What material is used for PU lines, and what is the difference between PU lines and gypsum lines?

Polyurethane (abbreviated PU is polyurethane) decorative products are made of rigid PU foam, which is mixed with two components at high speed in a filling machine, and then enters the mold to form a hard skin. Material: Non-plastic polymer material. The most outstanding performance of polyurethane is that the finished product is stable, and the thermal insulation and waterproof performance is excellent.

The application is very widespread.

PU lines are made from PU synthetic materials. PU is the abbreviation of polyurethane, and the Chinese name is polyurethane for polyurethane. It is made of rigid PU foam, which is mixed at high speed with two components in a filling machine and then enters a mold to form a hard skin.

1) PU is made of polymer composite materials, which is non-toxic, harmless and environmentally friendly;

2) PU strength is very good, can withstand normal falls without damage;

3) PU is a polymer material formed by the mold at high temperature, without producing any fine dust fibers, etc., which is harmless to the human body;

4) Moth-resistant, moisture-proof, mildew-proof, acid-alkali resistant, will not be affected by weather changes and cracking or deformation, washable, long service life.

5) Flame retardant, no spontaneous combustion, no combustion, and can be automatically extinguished from the source.

PU lines are made of rigid PU foam, which is mixed in two components at high speed in a filling machine and then fed into a mold.

It is molded and forms a hard skin. At the same time, it adopts a fluorine-free formula, which is not chemically controversial, and is an environmentally friendly decorative product in the new century.

Characteristics and applications of lines: nailed, sawed, planed, washed, bent shaped, no cracking, no deformation, no moth-eaten.

It can be used both indoors and outdoors. The installation is simple, the pattern effect is clear and natural, elegant and luxurious.

Line market**: Take the width of 12cm * length of 240cm as an example, the market retail ** is 52 yuan (RMB), the market wholesale price.

The grid is 35 yuan, the cost of raw materials is 12 yuan, and the profit is considerable. If there is a foreign market, the profit is better.

After renovation, many people want to decorate their houses more beautifully, so some people will paste plaster lines on the corners of the roof to play a decorative role. With the change of the times, people can choose more and more decorations, and PU lines have also appeared on the market, so some people are struggling with whether to paste plaster lines or PU lines to decorate their homes, today we will learn what is gypsum lines, what are PU lines, and what is the difference between them?

PU lines are lines made of PU (polyurethane) as a synthetic material. Generally, rigid PU (polyurethane) foam is made, and then this PU foam is mixed at high speed in a filling machine, and then the mixed object is poured into a mold for molding. The PU line made in this way can resist mildew, moisture and acid and alkali resistance, and has good toughness and elasticity, is not easy to deform, and can also be arbitrarily bent and cut into various shapes.

Moreover, the PU line is not easy to burn, flame retardant, and will automatically extinguish after leaving the source. Even some decorations can be pasted on the outside of the PU line to make the PU line more beautiful. The quality of the PU line is also very light, and the service life is very long.

Gypsum line is a kind of gypsum product, which is mainly mixed with gypsum powder by adding water in a certain proportion, and then adding some fibers to increase toughness, and pouring it into a mold for molding. The gypsum line has the functions of fire and moisture prevention, heat preservation and heat insulation, which is very practical and beautiful.

Relatively speaking, the material of PU lines is better than gypsum lines, but it is more expensive than gypsum lines. PU lines are also more environmentally friendly than gypsum lines, PU lines are not easy to break than gypsum lines, and PU lines are lighter than gypsum lines. PU lines also have a longer life than gypsum lines and are more moisture-resistant.

The construction of PU lines is also more convenient than gypsum lines, and the practicability is also higher.

Therefore, on the whole, the PU line is better than the gypsum line in terms of functional material and environmental protection and durability, but it is generally about 3 times that of the gypsum line. For general decoration, it is still more expensive, and if the family is richer, it is better to choose PU lines.

The difference between the PU line and the gypsum line is that the durability of the PU line is relatively poor, and the quality is relatively poor, and it may be damaged and fall off in the later use process, while the gypsum line is very strong, no matter how it is used, it will not fall off, and the decorative effect will be better, which is the difference between the gypsum line and the PU line.

The difference between PU line and gypsum line is: they belong to two different materials, and the advantage of PU line is that it is moisture-proof and waterproof and does not crack; The oil line is made of polymer composite materials, non-toxic and harmless, the additives of the environmentally friendly gypsum line and the formaldehyde in the solid wood have certain environmental protection problems, the gypsum line is easy to break, the PU line has good strength, can withstand normal beatings, and does not damage.

