White paint plus what will be more white
Should pay attention to the choice of ultra-white paint or paint as much as possible, ultra-white paint or paint a little fade is just this white, such as the choice of the original whiteness is not enough paint or paint in the "smoke fire" For a long time the white will become yellowish ivory.
Add a little bit of pure blue pigment.
As much as possible to buy large brands of paint and thinner, which is directly related to the future of the air environment.
Also, in the selection of paint must also purchase matching thinner, do not only pay attention to buy brand-name paint, and let the "thrift and good tradition" of the farmers to free use of counterfeit thinner. (They are cheap and never buy expensive) This is one of the main reasons leading to the rapid yellowing of white paint.
A small amount of fluorescent whitening agent can be used.
