The difference between painting cars in summer and winter

The difference between painting cars in summer and winter

The difference between painting cars in summer and winter is that cars are indispensable in today's society, so many families will buy cars. With our increasing experience in car care, we know more about cars. The following is the difference between painting cars in summer and winter.

The difference between summer and winter car paints is 1 Generally speaking, there is little difference between winter car paints and summer car paints. However, due to the low temperature in winter, the solvent and diluent are not volatile, which leads to the slow drying speed of spray painting and easy sagging during spray painting. When the temperature is high in summer, the evaporation speed of diluent is accelerated, and the drying speed of spray painting is accelerated, but the diluent cannot be dried too fast. If the drying is too fast and the temperature is too high, the paint film will lose its luster. Automobile paint manufacturers will provide different types of curing agents and diluents according to different seasons.

Rapid drying is generally used at low ambient temperature (below 0/5℃ in winter), while slow drying is generally used at high temperature (above 30℃ in summer). Automobile repair paint and ultra-fast-drying varnish are essential products in winter, which can greatly save construction time.

Car refinishing is usually not affected by the season and needs to be decided according to the damage of the car. Generally, it is better in spring, and the best construction is at 25℃ and 50% humidity (avoid construction in rainy and foggy weather).

Touch-up paint is usually done in the garage. After the frame and body are welded, the next process is painting. Generally speaking, the first is the primer. Immerse the white car body in a syrup-like paint tank and take out the dry primer; Then send it to the dust-free workshop, spray the top coat with electrostatic spray painting process, and then dry it at about 200 degrees.

Extended data:

Paint repair requires careful inspection of damaged parts. If the damaged part exceeds one third of the parts, it should be repaired by over-repair. Over-repair refers to spraying varnish on the whole part, from the damaged part to the original color paint, and retaining the original color paint to the maximum extent.

At the same time, it also avoids the problem of color difference. Because one-third of the damage has been polished, primed, painted and lapped, it has exceeded two-thirds of the parts, and the remaining parts are few, thus losing the significance of repair.

The difference between summer and winter car paints II. In winter, the temperature is low and the diluent does not volatilize, which leads to the slow drying speed of the paint film and easy sagging when painting, but there is a curing barn to paint. Generally speaking, winter and summer have no influence on painting. You can't bake after painting in cold weather. When will it dry?

When the temperature is high in summer, the evaporation rate of solvent is accelerated and the drying rate of paint film is accelerated, but the diluent cannot be dried too fast. If the temperature is high, the paint film will get prickly heat and lose its luster

Automobile paint manufacturers will be equipped with different types of curing agents and diluents according to different seasons. When the ambient temperature is low (below 15℃ in winter), quick drying is generally adopted, and when the temperature is high (above 30℃ in summer), slow drying is generally adopted. Temperature 15℃ to 30℃ with standard,

Note: Ultra-quick-drying varnish is an essential product for local car repair paint in winter, which will greatly save construction time.

In fact, car paint can be replenished all year round. Regarding whether the car paint is mended in summer or winter, the mending time of car paint depends on the type of car paint process. There are two kinds of car paint technology, namely spray painting technology and baking paint technology. If the spray painting process is adopted, the solidification and drying time of the paint in winter spray painting process is longer, at least twice as long as that in summer spray painting. However, the baking process has little difference in four seasons, and the temperature has no effect on the solidification and drying of paint during baking.

From the effect point of view, the effect is the same all year round, no matter whether it is painting or baking, there is no difference. Regarding the difference in effect between the two processes of automobile refinishing paint, the effect of baking paint is generally better than that of painting, and the process is complex, and each process should be completed in a dust-free painting room.

Generally speaking, there is not much difference between winter painting and summer painting. However, in winter, the temperature is low and the solvent does not volatilize, which leads to the slow drying speed of spray painting and easy sagging during spray painting.

When the temperature is high in summer, the volatilization speed of thinner is accelerated, and the drying speed of spray painting is accelerated, but the thinner cannot be dried too fast. If the drying is too fast and the temperature is too high, the paint film will lose its luster. Automobile paint manufacturers will provide different types of curing agents and diluents according to different seasons. Rapid drying is generally used for low ambient temperature (below 15℃ in winter) and slow drying is generally used for high temperature (above 30℃ in summer). Automobile repair paint and ultra-fast-drying varnish are essential products in winter, which can greatly save construction time.

The difference between drawing cars in summer and winter is 3. At present, touch-up paint can be divided into spray painting process and baking paint process. Spraying technology can also be applied in winter, but the curing and drying speed of coatings is very slow, which is generally twice as long as smallpox in summer, and other aspects will not have much impact.

If the baking process is adopted, it will not affect all the year round. Because the baking process needs to be completed in the painting room, the drying conditions in the painting room are very stable, and the drying speed of paint will not be affected even in winter. In terms of effect, there is no quality difference between winter painting and summer painting under the same conditions.

Because 4S shops or auto repair shops need to be repaired, it doesn't mean that you can start work immediately by driving past the master. Even a 4S shop will take about two days at the earliest, let alone painting the whole car.

At the same time, the drying of automobile paint will also affect the maintenance time. If the spray painting process is used in winter, it can't be done in two hours. On the road, the maintenance position will only be covered with dust, and then the paint surface will be uneven. Therefore, I suggest that you reserve about two days when painting.

If there is a professional painting room, it doesn't matter if it is painted in winter. Encourage friends to go to a professional maintenance agency when repairing car paint. Professional maintenance organizations are more fully equipped and have better maintenance effects.

It is normal for the paint surface to be damaged in normal use, and rubbing is inevitable.

The car paint consists of four layers, which are electrophoresis layer, middle coating layer, color paint layer and varnish layer in turn from inside to outside.

After the whole body is assembled, the robot will soak the body in the electric swimming pool, so that an electrophoretic layer will be formed on the surface of the body, and the role of the electrophoretic layer is rust prevention.

After the electrophoretic layer is formed on the body surface, the robot will spray the intermediate coating. The key function of the intermediate coating is also rust prevention, and it can also improve the bonding ability with the next layer of car paint.

After the middle coat is sprayed, the robot will spray the color paint layer, and the key of the color paint layer is to play an aesthetic role. All kinds of body colors that we can usually see are presented through the paint layer.

The outermost layer of paint is varnish layer, and the key function of varnish layer is to protect colored paint layer and improve the gloss of car body surface.

The varnish layer is transparent paint.

Usually, most minor scratches are basically left on the varnish layer, and the scratches on the varnish layer can be removed by simple grinding.

However, it is not recommended for friends to polish frequently, which will reduce the thickness of varnish layer.