How to judge the quality of exterior paint? Can you name eight ways?

Exterior paint is a coating used to paint the exterior wall of an building, it needs to have sun protection, waterproof and other properties. In the face of so many exterior paints on the market, how to judge their good or bad? The following small editor to say the outer wall paint good or bad judgment method, let's see it!
I. The outer wall coating good or bad judgment method to see the water quality solution
the outer wall paint static layering, the upper layer 1/4 for the aqueous solution, if the water solution colorless or slightly yellow, clear floating less, then the paint is good.
2, the outer wall paint good or bad judgment method to see particle fineness
take a small amount of external wall paint into a glass of clean water, after stirring the water is clearer, particles independent non-bonding and uniform size, then the paint quality is better .
third, the outer wall paint good or bad judgment method to see the wire
take the stick stick point external wall paint, can hang the wire long and constantly fall evenly as well.
Fourth, the outer wall paint good or bad judgment method of the test feel
with fingers stick to the outer wall paint kneading, no sand grain brown feeling, water flushing has a slippery feeling.
5, the outer wall paint good or bad judgment method smell
environmental protection of the exterior wall paint should be water-based, non-toxic tasteless;
, the outer wall paint good or bad judgment method to see the production date
pay attention to view the outer wall paint production date and shelf life, expired paint can never be purchased.
7, the outer wall paint good or bad judgment method to see the price
is not the higher the price is better, nor the lower the price is not good, but the price of the outer wall paint has a certain cost price control.
8, the outer wall paint good or bad judgment method to see the brand
Generally speaking, the quality of the formal exterior paint brand to be relatively reliable, but must go to the regular shop to get goods, now the market fake imitation too many.
.