If you want to know the quality of your product, you must compare it.

Their production conditions are the same. When the powder coating is produced by different manufacturers, it is easier to see the differences in comparison.

When putting the two boards together, Li Wei first observed the color.

I found that there was still some deviation.

Of course, this deviation is not caused by color adjustment.

Because when Cheng Xiang took away two boxes of paint, he did not bring his own sample to pass and chose a color himself.

So it is normal to have deviations.

“Is this color acceptable?”

"I think the color is very good, and the whiteness is better than our original ones."

This has to be said to be an unexpected surprise, the aluminum ceiling is prone to yellowing.

You should know that after scraping the wall, the whiteness is actually very high.

In the past, my own products always looked a little yellower than the walls.

Now if you use Levi's products, you should be closer to the color of the wall.

Then Li Wei observed the delicateness.

Matte products have several reference dimensions.

The first is gloss.

The second is flatness.

The third is delicacy.

This can be observed directly with the naked eye and does not require the use of instruments.

Of course, you can only perceive a gloss of gloss, and it is difficult to see its accuracy with your eyes.

But for comparison, it is enough to see the eyes.

The two are equal in terms of flatness. If the gloss is glossy, Li Wei's company is a little bit higher, but this will not have any impact. It may be just one or two degrees.

The gloss can be adjusted, but if the phase is accepted, there is no need to adjust it. If the gloss is twice as high, the cost will be a little lower.

Even if it is only a little lower, it will reduce the cost.

The so-called gathering streams into rivers, and gathering sand into towers. Save a little bit here and a little bit there, and the profit will increase!

"Mr. Cheng, we have to do it right, and our products are indeed much better than theirs.

Although I am suspected of being a Wang Po selling melons and boasting about herself.

But these things can still be seen by our naked eyes.

The glossiness is almost the same, and the flatness is equal.

If you look at the delicateness, we will be several streets away from him."

Cheng Xiang actually knew it a long time ago, after all, the technicians in his company also told him.

At the same price, Li Wei's products are absolutely preferred.

But in fact, Li Wei's products are more than two yuan more expensive than what he uses now.

At this time, his technician stopped talking, but he still prefers to use Li Wei's company products.

It’s not just because of the good relationship, but more because he feels that such delicate products can improve the dimension of his own products.

Just like looking at a beautiful woman, two people have similar facial features, one has good skin and the other has poor skin, so everyone knows how to choose.

"I can see this, but as the ceiling, it is installed on a very high position.

So in fact, the effect of delicateness will not be too great, but your product is two yuan more expensive than others.

This has led to a lot of increase in my costs, although my technician and general manager did not object.

But they actually think it's better to use the original product."

The old man just said that he had used up this batch of goods and was using his own products.

Why did you start bargaining in the blink of an eye?

This is probably a businessman.

Only when you like the product you prefer will you bargain.

If you don’t like the product, then I’m embarrassed, we don’t have to talk about it anymore.

"Mr. Cheng, you know too, each price and quality are available.

The excellent fineness of the product can improve the resistance to yellowing!”

According to Li Wei's observation, Cheng Xiang should be a relatively straightforward person.

I just said that, of course, it is to lower the price.

“Anti-yellowing degeneration?”

Cheng Xiang was thinking, what is the connection between this delicateness and anti-yellowing degeneration?

What is anti-yellowing?

A white product that you keep at home for a few years will find that it will gradually turn yellow.

For example, in your cabinet, you will find that the handrails are always yellower than other places.

Why do white products turn yellow?

It's because of oxidation.

The oxygen in the air can have an effect on anything exposed to the air.

This effect is a slow oxidation reaction.

The consequence of the oxidation reaction is that it gradually turns yellow.

So you will find a lot of common things.

What kind of paper, wall, white cabinet, white shoes, white clothes.

Whether it is exposed to the sun or not, it will turn yellow slowly. However, it turns yellow faster after being exposed to the sun, and it turns yellow slowly without being exposed to the sun.

Anti-yellowing is to resist your product turning yellow, making it turn yellow slower and longer.

“What is the connection between these two?”

“Say the simplest example, cement floor.

Which of the two is more likely to be dirty, rough cement floor or smooth cement floor?”

After saying this, Cheng Xiang immediately understood.

“Of course I can also divide it from surface physics.

Think about it, the surface will be rough, will it have a larger contact area with air?

Although the two feel similar, from the perspective of microscopic physics, the surface area of ​​the two is different from the delicate surface and rough surface."

Cheng Xiang nodded, this is not difficult to understand.

The surface is rough like a mountain, so the surface area of ​​one square kilometer is even larger.

The surface is flat like a plain, so the surface area of ​​one square kilometer is naturally smaller.

“We all know that yellowing is due to the effect of oxidized substances in the air.

So if the contact area is small, does it have less contact with oxide substances?

Will the speed of turning yellow be slower?”

Cheng Xiang suddenly realized that this was really like a mountain.

Although I have been using powder coatings for many years, Li Wei knows more from the perspective of microscopic physics than himself.

“On a macro-physical level.

Is there a gap when the surface is rough?”

Li Wei paused for a moment just to let Cheng Xiang think about it himself.

"There should be no gap!"

“There must be some, but we can’t see it with our naked eyes.

There are many microscopic particles in the air, which are actually dust, and sometimes we cannot see them with the naked eye.

Think about it, if the surface is very delicate, the gaps on its surface will be smaller and there will be fewer.

So when dust falls into the gap, does the more gaps fall, the more it falls?"

Li Wei didn't need to say this, Cheng Xiang also understood the truth.

“What color is dust?”

"The color of dust is definitely much yellower than that of white powder, which is also one of the reasons for turning yellow."

Li Wei was asking and answering himself, so he didn't pause at all.
Chapter completed!