The reasoning here is simple. Every color in the visible spectrum can be assigned a number based on a luminosity scale (a scale from light to dark) from 0 to 9 where white is 0 and black is 9. Now suppose that the brown you are trying to cover has a score of 8, and the yellow paint you want to apply has a 4. 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. Remember, you will need to clean the airless in that same fashion before you return the airless back to the rental company.
Now that you have primed the airless, make sure that there isn't a tip in the gun of the airless and bring it over to the empty bucket. Since there is typically cleaning solution in the hose leading to the gun it is a good idea to spray that out until you see thick paint coming out. Once you have thick paint coming out you may put your tip back in. Remember that the tip will have an arrow on one side of the handle that shows which direction it must be in, in order to spray. There are two bases of paint for your house: solvent-based (oil or alkyd) and water-based (latex). Oil-based paints dry slow - usually taking up to 24 hours. The best clean up for an oil-based paint is turpentine or paint thinner. Latex paints' advantage is that it dries relatively fast, but it is not desirable in hot weather or direct sunshine. The best clean up for latex paints requires just soap and water. So if you are painting the inside of your house, it is recommended to use water-based paints, while solvent-based paints are suggested for painting the exterior of your house. Use Tinted Primer for Dark Paint Colors.In our second case, suppose you want to apply a deep, dark blue to a beige wall. The good news is that it will be easier to darken a light color than it was to lighten a dark color. In fact, it may only take 2 - 4 coats to get total color coverage in this scenario. The bad news is that if you start out with a white primer you are already moving in the wrong direction. Doing so could increase the number of paint coats you need to 3 - 6... plus the coat of primer! That's a lot of painting! White - is the concentration of all colors from the physical standpoint, since it is the white light that decomposes into all the colors of the spectrum when refracted in the facets of the glass pyramid. White color goes well with all the other colors, it is universal and brings in the element of elegance.