint will need to be removed.