Issues related to the performance and effect of water paint

1.

The adhesion is better than that of paint (which does not mean inferior water paint).

2.

Because the water paint film does not contain yellowing substances, and the oily nitro group contains a lot of nitrocellulose, PU contains a lot of TDI and other easy yellowing substances

3.

The softness of water paint is incomparable to paint, because water paint film is almost pure resin cross-linked, and nitro contains a lot of nitrocellulose, PU contains a lot of easily broken TDI coating online coatingol.

4.

No, in a sense, it is easy to achieve a certain anti-cracking function

Wood has hydrophilic characteristics, and nano-level water-based resin can penetrate into the material to a certain depth with the wood pipe.

5.

No, the details are as follows:

(1) Calculation of wood moisture content and wood moisture content:

Based on a piece of solid wood with a thickness of 1M*1M and a thickness of 1CM, the water content of the solid wood used by general furniture companies during processing is 12% (the water content is the weight of the moisture in the wood, and the percentage of the weight of the wood after it has been dried)

Take three types of wood with a moisture content of 12% as an example (high in the south and low in the north), and their corresponding moisture weights are shown in the following table:

(2) Water content of wood after coating with water paint:

The theoretical calculation is as follows.

Take three types of wood with a moisture content of 12% as an example, and the corresponding changes in moisture content after spraying are shown in the following table:

From the above table, the increase in water weight after spraying is almost negligible.

Coupled with the subsequent drying process (such as active drying), that little water will evaporate without a trace

(3) Once the wood is sealed by the first layer of coating film, the water sprayed on the second layer cannot enter unless the first layer of primer is not waterproof

(4) The actual water absorption of the front surface of the wood is very poor.
The water enters the wood mainly at the ends.
If the ends are closed as early as possible in the furniture manufacturing process, the moisture content of the wood is more difficult to change
.

6.
What is the hardness of the water paint?

The hardness of one component is HB～1H, which is equivalent to nitrocellulose paint; the hardness of two components is 1～2H, which is similar to PU paint
.

Note: Some single-component products have a certain amount of hydroxyl, if used with a curing agent, it can often increase a HB hardness

7.
Is the water paint resistant to cold water?

The poor ones are intolerant to cold water (most of them), white shadows, bubbling or infiltration, etc.
, and the good ones are resistant to cold water (very few)
.

8.
Is the water paint resistant to boiling water at 100℃?

The poor ones are intolerant (most), white shadows, bubbling or infiltration, etc.
, the good ones do not respond (very few)
.

9.
What is the acid and alkali resistance of the water paint?

Both can pass the national standard test like paint, and some items are better than paint, such as alcohol resistance
.

10.
Can water paint achieve the gloss of paint?

The gloss is less than one point, such as a single-component water paint can achieve 8 points of light, two-component can achieve 9 points of light, but matte can be more dull than paint
.

11.
What is the weather resistance and new resistance of water paint?

It is much better than paint, about twice as much, because the resin cross-linking method of water paint is different, so when used in outdoor painting, water paint has more obvious advantages than paint
.

12.
Does water paint have stronger permeability to wood?

Yes, wood is hydrophilic, and the resin of the water paint can easily penetrate into the wood and bind the wood fibers, which will help the wood to resist cracking
.

13.
Can water paint have the clarity of paint?

Yes, of course, it also depends on the clarity and crosslinking density of the resin itself.
Adding powder to the paint will also affect the clarity of the paint film
.

14.
What is the smoothness or feel of the water paint?

Well, it's the same as paint, and it's the same as paint
.

15.
Why is it said that water-based coating film is the most consistent coating film for wood?

Because the water paint film is a wrinkle film, and the paint is a balanced film, the water paint can better meet the non-stop deformation of the wood day and night
.

16.
Does the rapid hardness of water paint slower than paint mean that the water moves slowly?

No, in fact, after the water paint is painted, the moisture is almost completely volatilized before packaging, and the fast hardness is slow.
This is caused by the slow volatilization of additives such as water-based plasticizers, which are much slower than similar oily substances
.

17.
Why is the water paint film getting harder and harder?

Because as some of the additives are volatilized, the water-based resin will become more squeezed and tighter as it adheres to each other.
Naturally, the hardness of the paint film becomes higher and higher
.

18.
Does the abrasion resistance of water paint represent hardness?

It does not mean, but it has a certain relationship.
High hardness can improve scratch resistance, but resistance to abrasion may be related to the quality of film formation and the amount of water-based wax added
.

19.
Why is there little dust when water paint is polished?

Because resin has better hydrophilicity than oil-based resin, flying dust can easily absorb moisture in the air and sink.
Therefore, the use of water paint will make the air particularly clean
.

20.
Why can't water paint be polished with water sandpaper?

Because water sandpaper was originally used for operations that require water to be polished, the sand planting method and powder removal method are also different from dry sandpaper.
It is easy to generate heat after sanding.
The water paint film itself has more resin and is more likely to be heated and replasticized.
Add water sandpaper The powder removal ability is poor, which causes the sandpaper to be easily stained
.

21.
In wet weather, water paint is easier to whiten than paint?

This has a great relationship with their respective quality and performance.
When both are high-quality products, the paint is more likely to whiten
.

22.
How close is the water paint?

Very good.
When the water paint becomes a stable film, the resin that penetrates the wood fiber and the resin on the surface will be densely cross-linked, and will not be cracked due to the peristaltic movement of the wood, and it will have better sealing properties than paint.
Of course Does not represent poor resin
.