Paint blistering means that the paint produces bubbles and small pores on the paint film, which are divided into solvent bubbles and air bubbles. For example, bubbles introduced during construction or bubbles generated during film formation are called air bubbles. The cause is that the solvent evaporates too fast; the weather temperature is high, the air humidity is too high, and the surface of the object to be coated has water; the brush is too thick at one time, or the viscosity of the paint is high, the brush moves rapidly when the brush is applied, and the bubble is introduced; The stirring is excessively intense, and the bubble disappears; if the primer is not closed, it is directly painted on the surface, so that the gas staying on the object surface expands outward. The main reason for the blistering of the paint is that the volatile components in the paint are difficult to volatilize in time. It should not be a problem of water content in wood. If the wood contains water, the paint will wrinkle. Like orange peel, it is caused by foaming or volatile volatile components.

There are several ways to solve this:

1. The paint is thinned, so that the paint film is thinner every time, which is good for foaming and precipitation. However, according to experience, this effect is not great, let's try it.

2. Change the type of paint thinner and try to use the thinner of this paint manufacturer. Different diluents may also affect the paint performance and cannot be deposited smoothly.

3. Wipe the wood with thinner before painting. Because there is a possibility that some of the ingredients react with the surface components of the wood after the paint brush is applied, resulting in a gas that cannot be precipitated. After brushing, paint again, the effect can be better.

In addition, the paint is foaming. First of all, the bubble is broken, if there is water, it means that there is moisture infiltration under the paint layer or behind the sun. After the sun shines, the water evaporates into steam, which will make the patent leather foam. At this point, the hot air spray gun is used to remove the foamed paint, the wood is naturally dried, then the primer is applied, and finally the entire repair surface is repainted. If there is no water in the bubble, it may be cracked in the wood grain, and there is a small amount of air inside. After the sun shines, the air expands and the patent leather bulges. In the face of this situation, first scrape off the foamed patent leather, then fill the crack with the resin filler, repaint, or do not use the filler, after scraping off the patent leather, directly apply the microporous paint.

If the above method does not work, it may be a problem with the quality of the paint product itself, considering replacing the variety.