If rubber-base paint has been used, the caustic soda treatment may not be effective and it may be necessary to use an organic solvent type of paint remover. Caution: - When using caustic soda or lye, avoid splashing eyes, skin, and clothing. Now let's proceed to analyzing the center of the composition. There is an optical center in the middle - you will notice that the center of the composition, the major element will never be placed there, otherwise the scene will look artificial. The center of the composition will always be the most striking element, and the rest will just serve to make it more expressive. The artist may use various means to achieve this effect - the color contrasts, light and shade effects, size of objects and distance between them. Secondary elements are depicted with less detail and vigor - they have to bring forward the center, not block it. Notice the way your eyes travel the painting - intuitively you will start at the center and will proceed to the rest of the elements to refine the story. 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.
Airless Tip: If you have somebody who can start masking off the trim, have them start on that while you convert the airless to a new color. When changing colors with an airless paint sprayer it is a good idea to have a second bucket filled half way with clean water. Place the intake hose in the clean water gently without getting the old color everywhere in the water. Take the tip out of the airless and spray all of the old paint out of the hose and back into its original paint bucket. Be careful when doing this that you recognize when the paint starts turning watery. When it does point the gun into the first bucket and spray until it looks pretty clean. It doesn't need to be perfectly clean. When it looks good, clean off the intake line in the clean bucket and get the old color off the intake line. Now place the intake line inside of your new trim paint. Proper rolling technique: When rolling paint on the wall, get the roller skin evenly loaded with paint and make a V,N or M pattern on the wall, this is to spread the paint across the entire section you will be rolling, then roll back across the section and even out the paint. To properly "lay off" each section, make a final pass of the section applying light pressure to the roller frame arm end of the roller skin and bringing the nap mark (mark created on the pressure applied side of roller skin) across from the beginning of the section to the end of the section, and just repeat all the way down the wall.The V,N or M pattern, will be determine by how far the paint will spread, a V is for less spreading paint and M is for farther spreading paints. Do not "dry roll", which means trying to roll to much of a section at once with very little paint on the roller. Just as important, do not apply to much, if you find you are applying to much, increase the size of the section you are painting i.e. from a V pattern to an N or a N pattern to a M. New Paints Give You Pro's Skill. Painting your house will be easier than ever - if you get the right paint. But it's going to be harder than ever to pick it. Malabar and Designers Guild offer some striking brights while the new Shades of Sanderson comprises 120 colours tailored to Sanderson's collections. If you are aiming for a more subtle backdrop that will flow through several rooms, it's wise to stick to neutral shades. Kevin McCloud's Elements of Colour for Fired Earth works especially well with our cool, northern light.