PU line and gypsum line are two different materials, in fact, compared with gypsum line, PU line is more dominant, moisture-proof, waterproof, and not cracking.

1. The PU line is made of polyurethane. PU line is a line made of PU synthetic raw materials, Chinese called polyurethane, referred to as polyurethane, made of rigid PU foam, this hard PU foam is mixed with two components at high speed in the filling machine, and then enters the mold to form a hard skin.

2. PU line characteristics: moth-resistant, moisture-proof, mildew-proof, acid and alkali resistant, will not be cracked or deformed by weather changes, washable, and has a long service life; Flame retardant, no spontaneous combustion, no combustion, and can be automatically extinguished when away from the source; It is light in weight, good in hardness, has good elasticity and toughness, and is easy to build. It can be sawed, planed and nailed, and can be bent into various arcs at will.

The time spent on construction is less than that of normal gypsum and wood; Diversity, generally based on white, can be matched with color at will on the basis of white, can also be done gilding, gold, washing white, makeup, antique silver, bronze and other special effects. The surface pattern is clear and realistic, and the three-dimensional effect is obvious; It is light and not easy to deform, and the surface can be finished with latex paint or paint.

Polyurethane, not afraid of water, not cracked, can be drowsily colored, and is a substitute for gypsum products.

The PU line is the polyurethane line, which is called differently. It is a polymer material, and its performance is much superior to that of gypsum. It is a substitute for plaster lines and solid wood lines. It can do a variety of imitation colors. It has become popular abroad. It should become popular in the country soon.

Clause. 1. Look at the appearance, the appearance is required to be full and natural, with clear edges and corners, no impurities, dirt, decolorization or poor surface such as paint piles. If such a line is reached, it is the best grade.

Generally, the surface of the bad line is relatively rough, and the place that was originally a sharp corner has become a rounded corner, and the manufacturer has insufficient material in order to save costs, or the mold itself is not standard and not well-made, so the line is relatively lighter.

Clause. Second, look at the line section (that is, density), if the quality of the line is good, the section structure is uniform and tight, there are no pores or small holes, there is no gap when the two lines are spliced, and the line is relatively thick and heavy.

Generally, the line cut surface is rough, and there are holes, the product is relatively light, the manufacturer uses low density raw materials, the foaming rate of the product is large, and the shrinkage rate after the line is installed, resulting in cracking and line deformation at the installation interface after a period of time.

Clause. Third, on the environmental protection of the line, many dealers reflect that some manufacturers of PU lines after unpacking the smell is particularly heavy, which is caused by the low-cost and inferior paint thinner (seriously not environmentally friendly) selected by some factories, PU line due to its own material for polymer foaming is absolutely free of formaldehyde and other polluting elements, often due to the manufacturer to save costs to choose inferior paint, thinner caused by the secondary pollution of the PU line finished line, this phenomenon is currently quite common.

The difference between PU lines and solid wood lines is mainly reflected in the following points:

In terms of styling:

The PU line is molded, the color is changeable, the pattern is rich, and it can be matched with a variety of home decoration styles at will.

The solid wood line texture is good, there are fewer colors to choose from, and the flower style is natural and single, which is suitable for Chinese and American home decoration styles.

In terms of material properties:

PU lines are light in size, fireproof and flame retardant, moisture-proof and insect-proof, non-fading, non-aging, strong stability and not easy to deform.

Solid wood lines are heavy in size, and they need to be protected from moisture or insect moths in use to prevent deformation, aging, and falling off.

From the construction side:

The construction cost of PU line is low, the volume is light, and it can be planed, sawed, nailed and glued in the processing process, which is easy to install and handle, and basically does not need maintenance after installation.

The solid wood line is installed by the nail installation method, which needs to be chiseled and grooved first and then fixed with a nail, and the nail head is smashed flat and rushed in. When splicing the spacer wooden strips, it is necessary to use viscose splicing, and the splicing is required to be smooth.

From an environmental point of view:

The raw material of PU line is polyurethane, with a hard skin, a fluorine-free formula, and stable chemical properties, which is a new type of environmentally friendly material.

Solid wood lines are made of natural wood, and the processing process requires cutting and consuming a large amount of forest resources.

Hello, the pu line is made of bamboo and wood fiber materials, and the solid wood lines are made of logs or high-density boards, and the materials are different, thank you.