You scuff up existing paint for two reasons. First, you want to get rid of any oil, grease or dirt trapped in the top layer of paint. This is the stuff that cleaners and degreasers can't get off. The second reason to scuff is to set up a physical bond for the new primer and paint to adhere to. You want to give the old paint some tooth so the new sticks better.
The salt and alum should be dis-solved in 4 gallons of hot water, after which the molasses may be added to the mixture. The resulting clear solution is then added to the lime paste, stirred vigorously, and thinned with water to the desired consistency. This whitewash has a yellow tinge when first applied, but the color disappears in a few days leaving a white film.
Definitely good inside the house is a new vinyl primer-sealer to be used as a base coat under any paint. It dries in as little as 30 minutes.
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.
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.
Types of Paint. Water-based paints are usually referred to as emulsions and were traditionally used only for interior walls and ceilings. But recently tremendous advances in paint technology mean that water-based formulas, especially the high-performing acrylics, are available for all surfaces, from woodwork to metal, and for interior and exterior use. The advantages of these paints over oil-based ones is that they are cleaner, have less odour and are more environmentally sound. Brushes can be rinsed clean with water.
The reality is that the guys shooting paint, even at the cheapest shops, know how to do it. They spray a dozen cars a week and have plenty of practice laying down smooth, consistent coats of paint. They work quickly and efficiently because they have to or they don't make money. They don't really make their money on shooting paint. They profit from body work because it takes time and insurance work because it pays well.