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. Painting trim is normally done by roller and brush, not sprayed, so more manual labor is required painting trim, and most cases costing 60% of the total exterior painting job. Fine motor: Beginning to learn to use a pencil before you have developed finger and thumb strength and stability results in a child developing an inefficient pencil grip. When a child has weak thumb stabilisers, he is likely to wrap his thumb around his index finger to try to create greater stability. This makes it very difficult for him to then develop the necessary finger isolation (separate movement of the fingers to give easy, dextrous pencil control). Children who have not yet developed their wrist stability will try to use whole-arm movements to do their drawings and writing and will press very hard. If a child has not developed the bilateral integration (this happens in the brain and is the smooth, efficient communication of the right side of the brain with the left) cutting will be difficult and he will have difficulty writing across his page and reading across a page or school board. Beginning to use a pencil too soon therefore inhibits learning in a formal class setting, rather than helping it.
It's funny, but many of the colors that a paint company puts in its line would never look good painted on any wall. The colors are 100% used to grab your attention when you are perusing paint displays. People are helplessly attracted to bright colors; they are much more eye-catching and far more interesting to our brains. So how does a paint company accomplish this color hypnosis of potential customers? Well, it starts with the sample card. Have you ever noticed how the brightest, most saturated color sample cards are always the first row you see in a paint display? Well you guessed it... paint companies are playing with a loaded deck (of sample cards, that is)! Paint Selection. Most paints are purchased ready-mixed but, in their selection, consideration should be given to the fact that surfaces vary in their adaptability to paint and atmospheric or other conditions having an adverse effect on paint performance. In addition to the normal weathering action of sun and rain, outside house paints are sometimes exposed to other attacking elements, such as corrosive fumes from factories or excessive amounts of wind-driven dust. Always use a sanding block for flat surfaces. Just your hand behind a thin piece of sand paper can leave grooves and low spots. It's also easier on your hands. For inside curves try wrapping the sand paper around a short section of garden or heater hose. This will help approximate the concave curve and help stay away from sanding through hard edges. On hard edges, like the top ridge of a fender or leading edge of a hood, you need to do this by hand. A sanding block will quickly dig right through the paint on a hard edge and take you down to bare metal. This means primer and more sanding.