Since the coating is cured at low temperature, the curing temperature can already drop to about 125 degrees.

Although this is experimental data, in actual production, the temperature may be slightly higher, the curing temperature is more accurate, it should be about 130 degrees, and the baking time should be about 35 minutes.

Low-temperature curing coatings have two biggest benefits.

The first is to save energy.

Any oven that reaches a temperature of 130 degrees is actually very simple, and requires less energy, after reaching 130 degrees, the energy consumption increases by 15 percent for every 10 degrees of heat.

After reaching 180 degrees, energy consumption increases by 20% for every 10 degrees of increase.

Therefore, the energy consumed by controlling the temperature at 130 degrees in 35 minutes is much smaller than that consumed in 180 degrees in 10 minutes.

How much less is the specific, Zhang Xiaofan does not have an exact number, this kind of consumption comparison, the general spraying company will not care too much.

Therefore, it is difficult for Zhang Xiaofan to collect accurate data, but there is certainly no problem with saving energy.

The second benefit is that the range of substrates that can be sprayed is much wider.

Just beginning, solid powder coating in the general sense.

The range of applications is limited to aluminum, iron, and copper.

Because these three metal materials can withstand high temperatures without deformation, the physical and chemical properties will not change.

Of course, there is a limit to this high temperature.

The general solid powder coating can be completely cured as long as it reaches about 200 degrees, so there will be no change in the physical and chemical properties of these three metals.

But there are some substrates, such as plastic, such as wood, that are completely incapable of withstanding high temperatures.

In order to spray on plastic and wood, low-temperature curing coatings were created.

However, there is a necessary condition for the spraying of solid powder coatings, that is, the substrate must be electrically conductive.

Copper, aluminum, and iron are all metals that can conduct electricity, so solid powder coatings can be sprayed on them.

For the spraying of solid powder coatings, the most common and widely used spraying tool is the electrostatic powder spray gun, which is also the key equipment for powder coating.

Of course, there are two types of static electricity spray guns.

The first is the corona discharge type, and the other is the friction charge type.

The two most widely and common are the first type, corona discharge.

To put it simply, when the solid powder coating is sprayed out of the spray gun, the key parts of the gun body release a negative charge, so that the solid powder coating also has a negative charge.

In fact, all metal substrates, when they are hung in the booth, the booth is grounded, so these substrates will have a slight positive charge on them.

The powder coating particles, after leaving the nozzle of the spray gun, carry a negative charge.

The positive and negative charges must be attracted to each other, so the solid powder coating particles with a negative charge are easy to adhere to the substrate.

However, because the solid powder coating particles will be sprayed on the substrate layer by layer, they are all negatively charged.

So here's the problem, we all know that opposites attract, and similarities repel.

Then the powder coating particles with a negative charge sprayed in the front will definitely have a very large repulsion effect on the powder coating particles sprayed in the back.

So the reason why the substrate should be conductive is that it allows the excess negative charge to be channeled into the ground.

But wood and plastic are not electrically conductive, so there is a situation where powder coating particles have a hard time adhering to wood and plastic.

But powder coating people, never be stumped by these difficulties, since you don't conduct electricity, then I will try to make you conduct electricity.

The easiest way to do this is to apply a conductive primer to all wood and plastic.

However, this conductive primer itself needs a certain amount of adhesion, otherwise it can easily fall off with the wood.

After having a conductive primer, the solid powder is sprayed, so that the finished product has a very good surface effect and very good adhesion.

Therefore, the application of low-temperature solid powder coatings has a very wide range after the temperature drops to a certain node.

The wooden tables and chairs we often use, the coat of paint, many of which are sprayed with solid powder coating.

There are also things like the sewing machine, the wood machine board on it, the layer of off-white paint, a lot of which is sprayed with solid powder coating.

Of course, there are also those who use paint, but the use of paint will cause pollution to the atmosphere, and when spraying, it will also have a great impact on the health of workers.

Especially at the moment, since many companies exist in the form of small companies.

These small companies are located where there are likely to be a lot of residents around, and if you use paint, but your recycling system is not very perfect.

Then there will be a very big hidden danger, and the surrounding residents will smell the smell of paint from time to time, which is very uncomfortable.

In the awareness of environmental protection is becoming more and more important, the living space of paints and coatings is getting smaller and smaller.

Especially the kind of small workshops, small companies, and home-style paint spraying will slowly be eliminated.

This is a general trend of environmental protection, and no one can avoid it, and people's awareness of environmental protection has increased, so these companies use paints and coatings to have an impact on the surrounding residents.

It's very difficult to survive, because everyone knows about the number of whistleblowers, and as long as they report it, the EPA will come and shut it down.

So in the future, solid powder coating is definitely a trend.

Zhang Xiaofan is convinced of this, which is why he has always decided to take root in the solid powder coating industry and never touch the paint industry.

That's because compared to paint coatings, solid powder coatings are environmentally friendly and environmentally friendly coatings.

It is estimated that the VOC emissions of powder coatings from manufacturing to spraying to finished products are almost zero, about 0.2% to 0.3%.

It also contains a lot of water vapor, and some of the rest of the organic matter emitted very little, and there is hardly any odor.

Such an environmentally friendly coating is definitely the trend of the future, which is why it is said that solid powder coating is an environmentally friendly coating and a green coating.

Therefore, the emergence of low-temperature curing coatings has brought a very big dawn to the solid powder coating industry.

The solid powder coating industry has more than doubled, which is the impact of the expansion of the application range.

But in 07, the entire coating industry, including the solid powder coating industry, the oil-based coating industry, and the water-based coating industry.

The proportion of the solid powder coating industry is still very small, the mainstream is still paint coatings, and the proportion of water-based coatings is even smaller, and it is even still in the research and development stage.

This is also why Zhang Xiaofan just directly rewarded Tan Jun with a bonus of 250,000 yuan.

This is the largest single bonus since the establishment of Zhimei New Materials, which shows how much surprise the low-temperature curing coating and curing temperature bring to Zhang Xiaofan when it breaks through a certain critical point.