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. Like this, it will actually take quite a while to reach a number that is close enough to the yellow color you've chosen that you can't tell any difference (and mathematically, you will never actually reach an average of 4!)
The term paint is used to include paints, varnishes, enamels, shellacs, lacquers, and stains. • Paints are composed of mineral pigments, organic vehicles, and a variety of thinners all combined. • Varnishes are resins dissolved in organic thinners. • Enamels are pigmented varnishes. • Shellac is lac gum dissolved in alcohol. • Lacquers may be both pigmented or clear - the liquid portion usually is treated nitrocellulose dissolve in thinners. • Stains may be pigmented oil or a penetrating type. Many of these materials, such as paints, varnishes, and lacquers, are formulated for specific purposes: • Outside house paints and exterior varnishes are intended to give good service when exposed to weathering • Interior wall paints are formulated to give excellent coverage and good wash-ability. • Floor enamels are made to withstand abrasion. • Lacquers are formulated for rapid drying. • There are also formulas which provide extra self-cleaning, fume- resisting, waterproofing, hardening, flexibility, mildew-resisting, resistance to fading, and breathing qualities. How warm does it have to be in order to paint your home? For most paints it typically has to be 37 degrees or warmer in order to paint the exterior of your house. Now if you are painting two coats of paint on your house and it is 55 degrees or cooler for the day, it is a good idea to paint the first coat one day and apply the second coat the day after. If you live in a really dry climate, like Denver, and your painting in the summer months, you can defiantly apply two coats in one day. However, the more humid climates in the south, it is still recommended to paint only one coat per day. The leading brands now flag up paints with lower VOCs and produce paints that are virtually odour-free - the Breatheasy range by Crown is one example. Most leading brands now produce high-quality water-based acrylic paints which outperform the older technologies of vinyl and oils. Complementary colors are opposites, and if you look at a color wheel, they are directly across from each other. While complementary colors may seem kind of mysterious to a novice, you just have to bring to mind Christmas to find a great example that is familiar to everyone, red and green.By simply making these colors a little paler, you can make this color palette work really well. Color tones are important, because rust and moss, while still being red and green, do not scream 'Christmas'. If your choice of tones is bold, you will create an eye popping design. However, it is common to get off course.