Mimicking nature's rainwater is the easiest and easiest to imitate.

As long as you control the sprinkler head located at the top, you can easily imitate the rain of nature by controlling the amount of water output, and you can also add a little wind power, so that it seems more realistic.

The rain washes away much better than the wind.

This time it was really washed out quickly at a speed visible to the naked eye, and the residue would definitely be there, but, in Charles's eyes, this cleanliness was completely okay.

Although it is not as spotless as when it was in the exhibition, this cleanliness should be like the appearance of your own car wash, with a little dust on it, but it is not obvious.

"This works great!"

Charles pointed to the rear of the car, where the dust had fallen on it just now due to the wind not reaching, making the whole tail look foggy, but after the rain, it immediately appeared as new.

"We can do something more difficult, after all, it is to simulate the natural environment, although we can't go to the real environment to test, but our technicians are very serious, in order to achieve a better effect of getting close to the natural environment.

After the rain washes, we can add a little more dust, and then heat, about 45 degrees, so that the water evaporates quickly, at this time the adhesion of the dust to the surface of the car, must be much stronger than the previous time.

And then we'll go through the rain and see what the effect is?"

Sometimes our own car is very obvious, a layer of dust falls on it, and then if it rains some drizzle, the whole dust will easily adhere to the surface of the car, at this time, whether it is closed or rain, the washing effect on her is actually very limited.

Sometimes we see other vehicles on the road, and we can't see a little reflection under the sun, because the dust has a very strong adhesion to the surface of the car after being exposed to rain.

"Have you done experiments before?"

"Our technicians have done it, but I haven't seen it. ”

"Then let's see!"

Charles likes to see the increased difficulty that Zhang Xiaofan said, because in this way, he can further evaluate what level of self-cleaning effect this powder coating has?

Of course, this self-cleaning must rely on external forces, the wind when the car is moving, or the rain washed by nature.

Through the wind test just now, Charles can clearly feel that the adhesion of this paint to dust is relatively weak.

In other words, even if the wind is not washed carefully enough, it may only take a little rain to wash it away.

Don't be afraid of rainy days, all kinds of sewage splashed on the surface of the car, once dried is a stain, just after the rain washed, there are countless water droplets on the surface of the car immediately rolled down, proving that the superhydrophobic coating on the surface of the car does have a good repulsion effect on the rain.

If this can be taken into account when designing the car, when designing the rear of the car, you can consider participating in some angles, so that the rain can easily slide down, especially if the car is driving at high speed, even at an angle of one hundredth, the rain can slide quickly, and it can also bring up the dust that falls at the tail.

"This effect is not much different from the effect of car washing, and it seems that I really got it right this time. ”

"That's inevitable!"

Charles was a little surprised by Zhang Xiaofan's self-confidence, but this is not a bad thing, if even the owner of a company has no confidence in his own products, then it is estimated that no one is at ease when cooperating with such a company.

Sometimes cooperation is a willingness to fight and a willingness to suffer, and the two sides do not, and there is too much entanglement in terms of price, but in general, the price is still a grade with BMW's price, and there is no difference.

The price is like this, especially these two companies, or in the same country, they will be more or less connected, no matter which manufacturer you give to, the price will be low or high, and the other party will be disgusted, so the price is the most suitable.

Zhang Xiaofan has no interest in making trouble for himself, so they talked about the price several times, Zhang Xiaofan's attitude is very resolute, if the price changes, then he would rather not do business, in the end, the representative of the other party is not entangled in this price, I hope that the new material can provide some special colors.

"Mr. Zhang, in terms of price, we will come at this price, we have no opinion.

But I hope that Mr. Zhang can make us some special colors, which only we at Mercedes-Benz can have. ”

There is no reason not to agree to this kind of thing, but there are also some restrictions.

"One!"

This is the answer given by Zhang Xiaofan, but Zhang Xiaofan must know this matter, there is definitely more than one, after all, doing business is like this, asking for a price to pay back, if at the beginning, Zhang Xiaofan gave two or three such amounts, then the final negotiation may become four or five.

"It's not good, it's too little!"

Charles came in person and only got a special color, and a special color can't change anything, which is not what Charles wants.

"At least five special colors, Mr. Zhang, you should also know that our company can be said to be the world's largest passenger car manufacturer, if your products are used in our cars, this advertising effect is not something that money can buy. ”

Zhang Xiaofan shook his head, whether you are the number one in the world or not, five special colors are definitely too many.

Special color, special color must be very recognizable, you can't be like white, I add black a little bit to gray, this is a special color?

This is absolutely not good, special colors must have a certain degree of recognition, otherwise it is meaningless, in the color of the car, we often see some special colors, such as green, such as pink, such as gold, these are also relatively rare, so it can be regarded as a special color.

However, Zhang Xiaofan does not want to make green, gold and pink special colors, because other car companies of these people can definitely use it.

"Five colors are certainly impossible, I can promise you two, the first is antique bronze, the second is light champagne, the other colors are certainly not good.

But I can also give a promise to your company, other companies will definitely not have more than two special colors, and we will only give one special color without special circumstances. "You have to find the latest chapters by yourself when you read books?